Phoenix Interface - Johnson Controls
Contents
1. Ea ENS o ET 777 2 EmegexyOwmdeWpu E 3 Switched Flow Quantity 4 Hot Deck TAC Command Ln Hot Deck Flow Feedback Laboratory Controls Phoenix Interface 3 21 Office Supply Terminal Points The MIJ500 Office Supply terminal points are located on terminal block TB12 Note The MIJ400 does not have these points Table 10 Office Supply Terminal Points Pin Description C 2 GN p cd uw O 4 Om D Bv O Office Supply Flow Feedback b 08 Office Supply Flow Alarm Three Position Connector for Power The MIJ400 Three Position Connector for Power terminal points are located on terminal block TB6 The MIJ500 Three Position Connector for Power terminal points are located on terminal block TB13 Table 11 Three Position Connector for Power Pin X Description WireColr 3 en B 3 uw we Note For startup and commissioning refer to Phoenix Controls Corporation Operations and Maintenance Manual 3 22 Laboratory Controls Phoenix Interface TB EFC BYPASS AUX I MAKE UP AIR GEX RETURN HD MIJ400 To EXP B D s ADD EX BYPASS V Li GEX RETU HD HD HD HD 1 ORANGE2 3 4 GREEN 5 YELLOW 6 7 BROWN 8 15V WHT COM BLK 7 15V RED 15V WHT COM BLK2. Connect the Digital Multi Meter across the N2 and REF screws on the N2 terminal block Figure 27 Write down the DC voltage reading Repeat for N2 and REF then for N24 and N2 Compare the voltages you read on the DMM to the following values N2 to REF 42 45 to 2 98 VDC N2 to REF 2 06 to 2 54 VDC N2 to N2 0 36 to 0 92 VDC If your readings are not approximately within the ranges listed above that particular wire is grounded shorted or crossed with another wire Correct and measure again If your readings are approximately within the ranges listed above the bus is properly wired N2 Bus Terminal Block N2 Bus Terminal Block N2 Bus Terminal Block on MM CVT101 on Panel LTD Version Companion on ASC No Q S Q Y C zBus Q m um O N2 5 T Mes C2 REF gt gt gt REF N2 GND EC ow N2 to REF N2 to REF N2 to N2 2 45 to 2 98 VDC 2 06 to 2 54 VDC 0 36 to 0 92 VDC Note For best reading place probe on metal plate inside terminal not on screw POLARTY Figure 27 Test for N2 Bus Shorts Crossed Wires Grounds Check the voltage and polarity of the N2 DC bias voltages at the FHI Do so by connecting the DMM across N24 and REF Figure 27 Write down the reading Repeat for N2 and REF then for N2 and N2 Compare the voltages you read to the following values N2 to REF 42 45 to 2 98 VDC N2 to REF 2 06 to 2 54 VDC N2 to N2 0 36 to 0 92 VDC If yo
3. If you still read greater than 5 VDC V AC the transformer s secondary is earth grounded Remove the earth ground on the transformer to the FHI and measure again If the value is still 5 VDC VAC or greater make sure the 40 pin cables are disconnected and then replace the FHI 2 With the Digital Multimeter still connected reconnect each set of field wires one at a time until you read 5 VDC VAC or greater At this point you have discovered one cause of the ground loop Correct the problem by adding an isolation relay for BI or BO points or floating AI or AO points 3 Continue to reconnect each set of field wires until all ground loops are found and corrected You ll know that all grounds are corrected when you read less than 5 VDC VAC on the DMM AHU Line gt ic f Voltage lt s Note Test with 40 pin EXP Cables disconntedted C24 VAC COM Field Wiring AICOM BICOM ZBUS COM AOCOM BOCOM 100Kohm S DMM 5 VDC VAC OK Isolated DMM 5 VDC VAC Earth Grounded 1 4 watt S S 4774 GRDLOOP Figure 15 Testing for Ground Loops 3 30 Laboratory Controls Phoenix Interface N2 Bus Characteristics Networking the Controller Installing the N2 Bus When installed in a Metasys Network the PHX receives commands from the Network Control Unit NCU or Companion on the N2 Bus and transmits status reports in return The maximum electrical limitation on the N2 Bus is 255 devices However the number
4. Voltage V 0to 10 VDC SW1 to position V and set SW2 to position 10 V Resistance 1000 ohm Nickel 1000 ohm SW1 to position T and set Temperature T Platinum or Potentiometer SW to position 2 V The FHI has two sets of DIP switches One set is for configuring the analog input points and the other for setting the address of the controller Use Table 14 to set the analog input DIP switches Instructions for setting the N2 Address DIP switches are described in the next two sections called Networking the Controller Installing the N2 Bus and Networking the Controller Zone Bus Communications 3 26 Laboratory Controls Phoenix Interface BAHNSON CONTES METASYS AS FHI100 0 ANALOG INPUTS ih eee eh GG BINARY INPUT thi ee RE ANALOG INPUTS COMMON BINARY COM 15VDC mm mmm 15VDC COMMON mm n gt ANALOG INPUT S BINARY IN BINARY OUTPUTS FHI100 Figure 12 Setting Analog Input DIP Switches on the FHI Use the following table to set the switches For example if you connect a 10 VDC input to AI 4 set SW1 4 to Off and SW2 4 to On Table 14 Analog Input DIP Switch Settings Hardware Temp 2 VDC 10 VDC Point Resistive Input Input Input Fawr swe sm owe om sw xr o or Tor Tor or on me fon for or or or ow us fon for or or or ow ma ov for or or or ow us fon for or or or ow us ov or or o
5. Bypass Valve Exhaust Fan terminal points are located on terminal block TB8 Note The MIJ400 does not have these points Table 6 Ancillary Exhaust Bypass Valve Exhaust Fan Terminal Points Pin Description DENN UNES MN NEN 2 e a v 4 Anl Exhaust Flow Feedback ps AayExustFowAam 6 Scaleable Bypass EFC Command e Exhaust Fan Bypass Flow Alarm The MIJ400 Exhaust Bypass Valve Exhaust Fan Interlock terminal points are located on terminal block TB5 Table 7 Exhaust Bypass Fan Interlock Terminal Points Pin Description 341 ev o 2 EmegexyOvdemut 3 o O BEEN Bypass Air or Exhaust Fan Feedback D 8 Bypass Air or Exhaust Fan Alarm 3 20 Laboratory Controls Phoenix Interface Makeup Air Controller Terminal Points The MIJ400 Makeup Air Controller terminal points are located on terminal block TB4 The MIJ500 Makeup Air Controller terminal points are located on terminal block TB9 Table 8 Makeup Air Controller Terminal Points Pin Description 31 eu 2 es a ww 4 FewComad s Sealeabe Fw Feedback Pi Flow lan O SOS These connections are only available on the MIJ500 Ancillary Terminal Points The MIJ500 Ancillary terminal points are located on terminal block TB11 Note The MIJ400 does not have these points Table 9 Auxiliary Terminal Points Pin Description
6. From Phoenix Maintains Lab Pressurization NCU Enclosure EXP for 3 to 6 Hoods PHX600 PHX200 does not contain this board EXP for 0 to 2 Hoods PHX200 Converts analog voltage from MIJ to digital voltage for FHI and digital voltage from FHI to analog voltage for MIJ FHI Controller e Temperature Control Humidity Control MTMIJ e Provides Interface to the N2 Bus Figure 1 The PHX Lab and Fume Hood Interface Module Laboratory Controls Phoenix Interface 3 5 Overview The Phoenix Lab and Fume Hood Interface Module PHX is an input output device for complete point monitoring and control of laboratory airflow control applications when used within a Metasys Network and Phoenix Controls Corporation MIJ 2800CFM hom 2300CFM LAB Figure 2 Lab with Six Fume Hoods You can easily configure input and output points as well as software features using HVAC PRO for Windows Revision 4 0 or greater Using HVAC PRO for Windows the data base can be downloaded through a local thermostat or network wide N2 Communications Bus You can monitor not only laboratory controls but also a wide variety of HVAC equipment The PHX connects the Phoenix MIJ board to the Metasys Network through a Network Control Unit NCU or Companion When connected to the Metasys Network the PHX provides point and control information to the rest of the network Th
7. No communication Some hardware problem exists such as a Check for tight and proper Error 16 loose connection or a failed component connections between the laptop PC Cable PRO and the PHX Controller is still in reset mode Resetting Wait ten seconds for the reset period takes ten seconds after a download to expire before trying to commission the controller Bad CRC The Cyclical Redundancy Check of the Check for tight and proper Error 17 message received is incorrect due to an connections between the laptop PC error in transmission Cable PRO and the PHX Invalid response The message received is not what the Error 18 HVAC PRO for Windows Load utility expected Laboratory Controls Phoenix Interface 3 47 3 48 Laboratory Controls Phoenix Interface Commissioning Troubleshooting Checking the Installation Commissioning Troubleshooting Commissioning a PHX begins after the unit is mounted wired and the control and hardware software features have been defined through HVAC PRO for Windows Refer to the HVAC PRO Version 4 00 for Windows Phoenix Lab and Fume Hood Interface document for complete controller configuration information A laptop PC with HVAC PRO for Windows for Windows Revision 4 0 or greater is required to perform a complete system startup procedure Review the mounted PHX to ensure proper installation Refer to the appropriate illustrations in the section of this document titled Installation Procedures
8. REF 2 06 to 2 54 VDC N2 to N2 0 36 to 0 92 VDC If your readings are not approximately at these values and the FHI does not communicate check for power on the FHI then replace the FHI Laboratory Controls Phoenix Interface 3 41 If your readings are within these values go on to Step 5 NCU N2 Bus Terminal Block HRD 6 3 SFT on ASC N24 to REF GND GRD C zeus 42 45 to 2 98 VDC m a Ney E N2 to REF Hm m 42 06 to 2 54 VDC 4 1 N N2AREF O N2 4 ac N2 am N2 to N2 ovm n 40 36 to 0 92 VDC e Note For best reading p ace probe on metal plate inside terminal not on screw VOLTAGE2 Figure 23 Measuring N2 Voltages at PHX 5 Before connecting the three N2 Bus wires to the PHX identify the correct voltage and polarity of each wire with the DMM The voltages should match the following N2 to REF 42 45 to 2 98 VDC N2 to REF 2 06 to 2 54 VDC REF to earth ground lt 1 0 VDC V AC referenced to earth ground with 100K ohm resistor across the DMM If the voltages are not within the above ranges end of line termination may not be set correctly Locate and fix the problem 6 Connect the N2 Bus wires to the PHX and con tinue to the next PHX Perform Steps 4 and 5 until you have connected each PHX to the N2 Bus These steps comprise the simplest and most thorough N2 Bus test 3 42 Laboratory Controls Phoenix Interface N2
9. and to the engineering drawings supplied for the individual site e Ensure that the controller terminal connections are secure e Verify that the N2 connections are secure and labeled correctly e Verify that the FHI switches are appropriately positioned Refer to the sections of this document titled Wiring Sensors and Actuators e Verify that there is a single earth ground connection to the PHX from the MIJ board following the procedures below Disconnect the two 40 pin ribbon cables between the expander boards and the MIJ Panel Use a voltmeter with a 100K ohm resistor wired across its inputs Apply power and take AC and DC voltage measurements from the 15 VDC spade connector of the PHX to earth ground Readings greater than 5 V indicate unwanted earth ground continuity to power input or output terminals of the controller Locate the earth ground connection and either remove it or isolate it through relays for BIs or BOs Laboratory Controls Phoenix Interface 3 49 Configuring the Controller with HVAC PRO for Windows You configure the PHX 200 600 with a software program called HVAC PRO for Windows This easy to use tool configures commissions and downloads the PHX s data base Figure 26 illustrates the HVAC PRO for Windows configuration process Refer to the HVAC PRO for Windows User s Manual for specific information when configuring the PHX Start HVAC PRO Y Select OEM Fume Hood Application From HVAC
10. e Configuring the Controller with HVAC PRO for Windows 50 e N2 Bus Troubleshooting Overview 51 e Troubleshooting Chart 52 e Testing the N2 Bus 52 e Test2 Using the Oscilloscope 54 e Suppression Devices 55 e Diagnostic LEDs on EXP Boards 56 Ordering Information 57 e Johnson Controls Code Numbers 57 e Vendor Code Numbers 59 Indicates those sections where changes have occurred since the last printing 3 2 Laboratory Controls Phoenix Interface About This Document Introduction This document is designed to help the technician mount and wire the Johnson Controls Inc controller that connects a Phoenix Controls Corporation Makeup Air Controller to a Metasys or Companion Network This interface controller when properly installed and commissioned controls and monitors a wide variety of points relating to laboratory and fume hood airflow controls In addition to a brief overview of the product and its functions the document provides detailed information regarding e installation procedures e mounting a Johnson Controls lab and fume hood interface PHX e mounting a Phoenix Controls makeup air controller interface MIJ to Johnson Controls Inc e wiring details e N2 Bus installation e Zone Bus communications e commissioning and troubleshooting e ordering information Notes For information specific to Phoenix Controls Corporation refer to their Engineering Guide Laboratory Airflow Controls The Phoenix Cont
11. loads such as contactors coils motors or generators Table 12 Sensor Output and Power Supply Wire Sizes and Lengths Sensor Type Wire Size Length FT_ Meters Resistance Al Voltage 0 10 VDC eane __ _so_ _1is0 _ veea ax awe Tea seo tu Single BO at 0 1 amp eama s 10 mA maximum Supply at 15 mA each te 24 AWG a o Laboratory Controls Phoenix Interface 3 25 Analog Inputs The FHI100 0 board located under the metal plate connects to the Metastat humidity transmitter and reheat valve The six analog input terminals their power supply and their common points occupy the upper left corner of the terminal strip of the FHI Figure 12 These inputs may be of two types resistive or voltage The PHX processes and controls the configured control strategy It reads the analog inputs through the analog input DIP switches located directly to the right of the analog input terminals You use these switches and HVAC PRO for Windows to select the type of analog input Refer to HVAC PRO for Windows User s Manual For temperature sensors and setpoint pots set the DIP switch for T For 3 wire voltage transmitters such as the HE 6300 Series set the DIP switch for 10V and use the 15 VDC power supply terminals next to the inputs for AIO The following table shows each configuration Table 13 Analog Input Configurations Voltage V 0to 2 VDC SW1 to position V and set SW to position 2 V
12. to make the Zone Bus connections The data rate on both the RS 232 and the Zone Bus is 1200 baud Laboratory Controls Phoenix Interface 3 45 The connection to the RS 232 COM port of the computer is by means of a DB9 or DB25 connector supplied with the Cable PRO After connecting it make sure the Cable PRO is about a foot or more away from the computer monitor and system unit IMPORTANT Insome cases a computer monitor or PC will give off electromagnetic noise that may disturb Cable PRO communications Therefore do not position the Cable PRO near the monitor or PC Zone Bus communications to the PHX or ZT are monitored with an AS CBLCON O This device has a red and green LED whose purposes are described in Table 19 Table 19 CBLCON LEDs Red LED Power Green LED COMM Cause E E o No power to PHX oF Zone Bus wire open Zone Bus wire shorted to Common or CBLCON 0 switch in download position 3 46 Laboratory Controls Phoenix Interface Troubleshooting Table 20 lists and describes the errors that may occur while using the HVAC PRO for HVAC PRO for Windows commissioning tool with the PHXs over the Windows Zone Bus The cause of the error is often a loose or improper connection between the Cable PRO AS CBLPRO laptop PC and the controller A defective COM port on the laptop could also be at fault Other times a defective controller can cause an error Note It takes ten seconds for a PHX to reset and r
13. 2 Earth Most N2 devices have isolated N2 communications power supplies Grounds Therefore there is no direct path to earth ground through any of the N2 lines However there are three exceptions in which an unwanted earth ground may be introduced into the system e from the MM CVTIOI which is not isolated It is grounded through Pin 7 of the RS 232 connector Earth ground often comes in from the ground pin on the PC s power cord or via a printer connected to the computer which in turn connects to the MM CVT101 The Companion PC itself is grounded e from a surge protection module i e Transient Eliminator on the N2 Bus It produces a small amount of leakage to earth ground when functioning properly but may be a short to ground after a lightning strike e from the Cable PRO CBLPRO 0 or 1 only If the laptop PC is earth grounded the Cable PRO would be grounded through the RS 232 common pin 3 32 Laboratory Controls Phoenix Interface End Of Line N2 EOL Termination A single ground will not cause communication problems unless another earth ground path exists in the system to complete a ground loop The PHXs also have electrical protection built into the N2 Bus transceiver circuit It prevents the N2 Bus circuitry from being damaged if someone inadvertently connects a voltage source greater than 5 VDC V AC between any two or the three N2 Bus terminals up to 30 VAC If connecting 24 VAC to the N2 Bus self resetting fuses and
14. 6100 961 1035 ohms at 77 F 25 C TE 6100 11 TE 6100 12 TE 64X0X X0X0 TE 64X1X X0X0 TE 64X3X X0X0 TE 64X5X X0X0 HE 6400 Series Nickel Sensor without setpoint phone cable connections Nickel Sensor with Warmer Cooler Pot phone cable connections Nickel or platinum sensor with or without setpoint wall or surface mounting with phone jack or terminal blocks with or without thermometer Metastat Humidity Transmitter Nickel or platinum sensor with or without setpoint wall or surface mounting with phone jack or terminal blocks with or without thermometer 1000 ohms at 70 F 21 C 25 1000 ohms at 70 F 21 C 21 C Nickel 1000 ohms at 70 F 21 C Platinum 1000 at 32 F 0 C Setpoint warmer cooler or graduated scale 65 F to 85 F 18 C to 30 C 0 10 VDC Humidity Nickel 1000 ohms at 70 F 21 C Platinum 1000 at 32 F 0 C Setpoint warmer cooler or graduated scale 65 F to 85 F 18 C to 30 C Laboratory Controls Phoenix Interface 3 57 Dampers and Code Number Valve Actuators AV 8020 Series Valve Actuator Assemblies 24 VAC Triac for Heating 1 2 in Incremental AV 8022 Series Valve Actuator Assemblies 0 10 VDC 1 2 in AV 8050 Series Valve Actuator Assemblies 24 VAC Triac 1 2 in 3 4 in 1 in and 1 1 2 in Incremental AV 8051 Series Valve Actuator Assemblies 24 VAC Triac Incremental w Feedback AV 8052 Series Valve Actuator Assemblies 0 10 VDC EDA 2040 6X Damper Ac
15. 77 15 RED MIJ500 e 1 3 TE SN T RREN TB11 AUX 1 TB12 OFC SPLY TB13 BE B E B Abba EB S TB9 MAV To second EXP To lower EXP MIJWIRE2 Figure 11 Wiring the MIJ400 and MIJ500 Laboratory Controls Phoenix Interface 3 23 To wire the MIJ board l Turn off the AC power switch Run the 8 conductor cable to each fume hood and valve Using the color code attach each wire to the connectors on TB1 through TB12 See Figure 11 Leave enough slack so that the cable for the fume hood and the makeup air valve reach the correct connectors at the bottom of the MIJ board Label each connector Plug in each connector TB1 through TB12 to the correct location on the MIJ board See Phoenix Controls drawings Do not connect the VDC power at this time TB13 of the MIJ500 TB6 of the MIJ400 Plug the 40 pin ribbon cable from the lower EXP board to the lower left Interface Connector A IFCA on the MIJ board See Figure 11 If there are more than two fume hoods plug the second 40 pin ribbon cable from upper EXP board to the lower right Interface Connector B IFCB on the MIJ board Before connecting the 3 conductor power connector to the MIJ measure the voltage on this connector Turn the AC power switch on and measure 15 0 1 VDC on the red wire referenced to th
16. Laboratory Controls Manual Phoenix Interface Section METASYS Technical Bulletin Issue Date LABORATORY Phoenix Interface PHX200 or PHX600 CONTROLS Introduction Page e About This Document e Definitions e Overview e Selecting PHX and MIJ Models e MIJ Features and Options e Branch Certification e Controller Specifications e Point Counts Installation Procedures e Installation e Tools Needed e Physical Dimensions e Environmental Information e Mounting the PHX e Mounting the MIJ Wiring Details e Wiring Guidelines e Power Source e Wiring the MIJ e Wiring Sensors and Actuators e Testing for Ground Loops ndicates those sections where changes have occurred since the last printing 1995 Johnson Controls Inc Part No 24 7678 3 Code No LIT 5951020 595 1 0395 a 4 6 7 8 9 9 10 11 11 12 12 13 14 15 17 17 18 19 25 80 Networking the Controller Installing the N2 Bus Page 31 e N2 Bus Characteristics 31 e N2 Reference Lines 32 e N2 Earth Grounds 32 e End Of Line S3 e Setting the N2 Address 89 e Measuring Bus Voltage 40 e N2 Wiring to the Network Control Module 43 e N2 Wiring to Companion 44 Networking the Controller Zone Bus Communications 45 e Zone Bus Description 45 e Cable PRO Description 45 e Troubleshooting HVAC PRO for Windows 47 Commissioning Troubleshooting 49 e Commissioning Troubleshooting 49 e Checking the Installation 49
17. PRO File New Y Select Configuration Process 1 Answer configuration questions 4 Selection Option Job Information 2 Review and change hardware parameters to fill in project name contract etc 3 Review and change default parameters 5 Save configuration v Select Print Process Select File Print to print out the configuration y Select Load Process Attach Cable PRO AS CBLPRO 4 Load assembled configuration Select Download Current Configuration Select Com port for Cable PRO connection Y c RC N Select Online Commissioning Process Attach Cable PRO 6 Review controller identification Select Commission Current Configuration 7 i permanent changes made save Select Com port for Cable PRO connection assemble and download configuration View and adjust parameters 8 Quit commissioning mode View and override inputs and outputs 9 Unplug Cable PRO Y Exit HVAC PRO PROFLOW2 Figure 26 Overview Configuring a PHX 3 50 Laboratory Controls Phoenix Interface N2 Bus Troubleshooting Overview You need to troubleshoot the N2 Bus if the Companion system is not properly communicating with the PHXs This section first presents a troubleshooting table Table 21 covers many PHX or N2 communication problems and suggests which actions to take Second specific troubleshooting tests are given Before trying one of
18. Wiring to the DR Network Control Module Note The PHX Controller is a self terminating device The NCU must have end of line termination set TB1 on Communication Terminal Board Figure 24 Connecting the PHX to an NCM Table 17 Terminal Locations TB2 Terminal Function Number PHX Connection Fchassis Ground J 6 Nm n Ref Ground 4 AF y N2B Connection 2 N2Bu N N2B Connection 1 N2Bus N2 Laboratory Controls Phoenix Interface 3 43 A hardware connection between the N2 Communications Bus and the Companion PC Panel LTD is required to service N2 devices An MM CVT101 0 Communications Converter is required to network to the PC Companion See Figure 25 for terminal locations Refer to the Metasys Companion Technical Manual for information specific to the CVT101 or Companion Panel LTD Set jumpers W1 and W2 in the 1 2 position N2 Wiring to Companion hel mE z nu E MM CVT101 io lt gt m S 5 m g B m1 E n2wire2 To Next N2 Device Figure 25 Connecting the PHX to Companion 3 44 Laboratory Controls Phoenix Interface Zone Bus Description Cable PRO Description Networking the Controller Zone Bus Communications The Zone Bus is a 2 wire communications bus that allows a computer to communicate with the PHX to download th
19. ach jack Table 15 Phone Jack Pin Identification 8 Pin Jack 6 Pin Jack FHI to Temperature Sensor Cable PRO or Zone Terminal to Temperature Sensor Al 2 Warmer Cooler 24 VAC Setpoint Al 1 Temperature 24 VAC ZnBs Sensor Common Al 1 Sensor Not used Common 8 faw s i tones 24 VAC ZnBs Not Used Common s Zwe amp s Note Refer to the Vendor Code Numbers section of this document for information on cables Laboratory Controls Phoenix Interface 3 29 Testing for A single earth ground connection on the analog common black TB13 Ground Loops wire is factory installed in the Phoenix MIJ To test for a single earth ground disconnect the 40 pin ribbon cables on the Phoenix MIJ to allow the rest of the Johnson Controls PHX electronics to float Use a Digital Multimeter with a 100K ohm resistor across its inputs and measure the voltage from the 15 VDC terminal of the FHI100 0 to earth ground If you read less than 5 VDC V AC no ground loop exists Reconnect the 40 pin ribbon cables Testing is complete If you read 5 VDC V AC or greater the circuit is improperly isolated Make sure the 40 pin ribbon cables are unplugged Note Binary outputs are often the source of ground loops Therefore we recommend that you test the binary outputs of the FHI before testing other points Follow these steps 1 Remove all the field wires and N2 Bus wires from the FHI but leave the transformer wires attached
20. ame conduit as line voltage wiring the result is a loss of communications or analog input errors Use copper conductors on all wiring connections Use twisted pair wires for the FHI Do not run N2 and field wiring in the same conduit as line voltage wiring 30 VAC or above or near wiring that switches power to highly inductive loads such as contactors coils motors or generators Daisy chain the N2 Bus without Y or T connections unless a repeater is installed in the T tap Use a green ground wire on the line voltage conduit connected between the conduit bushing and the wire barrier or the green wire of the PHX outlet Bring 120 VAC 60 Hz into top right portion of the PHX enclosure Cut back the black hot white neutral and green ground wires on the outlet to six inches Connect these to the line power using the same color code See Figure 10 below This powers the entire PHX system Green EN d White Black NN Power Switch ACPWR Figure 10 Wiring the Power Source 3 18 Laboratory Controls Phoenix Interface Wiring the MIJ Panel Termination Points Lists This section deals only with wiring the MIJ board Startup and commissioning must be performed by a Johnson Controls Inc branch that has been certified through Phoenix Controls Corporation If the branch is not certified you must seek assistance from a Phoenix Controls representative Typically lab and fume hood wiring diagr
21. ams are produced by Phoenix Controls Corporation based on their internal room schedule sheet These wiring diagrams detail the makeup air exhaust and fume hood valve wiring to the MIJ board To minimize errors Phoenix Controls uses a standard color code for the 8 conductor cable Beldon 9421 or equivalent See the following tables Fume Hood Exhaust Controller Terminal Points The MIJ400 Fume Hood Exhaust Controller terminal points are located on terminal blocks TB1 and TB2 The MIJ500 Fume Hood Exhaust Controller terminal points are located on terminal blocks TB1 TB2 TB3 TB4 TB5 and TB6 Table 4 Fume Hood Exhaust Controller Terminal Points Pin Description Wire Color i 03 quw Wie SSS 2 ov Om 3 uw Bwk 4 i ow Command Re 8 Flow Feedback Gem 6 low Arm Yd s sesh Postion Bom Laboratory Controls Phoenix Interface 3 19 General Exhaust Return Air Controller Terminal Points The MIJ400 General Exhaust Return Air Controller terminal points are located on terminal block TB3 The MIJ500 General Exhaust Return Air Controller terminal points are located on terminal block TB7 Table 5 General Exhaust Return Air Controller Terminal Points Pin Descripton 30 qu 2 o 3 jV y pa FowCmmad ps Fewedbek ps FewMam s om Ancillary Exhaust Bypass Valve Exhaust Fan Terminal Points The MIJ500 Ancillary Exhaust
22. closure and conduit for wiring terminations to the controller Figure 6 shows a common mounting configuration for the PHX If the PHX must be installed in another enclosure provide adequate ventilation to dissipate 100 watts from the 15 VDC power supply 3 12 Laboratory Controls Phoenix Interface Environmental Information The installation site of the PHX must meet the following environmental standards 4L 5 METASYSIL The atmosphere must be free of explosive vapors or escaping gases A PHX can be mounted in an intrinsically safe area only when a separate barrier exists Call Johnson Controls Technical Support Milwaukee for information if required The atmosphere must be free of exposure to corrosive chemical or salt vapors which might damage electrical equipment The temperature must be maintained between 32 to 125 F 0 to 52 C with the relative humidity non condensing maintained between 10 and 90 percent for vertical mounting and 32 to 113 F 0 to 45 C for horizontal mounting Door vents must be on the upper half of the unit for horizontal mounting See Figure 6 SASVI3IA Figure 6 Vertical Horizontal Mounting Laboratory Controls Phoenix Interface 3 13 Mounting the PHX Experimentally position the controller enclosure on the proposed mounting surface before installation to ensure the calculated mounting area is correct You can ma
23. e PHX s data base and to communicate with Zone Terminals and M100 Actuators A third wire is used for 24 VAC power to the Cable PRO Zone Terminal and CBLCON The bus interface sustains no damage in presence of fault voltages of 24 VAC M100C Actuators must be powered with separate transformers therefore only the Zone Bus and Common wires need to be pulled The Zone Bus has the following specifications Table 18 Zone Bus Specifications Multidrop serial communications bus 1200 baud bits per second Recommended Cable Type 18 AWG with shield Beldon 8760 or 24 AWG with no shield unshielded telephone cable Maximum Bus Length 500 feet 150 meters with 18 AWG cable or 50 feet 15 meters with 24 AWG cable Maximum Number of Devices 24 without Y500 repeater Range of Addresses 0 to 63 Voltages Logic High Voltage 4 VDC minimum approx Logic Low Voltage 1 VDC maximum approx Data Transmission 1 Start Bit low level 8 Data Bits least significant bit first 1 Stop Bit high level The AS CBLPRO is an interface device for use between a computer running HVAC PRO for Windows and PHXs It is used for data base downloading uploading or commissioning via the Zone Bus communication port e When used with a Zone Bus device such as the PHX or ZT the Cable PRO is strictly an electrical interface between the serial RS 232 port of the computer and the Zone Bus Cable PRO operates on 24 VAC drawn from a PHX over the wire used
24. e black wire See Figure 11 Measure 15 0 1 VDC on the white wire referenced to the black wire If these are correct turn off the AC power switch and plug the 3 conductor connector onto the upper right connector TB13 of the MIJ500 TB6 of the MIJ400 A Phoenix Controls trained technician engineer may now start up the PHX Lab Fumehood Controller If either of these voltages are incorrect turn off AC power and remove the top metal plate Remove the 15 VDC power supply and adjust the appropriate potentiometer Re assemble Note For startup and commissioning of the MIJ400 or the MIJ500 refer to the Phoenix Controls Corporation Operations and Maintenance Manual 3 24 Laboratory Controls Phoenix Interface Wiring Sensors Remember all air valves and fume hoods are wired directly to the MIJ and Actuators The temperature humidity sensors and reheat valves are wired to the FHI Use 18 AWG twisted pair wire for all sensor and output wiring to the FHI Shielding is not required but if used earth ground the shield at the metal plate You may use 24 AWG wire in some applications However the length of wire is reduced due to the resistance To minimize sensor error caused by field wiring the total resistance of all sensor wiring should be less than three ohms A CAUTION Do not run AI BI AO BO ZBus or N2 Bus wiring in the same conduit as line voltage wiring 30 VAC or above or wiring that switches power to highly inductive
25. e devices communicate through an N2 Bus For a smaller facility the PHX can function as a standalone controller with a Zone Terminal Figure 3 illustrates the connectivity overview of the Metasys Network and the laboratory 3 6 Laboratory Controls Phoenix Interface Selecting PHX and MIJ Models IL 1 PH X600 pa MIJ 40 pin Ribbon 12C Bus 24 VAC N2 l INTRCNCT NCU or CPN Figure 3 PHX Interconnection Diagram Use the PHX200 with a MIJ400 Controller if you have two hoods or less The PHX200 used with a MIJ500 provides office switched and canopy hood control Use the PHX600 with a MIJ500 when you have more than two hoods Although you can use a PHX600 with a MIJ400 the additional points read by the PHX600 are not available for use on the MIJ400 Therefore the additional cost of the PHX600 is unnecessary The advantage of using the PHX600 with a MIJ400 is in consideration of future lab expansion The PHX600 includes the additional EXP board and a larger power supply If you plan to install additional hoods office supplies or additional supply or exhaust valves in the future you would only need to replace the MIJ400 with the MIJ500 This ensures a simple upgrade rather than replacement of the power supply and adding another EXP to the PHX panel Laboratory Controls Phoenix Interface 3 7 PHX004 Figure 4 Selecting the PHX and MIJ Model
26. e to four printed wiring boards make up a PHX MIJ lab control system The MIJ is the lab controller from Phoenix Controls Corporation that connects to the supply exhaust valves and fume hoods The MIJ connects to one or two Expander EXP boards through 40 pin ribbon cables for a PHX200 or PHX600 respectively The EXP boards connect to the Fume Hood Interface FHI board through a 6 pin cable You need to take special precautions and follow good grounding procedures when installing the PHX y WE To avoid possible electrical shock or damage to equipment disconnect all power supplies to the system prior to wiring installation The CMOS circuits used in the controller are static sensitive Use static protection anti static mats and or grounding straps when working on or near internal circuitry Touch conduit ground before handling any circuit boards to prevent static discharge Laboratory Controls Phoenix Interface 3 17 Power Source Follow these guidelines Make all wiring connections in accordance with the National Electrical Code as well as within local regulations Locate equipment and route the N2 and field wiring so that signal wiring is separated from power wiring to the maximum extent possible preferably two feet however six inches is the minimum separation To establish tight reliable electrical connections use the correct wire sizes for the terminals Table 12 A CAUTION If N2 or field wiring is run in the s
27. ecifications Resolution Sample Range DC Input Sensor or Time Impedance Load Impedance Al Voltage 14 BIT 0to 10 VDC 99K ohm 0 to 1K ohm Al Voltage 14 BIT 0 to 2 VDC 470 K ohm 0 to SK ohm Al Temp Pot 14 BIT 1 5 sec 1K ohm Si Ni Pt 3540 ohm 0 to 2K ohm or 0 to 2K ohm pot ACCUM AC 32 BIT 0 to 24 VAC 370 K ohm 0 to 5K ohm BI AC 60 Hz 1 BIT 0 to 24 VAC 370 K ohm 0 to 5K ohm AO Voltage 8 BIT 1 5 sec 0 to 10 VDC N A 1K to 10M ohm 10 mA max BO AC Triac 1 BIT 1 5 sec 24 VAC N A 48 to 480 ohm 9 50 to 500 mA DC Supply Out N A N A 15 6 to 17 VDC N A 162 to 10M ohm 90 mA Laboratory Controls Phoenix Interface 3 9 Point Counts The table below lists the point count for each PHX i e PHX200 for up to two fume hoods and PHX600 for up to six fume hoods Complete descriptions of all points are listed in the HVAC PRO for Windows User s Manual Table 3 Point Counts for PHX Interface Module Point Type PHX200 PHX600 2 Fume Hoods 6 Fume Hoods Analog Inputs Binary Inputs Analog Outputs Binary Outputs Zone Bus 22 Total 16 0 to 10 VDC signals to the MIJ 6 RTD temperature elements 1000 ohm nickel 1000 ohm platinum or silicon or 2K ohm setpoint potentiometers or 0 to 10 VDC transducers 20 Total 16 0 12 VDC to the MIJ board 4 24 VAC only 1 Momentary pushbutton from zone sensor for temporary occupancy mode BI 4 may be used as an accumulator input for frequencies less tha
28. esume communication after being downloaded An effective troubleshooting technique is to use a CBLCON and observe its LEDs which will indicate the problem You may also try exchanging the component that you believe is defective with a working component of the same type A noisy wire adjacent to the Zone Bus can also cause communication errors Noise can be periodically induced into the Zone Bus thereby causing sporadic communication failures between the laptop and the PHX Most often noisy lines cause intermittent disruption not total loss of communication For more information on HVAC PRO for Windows refer to the HVAC PRO for Windows User s Manual FAN 637 Table 20 Communication Errors on Zone Bus Download ErrorDisplayed Description Solution Undefined command The device is being sent a message that Check for tight and proper Error 1 contains an invalid command connections between the laptop PC Cable PRO and the PHX Invalid message size The size of the message sent does not Error 5 correspond to the type of message sent Invalid command The command issued is not valid for the Error 11 data type Not ready The PHX cannot process this message at Cycle power on the PHX If problem Error 14 this time For example the EEPROM is not persists return PHX for repair or functioning properly replacement Bad E Write A known problem with the EEPROM exists Return the PHX for repair or Error 15 replacement
29. h as contactors coils motors or generators Laboratory Controls Phoenix Interface 3 31 N2 Reference The Reference REF line helps to provide a common reference from Lines which each device connected to the N2 line can discern the voltage levels and hence the data on the N2 and N2 lines The N2 lines may connect devices that are far apart such as in two different buildings by allowing line lengths of up to 15 000 feet with two repeaters IMPORTANT Connecting the earth ground of one building or floor to the earth ground in another building or floor can cause current to flow in the line that connects the two grounds together Therefore the N2 Bus wires must not be earth grounded Because of this the Electrical Interface Association EIA Standard RS 485 the N2 Bus specification states Where circuit reference is provided by a third conductor the connection between circuit common and the third conductor must contain some resistance e g 100 ohms to limit circulating currents when other ground connections are provided for safety For the Companion System the 100 ohm resistor is located in the RS 232 to N2 Bus converter MM CVT101 0 or in the Companion Panel LTD to earth ground Other devices are totally isolated from earth ground An important feature of the PHX s N2 Bus is opto isolation Isolation prevents interruption of all N2 Bus communication if any of the controllers on the bus become grounded N
30. hows an electrical drawing of the end of line wiring for the PHX EI sos 100K ohm N24 O t El as ASC oi PAR pM P e lt IN R 0UT gt gt FEM N2 Eee EE s PRC Microprocessor lt 100K ohm E Al AO Bl BO COM EOLWIRE1 Figure 17 End of Line Wiring for PHX Interface The EOL terminations on the MM CVT101 and Panel LTD Version Companion place a e direct current bias on the N2 wires e 220 ohm resistor from the N2 to the N2 lines to terminate them The bias prevents the lines from floating If no communications are taking place and all the EOL jumpers are set to the Out position 2 3 the N2 and N2 lines would float That is to say the bus would have no definite voltage or signal The receivers would interpret the floating N2 signal as data albeit bad data To avoid this and to provide some impedance termination make one or two end of line terminations on each N2 Bus segment With the EOL jumpers set to the In position jumper 1 2 a positive bias voltage is applied across the N2 and N2 lines This bias voltage is referenced to the REF line The bias resistors and the 220 ohm termination resistors combine to form a voltage divider By taking the tolerances on the resistors and the power supply variations into account you should expect to see the following voltage levels on the N2 lines MM CVT101 is disconnected from the PC but still c
31. ke measurements for distance between controller terminals and sensor points and valves Confirm electrical power source and conduit requirements at this time l Mounting Holes Secure the PHX enclosure to the wall using the keyhole and two other mounting holes on the back See Figure 7 Position the PHX enclosure so that it rests firmly against the mounting surface Use 1 4 inch diameter screws or bolts to hold 38 pounds 17 25 kg Using a hole saw or chassis punch cut holes for the low voltage and line voltage conduits When mounted vertically the low voltage conduit is on the top left and the line voltage is on the top right See Figure 7 To pull wire with ease use a minimum one inch conduit Use a grounded bushing on the line voltage conduit Connect the ground bushing to the sheet metal base or the green ground wire Line Voltage Keyhole uv uu UUUUUUUUUUUUUUUUUUUUUUUUTU Mounting Holes Horzvert Figure 7 Mounting the PHX 3 14 Laboratory Controls Phoenix Interface Mounting the The MIJ400 and MIJ500 boards are purchased separately from Phoenix MIJ Controls Corporation The MIJ board snaps into the upper half of the PHX enclosure See Figures 8 and 9 Phoenix Controls factory calibrates and configures the MIJ board 120 VAC Power Input Output and Switch Wire Trough 120 24 VAC Transformer to Power AS FHI Con
32. mums allowed for 3 38 Laboratory Contro installing the N2 Bus Table 16 N2 Bus Rules Rules Maximums Allowed Only one PC Panel LTD Version Companion or NCU per N2 Bus Only daisy chained devices Maximum Number of Devices 100 devices per PC Panel LTD Version Companion 50 devices per repeater 2 repeaters cascaded 5000 feet between repeaters 15 000 feet from PC or Panel LTD to farthest PHX 3 segments of 5000 feet each 26 AWG twisted pair minimum stranded 22 AWG or heavier recommended 1 switched EOL per segment required 2 switched EOL per segment preferred Line Length and Type Terminations Is Phoenix Interface Setting the N2 Address You will need to set the N2 address and test for N2 voltage polarity and isolation before actually wiring the PHX MIJ for operation The switches located in the lower right corner of the FHI are set to the same number as was assigned to the module through software The Metasys or Companion Facility Management System FMS uses this address for polling and commanding The numbers are in binary format and vertically arranged with the least significant digit on the bottom For example if the controller address is 17 decimal the binary representation is 00010001 Switches 1 and 16 must be set to the On left position 1 16 17 as shown in Figure 21 Address Switches Figure 21 Setti
33. n 2 Hz 5 Total 0 to 10 VDC 10 mA 3 used by MIJ 6 Total 6 24 VAC Triacs at 0 5 amps Low or High side common selectable 38 Total 32 0 to 10 VDC signals to the MIJ 6 RTD temperature elements 1000 ohm nickel 1000 ohm platinum or silicon or 2K ohm setpoint potentiometers or 0 to 10 VDC transducers 36 Total 32 0 12 VDC tied to the MIJ 4 24 VAC input only 1 Momentary pushbutton from zone sensor for temporary occupancy mode BI 4 may be used as an accumulator input for frequencies less than 2 Hz 5 Total 0 to 10 VDC 10 mA 3 used by MIJ 6 Total 6 24 VAC Triacs at 0 5 amps Low or High side common selectable Isolated Isolated 8 pin phone jack on controller 6 pin phone jack at zone sensor 3 10 Laboratory Controls Phoenix Interface 8 pin phone jack on controller 6 pin phone jack at zone sensor Installation Procedures The PHX and its accessories are factory mounted in an EWC100 and then field mounted on the wall as described in this section Analyze the proposed installation for the best mounting location for the PHX You can find information on types of accessory devices available in the Ordering Information section of this document Installation A CAUTION You must understand and know who is responsible for all cutting into and installation of control devices in contaminated ductwork Be sure to observe all site safety guidelines and procedures when visiti
34. n Table 22 which were derived from Metal Oxide Varistors MOVs Table 22 Specifications for Suppression Devices MOVs Load Voltage 30 VRMS 130 135 250 280 VRMS 300 20 385 Continuous VRMS VRMS VRMS Voltage Rating Min Energy 8 5 Joules 30 Joules 55 Joules 80 Joules ee Joules Rating Min Peak 1000 Amps 4000 Amps 4000 Amps 4000 Amps iac Current Amps 8X20 sec pulse Laboratory Controls Phoenix Interface 3 55 Diagnostic LEDs on EXP Boards The most effective location for the suppression device is at the load since it lessens the propagation of transient energy into connected wiring which in turn becomes a source of noise to adjacent wiring Difficulties in getting access to the load however may sometimes make it necessary to locate the suppression device at the PHX Table 23 LED Operation on EXP LED Prompt Meaning LED On solid The expander failed a diagnostic test and after reporting the problem to the FHI it should reset itself and try again LED Off blinks On rapidly The expander is in normal mode Each blink On four times Pauses for 1 5 represents one message received from the FHI seconds and then with its correct slave address The first expander repeats board receives four messages from the FHI and the second board receives three messages No AO data is sent to the second expander board LED blinks 3 seconds On The expander passed all diagnostic tests and is a
35. n both W1 and W2 of the MM CVTI101 are jumpered EOL In For the Panel LTD Version Pins 1 and 2 on both W2 and W4 of the PaneVLTD circuit board must be jumpered EOL In If not jumper them and repeat the DMM readings If the voltages read are still not close to those above and after connecting the PHXs to the N2 Bus the PHXs are still not communicating replace the MM CVT101 or Panel LTD Version Companion If your readings are approximately within the ranges listed above the N2 EOL device jumpers are set correctly Reconnect the wires and then go on to Step 4 3 40 Laboratory Controls Phoenix Interface N2 Bus Terminal Block N2 Bus Terminal Block on MM CVT101 on Panel LTD Version Companion i a C ll A a EAS S a D m z z E a m JREF s DMM e EN Ctm GND EN DMM e Ne N2 to REF N2 to REF N2 to N2 2 45 to 2 98 VDC 2 06 to 2 54 VDC 0 36 to 0 92 VDC Note For best reading place probe on metal plate inside terminal not on screw VOLTAGE Figure 22 Measuring RS 485 N2 Bus Converter Circuitry 4 Power the PHX Before connecting the N2 Bus at the FHI check the voltage and polarity of the N2 DC bias voltages on the PHXs Do so by connecting the DMM without the 100K ohm resistor across N2 and REF Figure 23 Write down the reading Repeat for N2 and REF then for N2 and N2 Compare the voltages you read to the following values N2 to REF 2 45 to 2 98 VDC N2 to
36. n process is using an Delete the use of the unconfigured unconfigured point i e not listed point in the Companion process in HVACPRO SYM file PHX does not Two or more PHXs have the Change each duplicate PHX come online same address address to a unique number The address of the PHX was Cycle power on the PHX changed without its power being cycled afterward The ten minute delay after down Wait until the delay expires loading the PHX has not yet expired HVAC PRO Revision 1 0 or earlier EXP does not The MIJ sets the address for Connect the 40 pin ribbon cables come online each EXP from the EXP to the MIJ Testing the N2 You can use one of two methods to troubleshoot the N2 Bus Each of Bus these methods is described in this section Test 1 You ll need a DMM to perform this test By connecting the DMM to each Polarity Shorts N2 Bus wire you ll be able to detect polarity shorts crossed wires and Crossed Wires grounds Grounds Follow these steps referring to Figure 27 1 If you have a Companion PC Version remove the 25 pin RS 232 connection from the MM CVT101 converter This removes the fluctuating voltage due to communications and allows you to read the DC bias voltage Plug the converter s transformer into a 120 VAC source If you have a Companion Panel LTD Version or NCU make sure the Panel LTD is powered with 24 VAC and the NCU has 120 VAC 3 52 Laboratory Controls Phoenix Interface
37. nd 3 seconds Off waiting for the first message to be received from the FHI with its correct slave address You must connect the 40 pin ribbon cable to the MIJ to set the address then cycle power LED blinks 6 seconds On The expander passed all diagnostic tests and has and 6 seconds Off at one time talked to a FHI but has not received a message with its slave address in at least five seconds Verify the download file was for a PHX600 both EXP s LED Off No power to expander board Check 6 conductor cable 3 56 Laboratory Controls Phoenix Interface Johnson Controls Code Numbers PHX Interface Modules Repair Parts or Upgrade Sensors Transmitters Ordering Information The following is a list of code numbers and descriptions for the PHX and accessory equipment Code Number AS PHX200 0 2 fume hoods AS PHX600 0 6 fume hoods MIJ500 for 0 to 6 fume hoods MIJ400 for 0 to 2 fume hoods PHX connects to a Phoenix MIJ400 Controller PHX connects to a Phoenix MIJ400 or MIJ500 Controller One per PHX required order from Phoenix Controls Corporation One per PHX required order from Phoenix Controls Corporation Code Number Expander Board AS EXP100 0 Code Number EP 8000 2 Electro Pneumatic Transducer 0 to 10 VDC High Volume relay 0 5 to 19 PSIG HE 6300 Series Wall Mount Humidity 12 30 VDC Supply Transmitter HE 6310 Series Duct Mount Humidity 12 30 VDC Supply Transmitter TE
38. ng a retrofit site Failure to do so may result in dangerous exposure to contaminants Decide where the PHX can be located with adequate mounting surface and reasonable access to installation and maintenance workers Also of importance is the existence of power sources and communication lines The PHX must be secured to a solid wall and not to vibrating surface Laboratory Controls Phoenix Interface 3 11 Tools Needed Physical Dimensions Tools you need for a typical installation include HVAC PRO for Windows Revision 4 0 or greater software AS CBLPRO 1 or 2 AS ZTU100 1 optional laptop computer two screwdrivers 1 8 in and 1 4 in flat blade drill or chassis punch for conduit Digital Multimeter DMM 100K ohm 1 4 watt resistor Double banana plug optional shown in Figure 5 available from local electronics store or ITT Pomona Stock No 34F856 or 34F845 for earth ground voltage tests 100K ohm 1 4 watt ze a X Use double banana plug for all tests that require a 100K ohm resistor placed in parallel with DMM E zt Steps d 1 Connect 100K ohm resistor under plug s prongs n 2 Insert banana plug into DMM 3 Connect leads of DMM into banana plug ts BANANA Figure 5 Double Banana Plug Used with 100K ohm Resistor The PHX requires a flat mounting surface area to match its dimensions of 28 x 10 x 8 5 8 in 711 x 254 x 219 mm Hx W x D Allow enough room to install the en
39. ng the N2 Address DIP Switches Laboratory Controls Phoenix Interface 3 39 Measuring Bus Voltage This procedure allows you to test for proper voltage polarity and isolation of the following components RS 232 to N2 Bus converter MM CVT101 Steps 1 and 3 Panel LTD Version Companion RS 485 N2 Bus converter or NCU Steps 2 and 3 PHX N2 Bus Step 4 N2 Bus wiring Steps 5 and 6 Follow the steps specific to your installation l If you have a Companion PC Version remove the 25 pin RS 232 connection from the MM CVT101 converter This removes the fluctuating voltage due to communications and allows you to read the DC bias voltage Disconnect the N2 Bus wires Wire the transformer to the MM CVT101 and plug into a 120 VAC source If you have a Companion Panel LTD Version or NCU disconnect the N2 Bus wires from the Panel LTD Wire 24 VAC to the panel or power up the NCU Connect the DMM without a 100K ohm resistor across the N2 and REF inputs on the N2 terminal block of the Companion NCU Figures 20 and 21 Write down the DC voltage reading Repeat for N2 and REF then for N24 and N2 Compare the voltages you read on the DMM to the following values N2 to REF 42 45 to 2 98 VDC N2 to REF 2 06 to 2 54 VDC N2 to N2 0 36 to 0 92 VDC If your readings are not approximately within the ranges listed above the N2 EOL device jumpers are probably set incorrectly For the PC Version ensure that Pins 1 and 2 o
40. of controllers on the N2 Bus is a data base memory issue at the NCU or Companion Refer to the data base generation documents in either the Metasys Companion Technical Manual FAN 628 1 or the Operator Workstation User s Manual FAN 634 to determine practical limitations to the number of controllers on the N2 Bus The PHX N2 Bus connections are electrically isolated from other controller s circuitry to 500 V by optical and magnetic coupling For runs of up to 5 000 feet use 22 AWG twisted pair wire Runs longer than 5 000 feet require a bus repeater An N2 Network may be extended to a maximum length of 15 000 feet using two repeaters The N2 Bus is a daisy chain communications line Essentially it consists of three wires which carry three signals N2 N2 and REF The N2 and N2 lines carry the actual data signals The REF line provides a common reference so that each connected device is capable of electrically receiving and transmitting data by creating a common voltage reference among all the devices connected together by the N2 lines Three lines are required for optimum reliability It is important that the N2 and N2 lines must be twisted pair lines which allows most induced noise common mode noise from external sources to affect both lines equally thereby canceling the noise Note Do not run N2 Bus wiring in the same conduits as line voltage wiring 42 VAC or above or wiring that switches power to highly inductive loads suc
41. onnected to the N2 Bus and powered up Voltage from N2 to N2 0 36 to 0 92 VDC DMM probe on N2 terminal DMM probe on N2 terminal Voltage from N24 to REF 2 45 to 2 98 VDC DMM probe on N2 terminal DMM probe on REF terminal Voltage from N2 to REF 2 06 to 2 54 VDC DMM probe on N2 terminal DMM probe on REF terminal 3 34 Laboratory Controls Phoenix Interface Proper EOL Settings If the difference from N2 to N2 is greater than 0 36V your system should be able to communicate If communication is taking place voltage on the N2 Bus fluctuates and therefore the DMM will read these fluctuating voltages An oscilloscope provides a more accurate reading Setting the EOL terminations correctly on the devices connected to the N2 Bus is crucial to proper and reliable communication Follow these rules e Always set the EOL jumpers to In position 1 2 for the Companion PC or Panel LTD This device is always set as end of line because all the ASCs controllers on the N2 and the PHXs are self terminating they do not have EOL jumpers e If possible terminate the two devices that are at the far ends of the N2 Bus e One device on the bus must be terminated Jumper it as an end of line device During commissioning visually check the N2 EOL jumpers at the NCM Companion PC or Panel LTD Refer to the PC Version Companion and Panel LTD Companion Technical Bulletins in the Metasys Companion Technical Man
42. plugs 24 Gauge 100 feet 889324 8 conductor Solid Wire Use the following table to order cable components for creating your own cables Part Number 1000 Foot Roll of Non plenum Rated CM 00424BAG 3 24Gauge 8 conductor Solid Wire 1000 Foot Roll of Plenum Rated CMP 00424SAC 3 24 Gauge 6 Conductor Solid Wire 8 Position Non keyed Plugs for Solid 074683 Stewart Cable bag of 25 Hand Tool with 8 Position Die Set for 060612 Solid 24 Gauge Wire Laboratory Controls Phoenix Interface 3 59 J amp HNSON CONTROLS Controls Group 507 E Michigan Street P O Box 423 Milwaukee WI 53201 3 60 Laboratory Controls Phoenix Interface Notes FAN 595 1 Laboratory Controls Manual Printed in U S A
43. r or ow To make all of the necessary wiring terminations between the PHX and TE 6400 Metastat or TE 6100 11 or 12 Zone Temperature Sensors use phone cable that has pre terminated 8 pin RJ 45 connectors These cables are available from Anixter Connect one end of the cable to the Zone Bus connector on the controller and the other end to the 8 pin connector on the back of the Metastat Laboratory Controls Phoenix Interface 3 27 In addition to the 8 pin RJ 45 connection the TE 6100 and TE 6400 sensors also have a 6 pin RJ 12 connection under the cover This allows remote connection of the Cable PRO used during commissioning or the Zone Terminal used for system monitoring For best results mount the Zone Terminal on the outside of the laboratory to display alarms hood flows and lab pressurization Use AS CBLCON 0 to permanently connect a ZT to the PHX with a Metastat See Figure 13 Connect FHI here Switch must be in CONCT2 Figure 13 Example of a Permanent ZT Connection 3 28 Laboratory Controls Phoenix Interface Phone Jack Polarization Figure 14 illustrates the polarization of the 6 pin and 8 pin phone jacks on the FHI or Metastat Terminal 1 is to the extreme left as you face the jack opening tab notch down P L phonejk Figure 14 Phone Jack Polarization The following table defines the pin usage for e
44. rols literature is available only to individuals who have completed certification courses with the Phoenix Controls Corporation If you require further information specific to Phoenix Controls Corporation and have not completed the certification courses you must contact a Phoenix representative or the Phoenix Regional Sales Manager For information on configuring and commissioning the AS PHX Controller refer to the Phoenix Lab and Fume Hood Interface document in the HVAC PRO for Windows User s Manual Laboratory Controls Phoenix Interface 3 3 Definitions Phoenix Lab and Fume Hood Interface Module PHX Makeup Air Controller Interface to Johnson Controls MIJ How They Work Together Two devices connect the Phoenix system to Johnson Controls Metasys Companion Facilities Management System These devices are defined below The first device the Phoenix Lab and Fume Hood Interface Module is a monitoring device for the Phoenix Controls laboratory airflow controls The module is manufactured by Johnson Controls Inc and referred to as PHX200 or PHX600 Included with the PHX e The EXP100 and the FHI100 0 are included as necessary within the PHX200 or PHX600 e The Expander EXP100 is an analog to digital converter that monitors the analog and binary inputs from the Phoenix Controls Corporation MIJ board The Fume Hood Interface FHI100 0 collects data from up to two EXPs The data is then communicated to the Metasy
45. s MIJ Features Table 1 MIJ Series 400 500 Features and Options Series Max Number of Fume Hoods 6 General Exhaust Return Valve Control Dedicated Canopy Snorkel etc Valve s NO YES Exhaust String Switched Exhaust Supply Input Additional Exhaust Supply Input Emergency Exhaust Override Command YES YES Vent Purge Location PHX200 PHX200 or PHX600 YES Single Exhaust Hood Inputs 1SE 6SE 3 8 Laboratory Controls Phoenix Interface Branch Certification Controller Specifications Commissioning the MIJ400 or MIJ500 Controller requires factory certification from Phoenix Controls Only individuals who have successfully completed certification training at Phoenix Controls Corporation are qualified to install and commission Phoenix Controls MIJ Controllers This manual does not replace Certification For information specific to Phoenix Controls Corporation refer to their Engineering Guide Laboratory Airflow Controls The Phoenix Controls literature is available only to individuals who have completed certification courses If you require further information specific to Phoenix Controls Corporation and have not completed the certification courses you must contact a Phoenix representative or the Phoenix Regional Sales Manager Note You do not require certification from Phoenix Controls to install or commission the AS PHX Controllers The table below lists the specifications for the FHI Table 2 FHI Sp
46. s Network or Companion via the N2 Bus The second device the Phoenix Interface to Johnson Controls controls the laboratory supply and exhaust airflow All of the fume hoods and valves connect to this board It is manufactured by Phoenix Controls Corporation and referred to as MIJ400 for up to two hoods or MIJ500 for up to six hoods The PHX made by Johnson Controls is fully supported by Metasys Release 5 0 or greater Companion 4 0 or greater and the Zone Terminal AS ZTU100 1 The PHX monitors the various signals from the Phoenix Controls MIJ The PHX also controls the thermal demand of the lab The MIJ made by Phoenix Controls controls all lab supply and exhausts for complete fume hood and lab pressurization control Both devices are factory calibrated The MIJ board is purchased separately from Phoenix Controls Corporation Together the devices communicate laboratory airflow conditions to each other and to the Metasys Network thus providing a constant and safe laboratory and fume hood environment Note The PHX is completely standalone and does not require the N2 Bus to control laboratory airflow 3 4 Laboratory Controls Phoenix Interface 120 VAC PN Power Input Output and Switch Wire Trough 120 24 VAC Transformer to i Power AS FHI Controller l 15 VDC Power Supply E Beneath MIJ Not Shown to Power Phoenix MIJ Controller Single Slot MIJ 500 Board shown
47. the N2 Bus is not functioning properly Note Atthe dead time between messages you can measure the bias voltage In this figure it is 0 4 VDC 3 54 Laboratory Controls Phoenix Interface Suppression Devices Factors that can cause improper signal levels are e N2 Bus wires are not polarized correctly 1 e wires are reversed e N2cable runs are too long e PHX has malfunctioned e N2 Bus is improperly terminated e g EOL jumpers configured improperly e N2 Bus contains too many devices loading down the bus e N2 Bus wiring has T or Y connections installed Check all wiring and devices to pinpoint the problem Replace parts if necessary In general a proper PHX installation will not require the use of a suppression device If problems resulting from noise are encountered you must identify the offending devices and install suppression devices For example the switching of inductive loads can generate transients that can be conducted and or radiated into the circuits controlling those loads as well as into other circuits nearby For inductive loads the recommended suppression device is the ACC 22 for 12 to 120 VAC For the N2 Bus the recommended suppression device is the Transient Eliminator model TE JC04C12 made by Advanced Protection Technologies APT Besides these recommended devices you may find a different device that has the same capabilities The device must meet or exceed the specifications i
48. these tests you may be able to determine the cause of the problem by asking yourself the following questions Are the N2 Bus wires securely terminated to each FHI Is the N2 polarity correct Is the PHX powered and ready to respond Are the end of line device settings correct Have you cycled power on a PHX after changing its address Is the W3 loop back jumper on the Companion Panel LTD fully pushed down on Pins 1 and 2 Are the PHXs configured properly with the correct number of points Lastly this section describes the diagnostic LEDs on the PHX A CAUTION To avoid electrical shocks when troubleshooting always measure the REF to earth ground voltage with the DMM If line voltage is measured have a qualified electrician locate the fault Laboratory Controls Phoenix Interface 3 51 Troubleshooting Table 21 Troubleshooting Chart Symptom PossibleCause Action N2 Bus is EOL jumpers and or W3 jumper Install EOL jumpers and W3 jumper offline on MM CVT101 or Companion properly Panel TD are not installed MM CVT101 is not plugged into Plug MM CVT101 into PC or plug it PC or 9 VDC source into a 9 VDC source N2 Bus polarity is incorrect Rewire N2 Bus wires for proper polarity PHX cycles A read only point is defined in the Delete the AO or BO point and read online and Companion data base as a it as an Al or BI point to the offline read write point AO or BO Companion data base A Companio
49. transient suppressers protect the circuitry In most installations the N2 Bus works fine with unshielded cable However in noisy environments such as near gas ignition devices and arc welders shielded twisted wire must be used otherwise the noise disrupts N2 communications and the PHXs The PHX N2 Bus is self terminating and has the bias voltage permanently applied to the N24 and N2 lines through 100K ohm resistors The PHX has opto isolation of the N2 Bus to the earth ground Refer to the N2 Bus Troubleshooting Overview section of this document for more details The N2 Bus uses End of Line EOL terminations through the use of jumpers on the Companion Panel LTD RS 232 to N2 Bus converter MM CVT101 and repeater N2 Bus circuitry in the PHX is self terminating Figure 16 shows an electrical drawing of the end of line wiring for the MM CVT101 and the Panel LTD Version Companion Gy Ek E By ates Vi ne re E ata t SS EOL Switch A 5 VDC 1 9 z 1200 ohm N2 O Z2 DES eee A I t WIEMM CVT101 d ASC W2 Companion Panel LTD i N P pU S NW SR HoT 5 2e a t t p C j 2 DE 3 S ohm We d n o ie we potestas Bots Qe bot Rive os De oe d N24 O I qm W2 MM CVT101 PRC Microprocessor W4 Companion Panel LTD x 1200 ohm REF EOLWIRE2 Figure 16 End of Line Wiring for MM CVT101 and Panel LTD Version Companion Laboratory Controls Phoenix Interface 3 33 Figure 17 s
50. troller 15 VDC Power Supply Beneath MIJ Not Shown to Power Phoenix MIJ Controller Single Slot NCU Enclosure MIJ 500 Board shown From Phoenix Maintains Lab Pressurization EXP for 3 to 6 Hoods PHX600 PHX200 does not contain this board EXP for 0 to 2 Hoods PHX200 Converts analog voltage from MIJ to digital voltage for FHI and digital voltage from FHI to analog voltage for MIJ FHI Controller e Temperature Control Humidity Control e Provides Interface to the N2 Bus Figure 8 Mounting the MIJ500 Laboratory Controls Phoenix Interface 3 15 Wire Trough Single Slot NCU Enclosure n FHI Controller Temperature Control Humidity Control Provides Interface to the N2 Bus 120 VAC Power Input Output and Switch 120 24 VAC Transformer to Power AS FHI Controller 15 VDC Power Supply Beneath MIJ Not Shown to Power Phoenix MIJ Controller MIJ 400 Board From Phoenix Maintains Lab Pressurization EXP for 0 to 2 Hoods PHX200 Converts analog voltage from MIJ to digital voltage for FHI and digital voltage from FHI to analog voltage for MIJ Figure 9 Mounting the MIJ400 3 16 Laboratory Controls Phoenix Interface Wiring Guidelines Precautions Wiring Details Thre
51. tuator 6 min 24 VAC Triac Incremental EDA 8x0x Direct Mount Damper Actuator 24 VAC Triac Incremental or Proportional 0 10 VDC AV 8090 Valve Actuator Assemblies 24 VAC Triac 1 1 2 in to 2 in Incremental AV 8091 Valve Actuator Assemblies 24 VAC Triac 1 1 2 in to 2 in Incremental w Feedback AV 8092 Valve Actuator Assemblies 0 to 10 VDC 1 1 2 in to 2 in M100C Series Zone Bus Damper Actuators Zone Bus Addressable M100E Series Standalone Economizer Proportional Economizer Actuators Motor Actuator M100G Series Proportional Damper Actuators 0 to 10 VDC Accessories Code Number AS CBLPRO 1 or 2 HVAC PRO Cable AS CBLCON 0 ZT Adapter Three 6 pin and two 8 pin with a ZT switch WS SWHPRO 004WINPRO HVAC PRO for Windows N A 0 Software Software WS WINPRO 6 HVAC PRO for Windows N A Software Upgrade 3 58 Laboratory Controls Phoenix Interface Vendor Code Numbers The following is a list of code numbers and descriptions for PHX equipment requirements All listed equipment is available from Anixter 2201 West Main Street Evanston IL 60202 1 800 792 1207 1 800 942 1664 in Illinois Use the following information to order preconfigured cables from the factory Cable Length Part Number RJ45 Straight Thru Cable 25 feet 889158 Assembly Non plenum Non keyed plugs 889161 24 Gauge 100 feet 889166 8 conductor Solid Wire RJ45 Straight Thru Cable 25 feet 889315 Assembly Plenum Non keyed
52. ual e For the NCM DCM or XM a minimum of one end of line switch per bus must be set to IN e For the Panel LTD version the end of line jumpers are located on the Panel s circuit board W2 and W4 e For the PC version the jumpers are located on the MM CVT101 W1 and W2 e For the repeater the jumpers are found under the top cover To illustrate different possible EOL terminations consider the following examples in Figures 16 through 18 Laboratory Controls Phoenix Interface 3 35 Example One Figure 18 In this example the N2 Bus begins at the PC Panel LTD Companion and connects several PHXs This is the simplest network and requires only that the PC Panel LTD is set as the end of line device Companion Pane LTD Version Companion PC Version or m je M WE vovo Panel EOL In Converter EOL In N2 Bus i Self Termination Self Termination Self Termination EOLS1 Figure 18 Example One Companion PC Panel LTD Terminated 3 36 Laboratory Controls Phoenix Interface Example Two Figure 19 In Figure 19 the N2 Bus has a row of PHXs If the Companion PC or Panel LTD is somewhere in the middle of the N2 it would have its EOL jumpers set to the In position even though this device is not physically at the end of line This is because at least one j
53. umpered EOL is needed per bus Companion Panel LTD Version Companion PC Version BH Panel EOL In E MM CVT101 Converter EOL In a T yp Ia ASC ASC ASC ASC ASC Self Termination Self Termination Self Termination Self Termination Self Termination EOLS2 Figure 19 Example Two Companion PC Panel LTD Terminated Laboratory Controls Phoenix Interface 3 37 Example Three Figure 20 In the third example Figure 20 a repeater is placed near the middle of the N2 Bus Side A of the repeater has its EOL set to Out but side B has its EOL set to In since its segment needs a jumpered EOL Also the Companion PC or Panel LTD has its EOL jumpers set to In Companion Panel LTD Version Companion PC Version A EOL Out or EN m NNNM MM CVT101 Converter EOL In Self Termination N2 Bus ASC ASC ASC ASC Self Self Self Self Self Termination Termination Termination Termination Termination EOLS3 Figure 20 Example Three Repeater Used on N2 Bus N2 Bus Rules The following table summarizes the rules and maxi
54. ur readings are not approximately at these values that particular wire is grounded shorted or crossed with another wire Correct and measure again If your readings are within these values the bus is properly wired Laboratory Controls Phoenix Interface 3 53 Test 2 You can use an oscilloscope to pinpoint communication faults over the Using the N2 Bus The procedure requires a 2 channel scope with an A minus B Oscilloscope e lt function or an A plus B with B inverted function Follow these steps 1 2 Plug the scope into a grounded electrical outlet Set both channels to 2 volts per division Both channels must have the same gain or volts per division setting With no signal applied adjust each channel s vertical position at the same graticule on the screen i e center screen Select the channel A minus B function If your scope does not have this function select the Add function channel A ADDED to B then INVERT channel B Select the 0 5 mS horizontal range mm Imm fu Im LL Lf sto 10 ep including 0 4 VDC bias Ch 1 2 V div SCOPESG T div 5 mS Figure 28 N2 Bus Signal as Measured with Oscilloscope Connect channel B to the N2 wire and connect channel A to the N2 wire Do not use the oscilloscope ground lead Compare the signal you measure with the wave form in Figure 28 They should resemble the figure A signal outside this range indicates that
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