Installation Bulletin: IRDH375
Contents
1. Settings option only available with IRDH375B 2 Alarm1 1 kQ 10 MQ 3 Alarm2 1 KQ 10 MQ gga N C N O Flash 5 K2 N O T N C T N C N O Flash 7 M M 0 20 mA a 4 20 mA no 150 204 520S 150 500 24 no 01 6 Clock 00 00 i 7 Date i ddmmyy 8 Test 00 00 28 00 2 Addr i 1 80 3 ISONet fon off 4 ISO Monitor 1 30 000 999 2 Text English Deutsch 8 SERVICE Figure 5 IRDH375 menu flow chart Dimensions Dimensions in inches mm Panel cutout required is 5 4 x 2 6 138 mm x 66 mm Panel cutout 5 4 x 2 6 138 x 66 5 7 144 0 5 0 35 13 9 Figure 5 IRDH375 dimensions in inches mm Bender Inc e USA 800 356 4266 610 383 9200 info bender org Canada 800 243 2438 905 602 9990 info bender ca com www bender org IRDH375 Installation Bulletin Reference Guide Front Panel Display BENDER 4 A ISOMETER Insulation Fault R 010KQ F ESC A H DN vy 4 nro sr ser ant Y JJ 2 3 4 5 E SSS _ N 1 INFO ESC key Displays system infor 5 LED ALARM 1 IIluminates when alarm mation goes back a step in menu 1 is active 2 TEST UP key Initiates self test moves 6 LED ALARM 2 Illuminates when alarm up in menu 2 is active 3 RESET DOWN key Resets device when 7 latching mode is active moves down in menu 4 MENU ENTER key Opens the main menu confirms changes in menu LED2. 74 BENDER The Power in Electrical Safety IRDH375 Installation Bulletin Reference Guide This document is intended as a reference guide for installing and using a BENDER IRDH375 ground fault detector This document includes installation setup and usage instructions For complete de tails including installation setup settings and troubleshooting refer to the IRDH375 user manual document number TGH1352en This document is intended as a supplement and not a replacement to the complete user manual Only qualified maintenance personnel shall operate or service this equipment These instructions should not be viewed as sufficient for those who are not otherwise qualified to operate or service this equipment This document is intended to provide accurate information only No responsibility is as sumed by BENDER for any consequences arising from use of this document Installation Mounting The IRDH375 is a panel mounted device When mounting use a cutout of 5 4 x 2 6 138 mm x 66 mm See reverse side for dimensions Wiring See figure 1 for basic wiring schematic The IRDH375 uses plug in terminals located on the back of the device Line connections L1 and L2 may use the schematic be low for systems below 793 VAC or 650 VDC For higher voltages a voltage coupler is required See section Wir ing Voltage Couplers on additional requirements for wiring into system connection terminals Use minimum AWG 24
3. maximum AWG 12 wire For more information refer to the IRDH375 user manual DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH e Disconnect all power before servicing Observe all local state and national codes standards and regulations 39 AC System 19 AC System a 2 2 2 R zal BA BA BA 10 ppp g S 485 fl d Pr 6 8 5 S2 S1 N OFF Figure 1 IRDH375 wiring diagram with no voltage coupler 1 External supply voltage w fusing 9 Analog outputs 0 400 uA on standard 2 Connection 30 AC system version 0 4 20 mA on B version 3 Connection 18 AC system 10 RS 485 interface 4 Conn DC system 11 Alarm relay K1 SPDT contact 5 Equipment ground connection 12 Alarm relay K2 SPDT contact 6 External TEST terminal N O contact 13 Alarm relay K3 SPDT contact 7 External RESET terminal N O contact 8 STANDBY terminals Closing F1 F2 will stop measurements Wiring Contacts Using a normally closed or normally open contact utilizes two factors wiring out of the proper terminal and setting the respective contact to normally energized or deenergized operation Refer to the chart below for relay conditions Changing the energized state of the contact is done via the ISO SETUP gt K1 and ISO SETUP gt K2 options found in the main menu The factory default for relays K1 and K2 is normally deenergized operation Device Relay Conditions Relay Operation Setting Device Ala
4. ERROR IIluminates when a device error has occured Analog Outputs Standard IRDH375 models feature a 0 400 uA analog output based on the measured insula tion resistance IRDH375B models feature a 0 20 mA or 4 20 mA output selectable in the main menu under ISO SETUP gt M M For integrating the analog outputs into control sys tems refer to the equations below for the type of analog output being used 0 400 pA output Re 400 pA x 120 kQ 120 kQ R Insulation resistance in kQ l Current output in pA 0 20 mA output Re 20 MAX 120kQ _ 120 KQ R Insulation resistance in kQ l Current output in mA 4 20 mA output 16 MAX120kQ 120 KQ R Insulation resistance in KQ F l 4mA Current output in mA Ordering Information Supply voltage U RS 485 interface Analog Output Type 88 264V 42 460 Hz 77 286V IRDH375 435 a 0 400 pA z 19 2 72V IRDH375 427 E 10 2 36V IRDH375 425 88 264V 42 460 Hz 77 286V IRDH375B 435 eas se 0 4 20 mA F 19 2 72V IRDH375B 427 z 10 2 36V IRDH375B 425 0 Absolute values All versions support adding option W added to the end of the part number adding additional shock vibration protection and wider temperature range Technical Data Refer to IRDH375 series user manual document TGH1352en or IRDH375 series datasheet document NAE1012050 for detailed technical information Document NAE1018051 08 2013 e Benderlnc e Page1 1 e Side 2 2
5. ing Ensure that the menu option ISO ADVANCED gt AGH is set to 150 See reverse side for more information 0000 AGH150W 4 Achtung Hochspannung Danger High Voltage Figure 2 IRDH375 system wiring diagram when using AGH150W 4 Wiring IRDH375 and AGH204S 4 The AGH150W 4 is used on AC systems up 1650 V Use figure 3 below for wiring Ensure that the menu option ISO ADVANCED gt AGH is set to 204 See reverse side for more information L1 L2 L3 Figure 3 IRDH375 system wiring diagram when using AGH204S 4 Wiring IRDH375 and AGH520S The AGH520S is used on AC systems up to 7200 V Use figure 4 below for wiring For systems without neutral connect to L1 Otherwise connect to the neutral Ensure that the menu op tion ISO ADVANCED gt AGH is set to 520S See reverse side for more information Un 3 N AC 50 400 Hz 0 7200 V Figure 4 IRDH375 system wiring diagram when using AGH520S Document NAE1018051 08 2013 e Benderlnc e Page1 1 e Side 1 2 74 BENDER The Power in Electrical Safety Menu Structure Flow Chart Figure 5 shows the structure of the menu built into the IRDH375 The menu is used for viewing alarms viewing the status of the system and making any necessary settings changes Use the supplied gray boxes to take note of applied settings for future reference P Menu or settings option P Settings option essential for proper operation r
6. rm State K1 STATE K2 STATE 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power ON normal state no alarms 71 24 OPEN Normally deenergized mode N D Non failsafe mode N O in device settings menu 11 12 CLOSED 21 22 CLOSED Energized in the alarm state Power OFF 11 14 OPEN 21 24 OPEN Relay will switch when the alarm is activated 11 12 OPEN 21 22 OPEN Power ON alarm state 11 14 CLOSED 21 24 CLOSED 11 12 OPEN 11 14 CLOSED 21 22 OPEN 21 24 CLOSED Normally energized mode N E Failsafe mode N C in device settings menu Power ON normal state no alarms 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power OFF 21 24 OPEN Energized in the normal state Relay will switch when the alarm is activated or when supply voltage to the device is lost 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power ON alarm state 21 24 OPEN Bender Inc USA 800 356 4266 610 383 9200 info bender org Canada 800 243 2438 905 602 9990 info bender ca com www bender org A ISOMETER IRDH375 Wiring Voltage Couplers System voltages greater than 793 VAC 650 VDC require an additional voltage coupler in stalled inline between the IRDH375 and the system Figures 2 through 4 show wiring schemat ics for the various available voltage couplers Locate the wiring diagram utilizing the correct voltage coupler Wiring IRDH375 and AGH150W 4 The AGH150W 4 is used on DC systems up to 1600 V Use figure 2 below for wir
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