Peak/Valley Hold Unit (PVHU) User Manual
Contents
1. A RR 1 Py n al lt gt i3 m Th Per i E 4 d Ho m M A b PA AS 9 t paras S VAN 1 LM 1 Ss E Unit PVHU User Manual V3 00 Part Number DO UM0084 30 UE Applies to Firmware Version V3 01 Reference Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 Peak Valley Hold Unit PVHU User Manual Contents GENEL DESE eem TT TET UE 3 ADDICION NT ee ee eee eer ee 3 FONCIONA TIAL AIM EE RR TRETEN 4 EXIME OD ON SS erin ciangiavenmndisseacnniaacianianeagnenesanandanns 4 Eo e SAO RTT Tm 5 ADDIIGATION 6 E Nai 6 OSCIIOSCODE PICTUS cuesataxakksdoqukRERM ARUM ARRETREEAUREPI D UIROPIaPUIREUMR Dd RaX TAM ROPA T COPS 7 8 DIP SW1 Run Operational Settings sss 9 COMMOUPAUOM MOOG c 10 Resetting to Factory Defaults ss 11 Trimming of Outputs Zero and Span Adjustment sss 11 HOU IR ANIG SS CIS CHOM M E 11 OU LEONG SE 2 e 0 ee nee ee ee EP DUDEN EMEN 12 PAMVAIO GUS OUR S E U eE ie gennunnsaneasasiacassersasatuateiaiassensens 12 MPULLED SEUD a ne ee 12 Analogue Output eens 12 DIONA OUP i 12 SBE CONOR O O E E2. 70 C Power On Status green LED Plug in screw terminals which can accommodate wire up to 2 0 DIN rail mounting enclosure 22 5 x 100 x 113 mm width x length top to bottom x height off DIN rail Approximate weight 100 g Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 13 of 14 User Manual The latest version of this User Manual can be found at http www danntech com user9e20manuals Peak Valley 20Hold 20Unit 20 PVHU 20User Manual pdf or by scanning in danntech ltd Co No 6510211 15 College Close Hamble le Rice Southampton Hampshire S031 4QU United Kingdom Tel 075 9069 1824 e mail sales danntech com www uk danntech com www danntech com danntech cc Reg No CK1986 15338 23 Tel International 27 11 7921239 Tel National 011 7921239 Fax International 27 11 7924687 Fax National 011 7924687 e mail sales danntech com P O Box 1023 Fontainebleau 2032 Republic of South Africa www danntech co za www danntech com Danntech makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Danntech shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material This document contains proprietary in
3. E O IR EEE E E E NR I E E M NURPADI 13 SEL M AU c NICO 14 Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 2 of 14 General Description The Peak Valley Hold Unit PVHU has been designed to provide a way of capturing fast random or transient events for process measurement and control Usually only high speed and expensive process systems or PLCs are able to monitor and capture these inputs EcL OHNE EN UM The PVHU has one input and two outputs which can be used ENG Power IN Analog In to capture the maximum peak and minimum valley values of the input signal The PVHU captures the maximum and minimum values and holds these values until either another maximum or minimum value is detected or the RESET TIME expires The Reset Time can be adjusted from 0 to using a trimpot in three ranges 4 to 100 mS 4 to 1000 mS and 4 mS to 10 S There is an 4 4 mp Additional option to hold the peak and valley outputs until an Reset Time external digital input resets the captured values Adjustment Trimpot P alarm LEDs Status LED Input LED Peak LED The PVHU has four way galvanic isolation of 1000 VDC between the Power In the input and each output The outputs DIN 2 LED are isolated from each other E A variety of standard signal inputs and outputs can be m accommodated Push Button PB Current DC 4 20
4. Output Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 8 of 14 DIP SW1 Run Operational Settings Table 1 Dip Switch SW1 Settings in Run Mode coloured background indicates settings as shipped Description Default Setting Zero Span and Reset Time Trimpots Enable Enables the operation of the trimpots on the front panel You can enable the trimpots make your adjustments and then when you disable the trimpots the values that you last adjusted are saved and used until the trimpots are enabled again OFF trimpots disabled ON trimpots enabled Zero and Span Normal Wide Range Adjustment Select Provides normal and wide trimpot adjustments for Zero and Span OFF Zero and Span adjustment are normal i e approx 10 over full trimpot range ON Zero and Span adjustment are wide i e approx 50 over trimpot range Note that you may need to adjust zero and span several times to get the best accuracy Filtering Select oelects the moving average input filter length Time No filtering input OFF OFF response approx 0 2 mSec 1 mSec Reset Range Select Value set using RESET trimpot on the front of the unit Reset Time Range OFF ON 4 mSec to 1 Sec FF ON Only reset using Digital Inputs Relays Opto Outputs Enable this feature not implemented yet OFF Relays Opto Outputs Disabled uil ON Relays Opto Outpu
5. 2 0 OE MA E TA A A ju dah y 1 wif AA s 20 18 16 Output mA I mb N Input V 3 O 06TT qdT u n zzoWy Jd e tM 0 4 4 1 Valley Output i 0 0 r 0 1 0 0 400 450 i Pest Digital Outputi switches ON when Reset Tinie 20 mSec nput gt Peak Setpoint Hysteresis and Peak 4 L a OFF when Input Peak Setpoint Hysteresis Relay ON Opto Output QEF 20 6 Valley E a 1 k Relay ON Opto OFF Output Relays Opto Outputs Valley Digital Output switches ON when stay on for the Reset Time Input lt Valley Setpoint Hysteresis and OFF when Input Valley Setpoint Hysteresis 24 VDC DOUT1 i3 DOUT 1 fa DOUT 2 4 Way Plug In Bottom Back To PLC Digital Inputs Optos can switch up to 30 mA at up to 50 V Filename Peak_Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 5 of 14 Simulated input signal constructed from data captured on site by the customer and sent to us for testing E 7 9 File Edit View Waveform Maths MO control Window Help E WaveMen sigma 1 wfm Status sigma 1 w m Start 0 Value 0 End 4095 Value 0 Length 4096 Default File Type Waveform Manager vtm files Upload from Tektronix TDS210 vie GPIB addre
6. can be 4 20 mA and the Valley output could be 5 V Galvanic isolation between input power supply and each output gt 1000 VDC DC supply required 12 or 24 VDC 5 10 at 100 mA max Typical step response time input to output less than 0 2 mS Split rail powered input circuit to accommodate input signals from 100 V down to 100 mV or 100 mA down to 100 Standard process signal inputs available 0 10 V 0 5 V 0 2 V 10 V 0 20 mA 4 20 mA Also factory configured currents 0 1 A 0 5 0 10A AC or DC Input impedance standard for voltage inputs at 100 kO but can be arranged to be 1 MO if required Input impedance is 50 O for mA current inputs DC coupled input signal as standard but can be arranged to be AC coupled if required Analogue input resolution 0 1 of input range Input sampling and processing frequency approximately 10 kHz 100 uS Minimum input pulse width for reliable detection 0 2 mS Split rail powered output circuit output signals from 12 V down to 100 mV Output current for voltage output option at 5 mA Output current range for current output option from O to 22 mA Analogue output resolution 0 05 of range Overall accuracy better than 1 of range Output trimpot zero and span adjustments for each output on front panel Reset time adjustable using trimpot beneath front panel from 0 to 100 of the selected range Operating temperature 10 C to
7. formation which is protected by copyright No part of this document may be photocopied reproduced or translated into another language without the prior written consent of Danntech The information in this document is subject to change without notice Filename Peak_Valley Hold Unit PVHU User Manual docx danntech PROCESS INSTRUMENTATION 2016 Date 30 May 2016 Version 3 00 Page 14 of 14
8. lication note Monitoring of rotor alignment in rotating machines using valley detection Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 3 of 14 Functional Diagram Comms 24 VDC RS232 TTL Canbus LS Power Power Switches e m amass Isolation Current pee tor EE fo Output 1 Output 2 Source j POWER INPUT IN STATUS STATUS 1 r LED e Ll Config 1 DIP i i Galvanic Isolation L Micro E ey 3 I Controller Qo A E Ae 5 0 n ojeuy Config I ue Digital I O DIP I Switches Galvanic Isolation Firmware Config Config LEDs DIP Switches Digital i Digital Inputs Hk Outputs Butler Nd f Relay PB Link I Outputs PB J2 Example Operation Noise Filter Off 40 0 IT 650v 14 9994 Hz These oscilloscope traces show the input signal in yellow with the Peak Output in blue and the Valley output in purple This shown is an example of the outputs one can expect for a fairly high frequency input signal with a fairly short reset time in this case approximately 20 mS Filename Peak_Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 4 of 14 Typical Operation
9. mA 0 20 mA factory installed options are 0 1 A 0 5 A and 0 10 A Loop power available at 15 V 22 mA for loop powered Front bottom Plug In Screw transmitter inputs Terminal Connectors Voltage DC 0 100 mV 0 1 V 0 2 V 0 10 V 0 30 V 0 100 V Rear bottom Plug In Screw Peak Output Valley Output Terminal Connectors and 10 V Relay 1 Output Relay 2 Output Resistance 0 100 O 0 1 kO 0 10 kQ There is also an option to be able provide 15 V at 30 mA to supply power for a loop powered input sensor or transmitter The outputs can be different from each other and also different to the input so the unit can effectively perform signal conversion and isolation functions as well Special input and output ranges can be provided by arrangement The unit has two analogue outputs with various options Current DC 4 20 mA 0 20 mA Voltage DC 0 100 mV 0 1 V 0 10 V 10 V As well as some digital I O options o Relay Outputs optional Two alarm relay outputs 30 VDC at 1 A 125 VAC 0 3 A a Digital Outputs optional Two opto isolated transistor outputs up to 50 V at 40 mA maximum a Digital Inputs optional Two opto isolated digital inputs 30 V maximum at 5 mA Applications amp Fast pulse stretching so that transient events can be captured by standard slower controllers or PLCs 4 Accelerometer peak level capture for machine condition monitoring Hydroelectric turbine generator pole temperature estimation see app
10. o the next output without capturing the trimpot adjustments If you wish to adjust the zero and span and capture the new values press the PB for about 1 second until A2 comes on and then release this will capture the new trimpot values for the Peak Output and move on to the Valley Output Repeat until both the outputs are done When the Valley Output is done the unit goes back into the Run mode Input Range Selection DIP Switch SW1 0 20mA OFF ON ON OFF OFF OFF OFF Input J3 in R2 6200 OV 0 2 J3 in R2 1 1kQ Filename Peak_Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 11 of 14 For self powered mA input normal operation J1 A J2 A For loop powered mA input with fused 15 V supply J1 B J2 B Output Range Selection Information to follow Analogue Input Setup Information to follow Input LED Setup Information to follow Analogue Output Setup Information to follow Digital Output Setup Information to follow Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 12 of 14 Specifications One analogue input two isolated analogue outputs one for Peak maximum value and the other for Valley minimum value Input and each output can be configured differently if required For example the input can be O 10 V the Peak output
11. ss 5 ownlosdto TTi TGA1230 vie GPIB address 5 Yellow trace is the simulated input signal the blue trace is the Peak Output and the purple trace is the Valley Output The Reset Time in this example is about 20 mS 1051011 2222277777700 DESEE 4 5 33 8 rms 332 V ie 1 EXSTITIT V f Tm IT 0 24 9811 He 2n v 35 The same results as above with the traces separated to show more detail 8 l ms l 3ms EIE enn mmm IT NES 32 1427 Hz 1 2 00 v 3 BU mee width IE Filename Peak_Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 PROCESS INSTRUMENTATION 2016 Page 6 of 14 Capturing a single pulse which is 200 uS duration YS Bun Trig d mM 001 1 Zoom Factor SU Noise Filter Off z 5 lt 10 Hz a s T Peak and Valley Outputs for sine wave input Tek PrTrig D EM M 34 SE FRE O a rns IT 73 60 163 443 Hz 1 00 MBit pturing NoiseFilter Off Repetitive peak and valley ca A BGO 28 5717 Hz 200 erdt 2214s Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 PROCESS INSTRUMENTATION 2016 Page 7 of 14 Connections More information to follow Bottom View Peak Relay Output Peak Value Output Valley Relay Output Valley Value
12. tion Outputs at absolute minimum DAC output 0 Outputs at 096 Outputs at 50 Outputs at 100 Outputs at absolute maximum DAC 1 2 output 4095 Digital Output Setup 4 4 Input LED Setup oe ENC 7 Outout2catbrate _ o Run or Configuration Mode Select OFF lt Run OFF ON Configuration Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 066 8 660 PROCESS INSTRUMENTATION 2016 Page 10 of 14 Resetting to Factory Defaults Sometimes this is necessary if one gets things confused To do this switch all SW1 switches ON except SW1 8 then press the PB for gt 2 seconds The factory defaults areas shown in the Table 2 Configuration Mode DIP Switch SW1 settings not yet implemented in V3 01 Trimming of Outputs Zero and Span Adjustment If the Zero and Span Trimpot are enabled i e SW1 1 is ON in the RUN Mode the outputs Zero and Span can be trimmed Can only be done in the Run Mode This is done by pressing and holding the Push Button PB for one second or more until the A2 LED first comes on and then shortly after the A1 LED illuminates this then sets the unit into the Output Trim mode if SW1 1 is OFF nothing will happen The Peak LED will be on Now you can trim the Peak Output Zero and Span using the trimpots If you wish to move to the Valley Output without changing the Peak Output just press the PB briefly this moves on t
13. ts Enabled Run or Configuration Mode Select m OFF Run OFF ON Configuration Filename Peak Valley Hold Unit PVHU User Manual docx Date 30 May 2016 Version 3 00 danntech PROCESS INSTRUMENTATION 2016 Page 9 of 14 Configuration Mode When SW1 8 is ON then the configuration mode is activated Only the relevant DIP switches may be used i e only one switch between SW1 7 and SW1 2 SW1 8 needs to be on to be in this mode and SW1 1 selects how to do the configurations using the analogue input or the trimpots Table 2 Configuration Mode DIP Switch SW1 settings Description Default Setting This DIP switch performs two functions depending upon what is being configured Input or Trimpot Selection for Output Calibration i e SW1 6 or SW1 7 is ON OFF Analogue Input is used to excite the output ON The trimpots are used to excite the output Zero Trimpot for minimum and Span Trimpot for the maximum Digital Output Sense Select for Digital Output Setup i e SW1 3 is ON This switch setting at the time of capturing the Digital Output Setpoint selects whether the respective Digital Output is active when the input goes from low to high for a Peak or from high to low for a Valley OFF Low to High ON High to Low Test Mode Repeated pressing of the push button sets the following on 7 both outputs repeated pressing restarts the cycle Push Button Press Number Outputs follow the input as per normal opera
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