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SSRMON Series User MAnual

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1. ATURE SHUTDOWN DEVICE to switch the power off if safe temperatures are exceeded WARNING HIGH VOLTAGE This control is installed on a Solid State Relay with high voltage on it This control must be installed in a GROUNDED enclosure by a qualified electrician in accordance with applicable local and national codes including NEC and other applicable codes Provide a safety interlock on the door to remove power before gaining access to the device Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual Page 3 3 1 Mounting Instructions The SSRMONZ is designed to mount in a piggy back configuration on any standard footprint Solid State Relay The unit should be used with a finger safe cover if possible to minimize electrical shock hazards 3 2 Wiring Instructions The input and output terminals of the SSR should be wired with the board installed but as if the board is not present In high current applications over 40A we recommend wiring the connection lugs under the SSRMON2Z Printed Circuit Board Bushings All 1 0 on the SSRMON2Z is available with screw terminal connectors for ease of harness assembly The screw connectors can accept up to 16 AWG wire The power alarm and ground wires are wired to the screw terminal block In the case of the interrupted input version the control input is wired to the screw terminal connector located at the top left hand corner of the board The AC Load Side and Signal connections should be wire
2. control input is optically isolated from both the AC output and the DC power supply The control input has nominal input impedance of 4 KQO 4 2 Continuous Input Version Applications The Continuous input wiring of the SSRMON2 can only detect a failure condition when the control input signal of the Solid State Relay and SSRMON2 become logic low The control input is required to remain logic low for at least 100mS before the failure will be detected 4 2 1 Time Proportioned Controlled Processes The Continuous input wiring will perform well in the majority of applications where the SSR control input is being cycled periodically time proportioned P PI PD PID We recommend that the process controller or other device used to drive the SSRMON2 be setup to have a periodic off time of at least 100mS This can usually be accomplished via an output percentage limit function in the temperature or process control For example if the cycle time on the process controller is set to 10 seconds and the output limit is set to 99 then the output will cycle off for 100mS every 10 seconds even if the controller output is on full As another option some PLCs may also be programmed to periodically interrupt the SSR control signal 4 2 2 Using the SSRMON2Z in On Off Controlled Process The Continuous input wiring may be used in on off control applications The trade off is that no alarm can be detected until the process controller or other device driving t
3. d Input Version Applications xicciccncvcsttearaweranwennediwnsiinalacersiondiansvectsdneseasianstinedndwesidhiatsswesataeaueaden Guchsineeuetisanderteaneseondsmasieesnine 5 4 4 e TEDE 0 E E A EE E E E EN E E AA E A E EA E E E T N E E E E E 6 4 5 FUC GOS e E E E E weed ta eeadayeec cesaaeeneteens 6 4 5 1 Continuous Input Faul DeteChON ssns Er a TAE Ora Enae iie iniae 6 4 5 2 Misrupted Input Faut Deis CHOON cya EER E S A TE 6 4 6 APU UI SOONG sorire A E E EEA AT E E EE AE R 6 4 7 S Daan FOE i E EE E E 7 Elec CI a CHING LON ssni aen E A E EE 8 Mechanical DMmensiOnS neuin E E E E E E ES 8 Comia o MA sasen EE E E SE 8 Ordering Code The SSRMON2 uses one ordering code which encompasses both 12 and 24V versions with interrupted and continuous operation Description The SSRMON2 is an SSR mounted diagnostic module that monitors the SSR for loss of load loss of power shorted SSR etc The module provides a closed relay contact that opens upon any fault condition Installation Safety Information Responsibility for determining suitability for use in any application equipment lies solely on the purchaser OEM and end user Suitability for use in your application is determined by applicable standards such as UL cUL and CE and the completed system involving this component should be tested to those standards WARNING FIRE HAZARD Even quality electronic components CAN FAIL KEEPING FULL POWER ON Provide a SEPARATE redundant OVER TEMPER
4. d as shown in the wiring diagrams section It is good practice to keep the AC Load Side wires away from the Control and Alarm wires to prevent any power line noise from coupling into them Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual 3 3 Wiring Diagrams examples CONTINUOUS MODE WIRING Temperature Controller ALARM CONTACTS LINE 3 4 Limited Warranty Page 4 INTERRUPTED MODE WIRING Temperature Controller 24VDC ALARM CONTACTS NuWave Technologies Inc warrant this product to be free from defect in workmanship and materials for a period of two 2 years from the date of purchase 1 Should unit malfunction return it to the factory If defective it will be repaired or replaced at no charge 2 There are no user serviceable parts on this unit This warranty is void if the unit shows evidence of being tampered with or subjected to excessive heat moisture corrosion or other misuse misapplication 3 Components which wear or damage with misuse are excluded e g relays 4 NuWave Technologies Inc shall not be responsible for any damage or losses however caused which may be experienced as a result of the installation or use of this product NuWave Technologies Inc liability for any breach of this agreement shall not exceed the purchase price paid E amp O E Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual Page 5 4 Operation 4 1 SSRMON2 Input The SSRMON2Z
5. ds on Interrupted Input version with control input on 100 100 600 VAC 50 60 Hz 4000 Vrms 25 C for 1 second 6 MA rms max across SSR output 1200 Vek max 1 minute duration O to 50 C 6 Mechanical Dimensions COM 24 OV NG INT IN See Notes 1 550 0 392 Ta ey 2 150 0 250 7 Contact Information NuWave Technologies Inc 866 379 3597 www nuwaveproducts com Copyright 2014 NUWAVE TECHNOLOGIES
6. he Solid State Relay and SSRMON2 turns its control output off In most cases if the Solid State Relay becomes shorted this will force the process value to the required setpoint causing the control output to turn off 4 3 Interrupted Input Version Applications We recommend the Interrupted input wiring for on off control and switched applications where the control input to the SSR and SSRMON2 may not be cycled regularly The interrupted input version of the SSRMON2 forces the SSR control input off for a brief period 100mS 150mS approximately every 10 seconds This results in a duty cycle of about 99 In most processes a forced brief off period 100mS of the load is negligible such as in an on off temperature control application The Performance on the control of heaters is negligible it is approximately equivalent to having a 0 5 change in line voltage which happens frequently everywhere Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual Page 6 4 4 Alarm Output The alarm output of the SSRMON2 is a low voltage current relay contact Single Relay Contact 48 VDC 0 1 A max non inductive non capacitive Relay contacts open upon fault or loss of board power Relay contacts are closed when no faults are present The alarm output may be used to drive indicators audible alarms PLCs etc The required output current should not exceed 0 1 Amps If multiple SSRMON2s are needed in a given installation such as ina polyphase application the o
7. urther details see the status diagram Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual Page 7 4 7 Status Diagram Normal Normal Line Open Shorted Faults DC SSR SSR Voltage Load SSR Conditions Supply Off On LOSS Failure Failure Corrected Loss Line Voltage Load Current Control Green LED Relay Contacts Closed Relay Contacts Open Alarm Output Copyright 2014 NUWAVE TECHNOLOGIES SSRMON User Manual 5 Electrical Specifications SPECIFICATIONS Monitoring Modes Power Status Indication Power Supply Input Mode Control input Impedance Control Voltage Alarm Output Alarm Response Time AC Line Voltage Input Output Isolation Off State Leakage Current Off State Blocking Voltage Operating Temp Range Monitors SSR Output and Input for shorted SSR output loss of line voltage loss of load short external to SSR loss of DC power Green LED energized when power is applied and normal operating conditions are present i e status is OK 10 26VDC 50mMA Max Interrupted input to SSR and SSRMON is forced off for 150 200mS every 10 seconds to test SSR I O logic Continuous input to SSR and SSRMON is based on drive signal 4 KO 5 26 VDC single Relay Contact 48 VDC 0 1 A max non inductive non capacitive Contacts open upon fault or loss of board power Contacts are closed when no faults are present Typically less than 50 mS from the last control input cycle Up to 10 secon
8. utput relay contacts may be wired in series to OR the alarms into one signal The SSRMON2s output relays may also be wired in series with other devices normally closed alarm relays For further applications of the SSRMON2 see Application Note AN 1 4 5 Fault Conditions The SSRMON2 can detect a loss of load line power loss of DC power supply a loss of load and a shorted solid state relay The SSRMON2 can detect either half wave or full wave shorted failure conditions of the SSR 4 5 1 Continuous Input Fault Detection Failure Condition When Detected Shorted SSR After Control Input remains logic low for 100mS or more i e when an attempt is made to turn the SSR off i e when an attempt is made to turn the SSR off i e when an attempt is made to turn the SSR off 4 5 2 Interrupted Input Fault Detection Failure Condition When Detected Shorted SSR Anytime Independent of control Input forced off period Open Load Anytime Independent of control Input forced off period Load or Line Power Loss Anytime Independent of control Input forced off period DC Power Supply Loss Anytime Independent of control Input 4 6 Input Output Logic Once a fault condition is detected i e loss of load line power loss of load or a shorted solid state relay the relay contacts are opened and held open until the fault condition is corrected and the control input of the SSRMON2Z is toggled or DC power is removed and applied again For f
9. wove INC Dees Rev 1 0 04 14 NECHNg SSRMON2 USERS MANUAL SOLID STATE RELAY MONITOR COPYRIGHT 2014 NUWAVE TECHNOLOGIES INC SSRMON User Manual Page 2 a hae po pi Table Of Contents fo 1 316 COG aesnmeeenee a reece A ne Ce ene eee se ene ee en nee eee ee ee eee ee 2 BS Sd UIs ge resect cto evas Jochs ab ascesicaig so fecha oatipniriecinaeis odie tine ciqaisisecieqaninned eainustisodsameneciesisust deco nane neces aus dodearepnedascesdoteneneecdeseane 2 PS Pete er eae YIU EU AU OY esna EE E EE stare tatatecedsctiesceaosesiaentacnteteanancatetioncetucacet 2 3 1 Mounting IMS TUTTO NS ssoi o Eiroa eara aiaa aE e a ee tases sot mae 3 3 2 Wn Wl arc TOC ONS en E E E E E E A ee eee re 3 3 3 Winnog Diagrams axaMmpIOS lsrinin EAE ERE ERARA EEOAE RRR 4 3 4 VY VV E AL EN E EE EO SE A E E AA E E N E S AE E E ET 4 E e 9 A AEE EN A TEA E AE eae ee A E A A E A E E EE A EA NE AAEE A E E nee 5 4 1 CRONE I a E E A E E E E E re E EE 5 4 2 Continuous Input Veron AD OIC ANOS sesc5ecececsagevexecnveeschctaceesoaavevevecenavvencsasescostaseenecanusecesinaseessisunedeshaseesecasaksseetaaveee E ENE eE 5 4 2 1 Time Proportioned Controlled Processes ssssecccceeccececeeaaaeeseceeeeeeeeeeeeeeeeeaaaaaeaddeeeeeeeeeeeeeeeeaaaaaaaceeeeeeeeeeeeeeeseaaaagseeess 5 4 2 2 Using the SSRMON2 in On Off Controlled Process ssssseeeeeceeeeeeeeeeaaeessceeeeeeeeeeeeeeeeeaaaauesdeueeeeeeeeeeeeesaaaaasseeeeeeseress 5 4 3 Interrupte

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