CARLO GAVAZZI RG Series User Manual
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CARLO GAVAZZI RG Series User Manual

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Brugervejledning
Carlo Gavazzi Ltd. BLB 042, Bulebel Industrial Estate, Zejtun, ZTN 3000, Malta

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  • Page 1 NRG user manual Operating instructions Manuale d’istruzione Betriebsanleitung Manuel d’instructions Manual de instrucciones Brugervejledning Carlo Gavazzi Ltd. BLB 042, Bulebel Industrial Estate, Zejtun, ZTN 3000, Malta...

  • Page 2: Table Of Contents

    4.4 RG..D..N Registers Description .................51 4.4.1 RG..D..N Holding Registers (Read/Write Access) ..........51 4.4.2 RG..D..N Input Registers (Read Access) ..............55 4.5 RG..CM..N Registers Map..................60 4.6 RG..CM..N Register Description.................61 4.6.1 RG..CM..N Holding Registers................61 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 3 7.3.2 Verification of the communications line..............104 7.3.2.1 Performing a Communications Check without connection to the main controller (PLC)..105 7.3.2.2 Performing a Communications Check through the main controller (PLC)....106 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 4 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 5: Introduction

    The contents of this guide are believed to be correct at the time of publishing. In the interests of commitment to a policy of continuous development and improvement, Carlo Gavazzi reserves the right to change the specification of the product or its performance, or the contents of this guide without prior notice.

  • Page 6: Qualified Personnel

    Normally Closed Normally Open Programmable Logic Controller Solid State Relay 1.7 Other documents Datasheets, installation guide, certificates and other relevant documentation can be found online at www. gavazziautomation.com V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 7: Nrg System Overview

    Auxiliary EMR output contacts • Internal BUS - Proprietary cables RCRGN-xxx-2, 5-way for data, supply and configuration line • REF signal - Mains reference signal for mains voltage measurement V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 8: System Components

    As per Modbus structure, the NRG controller is a Modbus slave to the main controller. The NRG controller is uniquely identified by a Modbus ID address from 1 to 247. An NRG system can hence consist of maximum 247 NRG controllers. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 9: The Nrg Controller - Nrgc

    This push button gives the possibility to perform a check of the communications link of the internal BUS. This is especially useful when the main controller is not available and such a check cannot be done through Modbus. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 10: The Nrg Solid State Relays - Rg

    RG..CM..N is controlling more than 1 load. With the RG..CM..N solid state relays, one NRG bus chain can handle a maximum of 32 SSRs per bus. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 11: Nrg Accessories - Rcrgn-Xxx-2, Rgn-Termres

    Correctly Configured device counter (CCFDC), Wrongly Configured Device Counter (WCFDC) and Un-configured Device Counter (UCFDC) are updated with the information retrieved from the system. Further details are available in section 5.2 'Procedure at power-up'. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 12: Mode Of Operation

    The tables below list the RG..N and NRGC registers and their default values after power reset. Details on the referred registers are explained in Chapter 4. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 13 Output Substitute Value Register FMSTR Firing Mode Setup Register TMBSR Time Base Setting Register CTRLR Control Level Register ONOF0R ON/OFF 0 Control Register ONOF1R ON/OFF 1 Control Register V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 14 RG..N configuration register for RG..Nxx DTY1Raa Device type 1 register for RG..Nxx DTY2Raa Device type 2 register for RG..Nxx SIN1aa SIN 1 register for RG..Nxx SIN2aa SIN 2 register for RG..Nxx V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 15 RG..N and/or the NRGC is flashing ON with a specific flash rate to indicate the type of alarm identified. In the case of the NRGC and alarm errors related to the NRGC, the auxiliary EMR will function as an alarm EMR unless configured otherwise. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 16 10% ;10% of the time-base will be ON and 90% will be OFF. The figure below shows example waveforms of this firing mode at different control levels. In this example the time base was set to 1 second. 33% control level 50% control level 66% control level V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 17 The advantage of AFC over Burst is the reduction in thermal cycling. Another advantage of AFC is that visual flicker is less noticeable than Distributed thus making it suitable for shortwave infrared heater applications. AFC has the disadvantage of worse harmonics/emissions than Burst and also slightly worse than Distributed. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 18 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 19: The Communication Interface

    This is usually convenient to do at the side of the master device, i.e., the main controller or PLC. The communication cable for the BUS chain between the NRGC and respective RG..Ns shall be the RCRGN-xxx-2 referred to in section 2.2.3 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 20: Connector Pin-Out Of Rj45 For 2W Modbus

    Register) (refer to section 5.8 'Procedure for executing a Communication Settings Update operation' for further details). The NRGC ID can alternatively be changed through the NRGC hex switch (located behind the front door flap) for Modbus ID 1-15. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 21: Inter-Frame Delays

    • Read Input Registers function code 0x04 • Read Holding Registers function code 0x03 • Write Single (Holding) Register function code 0x06 • Write Multiple (Holding) Registers function code 0x10 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 22: Structure Of Messages

    NRGCs will reply and there is no feedback as to whether the operation was successful or not. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 23 As per Modbus standard the last 2 bytes of each message are the CRC-16 of all the bytes transmitted in the message. Examples Section 3.7.2 Section 3.7.3 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 24: Examples Of Nrgc Related Messages

    TPRDC = 10, CCFDC = 9, WCFDC = 0, UCFDC = 1 10 RG..Ns found on BUS chain of NRGC with ID 5; 9 RG..Ns are correctly configured, 1 RG..N is unconfigured V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 25 Note Physical address (NRGC ID) 1 Byte 0x01 0x01 Error code 1 Byte 0x083 0x03 Exception code 1 Byte 01, 02, 03 or 04 0x04 CRC-16 2 Bytes V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 26 0x05 0x06 0x00 0x10 0x00 0xFD CRCL CRCH Response: 0x05 0x06 0x00 0x10 0x00 0xFD CRCL CRCH i.e., Auxiliary EMR set as a general purpose relay and was made to change state V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 27 Length Value Example Note Physical address (NRGC ID) 1 Byte 0x01 Error code 1 Byte 0x90 Exception code 1 Byte 01, 02, 03 or 04 CRC-16 2 Byte V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 28: Examples Of Rg

    Byte Count 1 Byte Register Values – Hi Each register value N*2 Bytes Hi Byte first Register Values – Lo CRC-16 – Lo 2 Bytes CRC-16 – Hi V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 29 Readings from RG..N in position 5 of BUS chain related to NRGC with ID 2 are: Hold current = 0x03E8 = 1000 in resolution of 0.01 = 10 Arms RMS voltage = 0x00E6 = 230 in resolution of 1 = 230 Vrms V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 30 0x01 to 0x30 0x09 0x83 Aux-function code 1 Byte 0x83 (0x03+0x80) Exception code 1 Byte 01, 02, 03, or 04 CRC-16 – Lo 2 Bytes CRC-16 – Hi V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 31 The write command will apply to all RG..Ns connected to the particular NRGC (NRGC xx) being addressed In all of the above cases, none of the RG..Ns will reply to the request. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 32 0x01 to 0x30 0x09 0x86 Aux-function code 1 Byte 0x86 (0x06+0x80) Exception code 1 Byte 01, 02, 03, or 04 CRC-16 – Lo 2 Bytes CRC-16 – Hi V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 33 0x01 to 0x30 0x09 0x90 Aux-function code 1 Byte 0x90 (0x10+0x80) Exception code 1 Byte 01, 02, 03, or 04 0x00 CRC-16 – Lo 2 Bytes CRC-16 – Hi V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 34: Message Handling Strategy

    (including those registers in the message that contained correct values). V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 35: Registers

    610 - 701 0262 - 02BD SIN2Raa SlN-address 2 Register aa (where aa = 02 to 47) SIN1R48 SlN-address 1 Register 48 02BE SIN2R48 SlN-address 2 Register 48 02BF V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 36: Nrgc Registers Description

    6 and the value in the CMMDB bits will not be updated with the value that was attempted to be written. The only exception is writing a Communications Check Stop command when a Communications Check is currently on-going. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 37 RLFNB is set as Alarm EMR. If this bit = 1, the INERF bit in the NRGC Status Register – CTRSR will contribute to activate the NRGC EMR. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 38 Hence, if for example, it is desired to have the NRGC EMR function ONLY when an alarm condition of Device Limit is identified (DLERF in CTRSR set), the contents of the RLYCR shall read as follows: TMERF DMERF DLERF BSERF CMERF INERF RLFNB RLOSB Status after reset V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 39 (exception response) and the contents of this register shall remain unchanged. Bits 8-15: Not used. Although writing to these bits shall have NO effect, it is strongly recommended to write only 0s in these bits. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 40 (exception response) and the contents of this register shall remain unchanged. Bits 3-15: Not used. Although writing to these bits shall have NO effect, it is strongly recommended to write only 0s in these bits. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 41: Nrgc Input Registers (Read Access)

    This check is done only at power-up of the NRGC. A reset of the NRGC is required to clear this flag. The flag is cleared only if the termination error is no longer present after a reset. Bits 8-13: Not used Bit 14: Reserved V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 42 Communications Check Start (requested via Push Button) 0x0200 Communications Check Stop (requested via Push Button) 0xFF00 NRGC in blocked state (hex switch and/or communication parameters corrupt / illegal) V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 43 115200 (same as shipped value) and will also default the ID MBIDR and parity MBPRR to default values, i.e., 1 and 3 respectively. Bits 4-15: Not used V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 44 0 after a reset of the NRGC and is updated only after a Roll Call or an AutoConfig command. Following a Roll Call or an AutoConfig command, the value of this counter will report the total number of RG..Ns detected IRRESPECTIVE of their configuration status V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 45 - The RG..N ID and the NRGC ID stored in a particular RG..N do NOT meet the criteria to be considered as Correctly Configured AND do not meet the criteria to be considered as Un-Configured. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 46 The RG..N ID is stored in the RG..N and not in the NRGC. It can be recalled by the NRGC only following a Sequence or Presence Roll Call or AutoConfig command. Bits 8-15: Not used V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 47 These bits shall read 0 at reset which by default is a not present end-device. The aim of these bits is purely to aid in diagnostics during configuration of the BUS to better identify any problems that can arise during the configuration process. The possible values for these bits are as follows: V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 48 Register location - 480 - 575 (0x01E0 - 0x023F) DTYPB4 [7:0] DTYPB3 [7:0] Status after reset For future use. Scope: to identify RG..N on BUS chain by platform. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 49 These bits hold the bits 16-23 of the 24 bit SIN address Bits 8-15: not used. Will be read as 0s. Unique SIN address of each RG..N will be marked on RG..N labelling. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 50 ENergy ReaDing High ENRDHR* 000F Register Last reading Running Hours - OTRDR 0010 before power On Time ReaDing Register *Readings not available if REF terminal is not connected V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 51 RG..N, the voltage measurement is 0 during SSR ON and so if the UVLMR setting >0, a Voltage Out of Range alarm will be issued. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 52 OCLMR. In such a case, the request is rejected and the setting remains as in the last correct update of this register. An alarm is raised when the current measurement is below the UCLMR. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 53 New values (i.e., the values that overwrite the default values) are not permanently stored in the RG..N. Setting of these registers, in case values other than default are required, shall be carried out at every power-up. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 54 The maximum allowable size for the CUHPR is 32 and the minimum is 1. Hence, it is possible through the Hold Current Register to read the maximum rms current measured in the past 5.12 seconds for a 50Hz line. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 55 This is set only when a teach operation has been successfully finished. When a new teach is started this is cleared to 0 Bit 15: Not used. These bits shall read 0 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 56 TOORF – Temperature Out of Range Alarm Flag - this flag is set if an over-temperature condition is present in the RG..N. This flag is cleared when the over-temperature condition is no longer present Bits 8-15: Not used. These bits shall read 0. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 57 0. This value is updated every half cycle but is based on the average of the last 16 half cycles. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 58 This reading is not available if REF terminal is not connected Note that for resistive loads with power factor = 1, the real power and the apparent power will be the same. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 59 1034h that the output was ON during its lifetime. In the event that the counter reaches its maximum value, the counter shall roll back to 0 and start counting up again. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 60 SSR Running Hours Read Register before power Last reading LDOTRDR Load Running Hours Read Register before power These readings are not available if REF terminal is not connected. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 61 Resets all the device settings back to default values. The values will be reset upon the next power up Factory reset of the NRGC. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 62 0. The minimum allowed current can be 0, the maximum limits for each variant are listed in the table below: Model Default limit RGC1A60CM25KEN RGC1A60CM32KEN RGC1A60CM32GEN RGC1A60CM42GEN RGC1A60CM62GEN RGS1A60CM50KEN RGS1A60CM92KEN RGS1A60CM92GEN V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 63 Alarm is cleared when the alarm condition is not present. Alarm is not cleared when the alarm condition is not present. Alarm will clear only after a ‘Clear Manual Recovery Latched Alarms’ command is sent. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 64 A UVLMR value >0 should only be set if the REF connection is present on the RG..N. If the REF connection is not present on the RG..N, the voltage measurement is 0 during SSR ON and so if the UVLMR setting >0, a Voltage Out of Range alarm will be issued. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 65 New values (i.e., the values that overwrite the default values) are not permanently stored in the RG..N unless a ‘Store Permanently’ command is executed after the setting of the parameters. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 66 New values (i.e., the values that overwrite the default values) are not permanently stored in the RG..N unless a ‘Store Permanently’ command is executed after the setting of the parameters. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 67 New values (i.e., the values that overwrite the default values) are not permanently stored in the RG..N unless a ‘Store Permanently’ command is executed after the setting of the parameters. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 68 Set Substitute Value After a communications timeout, the device will switch to a predefined substitute control (requires OPSVR) level set in the ‘Output Substitute Value Register’ V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 69 This register defines the time base settings for the Burst firing mode (see FMSTR register for more details). This register is in steps of 0.1s and hence this register can have a value between 0.1s and 10s. The default value shall be 0.1 Seconds i.e. 1. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 70 Nonetheless if mode is changed to ON/OFF the device will change its state according to the value which had already been written into this register. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 71 LDF – Load Deviation Alarm Flag - this flag is set if a Load Deviation condition is present on the device. This flag is cleared when the Load Deviation condition is no longer present Bits 9-15: Not used. These bits shall read 0. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 72 The value of the CUHDR register is in 0.01A steps hence a value of 50 means 0.50A, a value of 1747 means 17.47A. This register does not work with the 'Advanced Full Cycle' switching mode. In this case it reports a value of 0. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 73 0.50A, a value of 1747 means 17.47A. If a fault occurs in the system such that it is not possible to measure the current, this register gives a value of 0. This value is updated every half cycle but is based on the average of the last 16 half cycles. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 74 This value is updated every time the RPRDR is updated and hence every half cycle the value of the RPRDR is multiplied with the time duration of the last half cycle. This reading is not available if REF terminal is not connected. Readings <10W are not considered. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 75 Last reading before power off reset Bits 0-15: This register is a mirror of the value within LDOTWRR (Holding Register). Therefore, it will always contain the value of LDOTW. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 76 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 77: Operating The Nrg System

    ID. In such a case, it will be impossible for the main controller to communicate with the devices present on the BUS and abnormal behavior of the whole serial BUS may occur. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 78: Setting The Nrgc Modbus Id Through Modbus Using The Stidr

    • use the new ID, 5, and known communication settings to write the desired ID to the STIDR and request a Communications Settings Update • set hex switch to position 0 • reset the NRGC V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 79: Procedure For Executing A Communication Settings Update Operation

    NRGC. This is done so that just in case only one register needs to be updated the registers that are not updated would have the current set values. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 80: Procedure At Power-Up

    Refer to section 3.7.3 for further details on communication with with the RG..Ns, it should: RG..Ns - Update default limit settings of the RG..Ns (if required) - Read the required parameters from the RG..Ns V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 81: Procedure During Operation

    RG..N in the link between the RG..N and the NRGC and hence the CMERF is clear • that no alarm is present on the RG..N and hence the AL1SF is clear V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 82: Procedure For Executing A Sequence Roll Call/Presence Roll Call/Autoconfig Operation

    RG..Ns is ignored and no reply shall be sent back to the main controller. CTRBF clear means no ongoing operation 7. The operation procedure terminates when the main controller reads the CTRBF as cleared V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 83: Procedure To Check The Result Of A Sequence Roll Call Operation

    RG..N was removed from the BUS and not re-installed. In this case the main controller has to decide whether to proceed with systems operations as explained in further detail in in section 7.1 Case 4. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 84: Procedure To Check The Result Of An Autoconfiguration Operation

    6. The DMERF is cleared in the CTRSR A clear DMERF clears the Configuration Error on the Alarm LED of the NRGC and the auxiliary EMR if set accordingly V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 85: Procedure For Executing A Communications Start / Stop Operation

    NRGC shall become busy until the communications is accepted Check operation is actually stopped. The main controller should poll the CTRBF to ensure it is clear before issuing a new command. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 86 V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 87: Alarms And Diagnostics

    In the presence of an alarm condition, all applicable flags in the EDGSR and AL1SR will be set. The red ALARM LED on the respective RG..N will be ON with a flash rate of the alarm with higher priority. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 88: Ssr Over-Temperature

    RG..N and it is up to the user to decide what to do when the FOORF is set. The alarm is cleared (FOORF cleared and RG..N alarm LED switched OFF) when: UFLMR ≤ FQRDR ≤ OFLMR for >10 seconds. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 89: Current Out Of Range

    When continuing operation with RG..Ns reporting an internal error there is a risk that the messages are not correctly received by the RG..N and/or replies will not be correctly received by the NRGC and/or main controller. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 90: Nrgc Related Alarms

    - during message reception bytes are received in between the t1.5 and the t3.5 interframe delay The successful reception of a message will clear the reception errors counter. The communication error (COM) is cleared if none of the above 3 conditions is present. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 91: Communication (Bus) Error

    This alarm (and respective flag TMERF) is not cleared until the NRGC is powered-off and powered-on again and the termination of the BUS is found in order. The internal BUS correct termination check is done only at power-up of the NRGC. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 92: Troubleshooting Of Rg

    Self-recovery when fault condition is no longer present. Troubleshooting Ensure mains supply is ON. Confirm that protection (fuses / miniature circuit breakers) have not tripped. Ensure L1 terminal of RG..N is properly connected. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 93 Note: Self-recovery can be disabled for RG..CM..N solid state relays via the Alarm Setting Register. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 94 RG..N needs to be replaced as alarm won’t recover. Troubleshooting Confirm presence of 24V supply voltage on the NRGC Us terminals. Recommendations Replace RG..N reporting an internal error. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 95 Check that the number of RG..Ns connected to the BUS chain is larger than max. allowed de- pending on the end device model (RG..D..N or RG..CM..N). Check wiring between NRGC and subsequent RG..Ns V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 96: Alarm Priorities

    However, the CTRSR, the EDGSR and the AL1SR will have the respective alarm flag, for each type of alarm, set if different alarm types are identified. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 97: Troubleshooting

    More RG..Ns than allowed connected Verify that the correct no. of RG..Ns are to the BUS chain connected to the BUS chain and remove ‘extra’ RG..Ns to clear Alarm condition V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 98 • Perform an AutoConfig operation to configure correctly the RG..Ns on the BUS chain • Analyse the result of the AutoConfig operation or perform a Sequence Roll Call operation V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 99 RG..N from the BUS so that it does not interfere with the normal operation of the BUS. In the case of a change of wiring it is strongly suggested to reset the NRGC. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 100 RG..Ns that exceed the maximum allowed will not communicate with the NRGC during this check and hence will have the respective BUS LED OFF indicating no on-going communication. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 101: Troubleshooting After An Autoconfiguration Operation

    RG..Ns. However, if all the remaining RG..Ns are detected, the system may be run as is until the faulty RG..Ns are eventually replaced. This is similar to Case 4, Option 2.1 explained in section 7.1. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 102: Troubleshooting Nrgc Related Errors

    The following shows possible actions that can be carried out to find the cause of this error. NRGC RG..N RGN-TERMRES A ALARM LED ON with 10 flashes = Termination Error Fig. 7.1: NRG BUS chain with a Termination (BUS) error V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.
  • Page 103 OFF if Termination error is cleared - faulty RGN-TERMRES A RGN-TERMRES B Fig. 7.3: NRGC terminated with RGN-TERMRES B In case of reported errors, the cause of the malfunction is probably the NRGC • Replace the NRGC V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 104: Verification Of The Communications Line

    Communications Check can be carried out either with the main controller connected to the NRG system but also with the NRGC(s) disconnected from the main controller or PLC. During this check the NRGC attempts to communicate with the RG..Ns on its BUS chain. V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 105: Performing A Communications Check Without Connection To The Main Controller (Plc)

    RG..N giving an alarm, have their BUS LED OFF because they could not be reached • Power OFF the system or press again the ‘TEST’ front push button between 2 seconds and 5 seconds to terminate the Communications Check operation V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

  • Page 106: Performing A Communications Check Through The Main Controller (Plc)

    • Once the Communications Check has been done, the Communications Check operation can be stopped either by the main controller that sends a command through the CMMDB to the NRGC for a Communications Check Stop operation or by powering OFF the system V1.4 | NRG User Manual | © 2020 | CARLO GAVAZZI LTD.

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