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RCM 202-AB

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RCM 202-AB

NOTE

The device address 1 and the baud rate of 19200 baud are factory-set.

If the RCM 202-AB is the first or last device in the Modbus line, the termina-

tion resistor must be set.

The ground terminals of all RS485 connections of multiple RCM 202-AB

must be connected with the ground wire of the cable. The ground wire must

be grounded in one point. The second wire pair of the bus cable is used as

the ground wire. Both wires of the pair are parallel connected.

The shield may be applied only on one side!

Terminate the first and last bus participants within a bus segment by pushing

the “Term” switch to the right.

NOTE

In the case of a RS485 connection from a control cabinet to a control cabi-

net, the Modbus connections B+ and A- must be electrically isolated.

Connect the current measurement transformer to the plug of the respective

current measurement input (I1 and I2). When doing so, observe the connec-

tions K and L (see also Tab. 3 on page 21).

  Connect the analog and digital outputs if necessary.
  Make sure that the connected connectors are still firmly seated.
  Retighten all screw connections.

9.2 Commissioning

NOTE

The housing of the RCM 202-AB warms up during operation.

Connect the plug for the power supply to the N/L connection. The status LED

flashes green. RCM 202-AB initialization takes place. “I1

---” and “I2

---”

appear on the display.

Wait until initialization is completed. Initialization can take up to 60 seconds.

Initialization will take longer if the transformer measures residual currents

already during initialization.

The status LED lights up green and the measured values for the activated

measurement channels are shown on the display. The RCM 202-AB is

ready for operation.

If necessary, configure the RCM 202-AB (see chapter 12) according to the

system to be monitored and depending on the circuit of its connections.

Содержание RCM 202-AB

Страница 1: ...0 Janitza electronics GmbH Vor dem Polst ck 6 D 35633 Lahnau Germany Support Tel 49 6441 9642 22 E Mail info janitza de www janitza de www janitza de RESIDUAL CURRENT MEASUREMENT DEVICE RCM 202 AB Use...

Страница 2: ...2 RCM 202 AB www janitza de...

Страница 3: ...rmer monitoring 13 6 2 Parameterization options 13 6 2 1 Warning and alarm thresholds 14 6 2 2 Hysteresis 14 6 2 3 Delay times 15 6 3 Extreme value storage 16 6 4 Measured value memory historical data...

Страница 4: ...2 1 Menu item Channel active 39 12 2 2 Menu item Transformer type 39 12 2 3 Menu item Monitoring active 40 12 2 4 Menu items Warning th I to warning th I AC50 40 12 2 5 Menu items Alarm th I to alarm...

Страница 5: ...nd their remediation 54 14 1 1 The status LED is off 55 14 1 2 The status LED flashes green 55 14 1 3 The status LED lights up green 55 14 1 4 The status LED flashes yellow 56 14 1 5 The status LED fl...

Страница 6: ...6 RCM 202 AB www janitza de...

Страница 7: ...to the product Keep the user manual through the entire service life of the product so it is available for all users 1 2 Abbreviations used Abbrevia tion Meaning Modbus Communication protocol based on...

Страница 8: ...tion NOTE This symbols and the word Note are used to make reference to additional information necessary for device use 2 2 General safety instructions The following safety instructions must be observe...

Страница 9: ...all be parameterized and documented by Janitza electronics GmbH 3 Purpose Intended use The RCM 202 AB is a two channel residual current measurement device for the measurement and monitoring of main di...

Страница 10: ...ort any dam age or missing content to the manufacturer sales partner 5 Overview of the RCM 202 AB 5 1 Device view Fig 1 RCM 202 AB device view 1 Connection for 2 current measurement transformers 2 Ope...

Страница 11: ...CM 202 AB 11 5 2 Device dimensions Fig 2 Device dimensions in mm 5 3 Labeling Various labels are applied on the RCM 202 AB with the following information Manufacturer Serial number and item number Tec...

Страница 12: ...torage with time stamp Parameterizable alarm threshold for alarm message per channel Parameterizable warning threshold e g prewarning for warning message per channel Parameterizable delay times Delay...

Страница 13: ...o current measurement transform ers at the same time For each active channel the RCM 202 AB continuously checks the connected transformer for short circuit or wire breaks If a short circuit or wire br...

Страница 14: ...arm thresholds Parameterization The digital output reacts to warning and alarm thresholds When the warning and alarm thresholds are exceeded the messages can be called up via Modbus after the delay ti...

Страница 15: ...of a delay time for warning and alarm messages Messages are not taken into consideration during the parameterized delay time tv They are only displayed and updated in Modbus if the current path still...

Страница 16: ...alue storage The RCM 202 AB stores the minimum and maximum values of residual current meas urement for each current channel with a time stamp The stored extreme values can be displayed by channel on t...

Страница 17: ...nterval Total current residual current type B Total current up to 2 kHz residual current type B Direct current Alternating current with frequencies up to 2 kHz residual current type A Alternating curr...

Страница 18: ...d for connections via the Modbus interface RS485 For a sufficient shielding effect the shielding must be connected extensively to one end of a cable with a grounded housing or cabinet parts Connection...

Страница 19: ...e value of the measured total current Both analogue out puts require a separate power supply DC 12 24 V In the configuration menu of the RCM 202 AB the measuring range total current can be scaled In s...

Страница 20: ...20 RCM 202 AB www janitza de 20 RCM 202 AB 7 Connection assignment Fig 8 Circuit diagram of the RCM 202 AB...

Страница 21: ...ection 1 I1 K Current measurement transformer 1 contact k wire color1 white 2 I1 L Current measurement transformer 1 contact l wire color1 brown 3 I2 K Current measurement transformer 2 contact k wire...

Страница 22: ...on example RCM 202 AB in stand alone mode Fig 9 Connection of two relays to the digital outputs 8 2 Application example analog outputs interface 4 20 mA Fig 10 Connection of a display device and a PLC...

Страница 23: ...02 AB 23 8 3 Application example analog outputs and UMG 96RM E Janitza power supply unit art no 16 05 012 required RCM 202 AB 23 8 3 Application example analog outputs and UMG 96RM E Janitza power sup...

Страница 24: ...de 24 RCM 202 AB 8 4 Application examples via Modbus RS485 interface Fig 11 Application example PLC Fig 12 Application example Measurement devices Fig 13 Application example Modbus TCP Fig 14 Applica...

Страница 25: ...ons the installation in the Modbus segment the serial number the Modbus address device address as well as the designation of the current measurement transformer must be noted in the system documentati...

Страница 26: ...transformer to the plug of the respective current measurement input I1 and I2 When doing so observe the connec tions K and L see also Tab 3 on page 21 Connect the analog and digital outputs if necess...

Страница 27: ...s of the RCM 202 AB accord ing to the system to be monitored and depending on the circuit of its connec tions Change them if necessary 10 Display and operating elements 10 1 Display and keys Fig 15 Fr...

Страница 28: ...e than 10 minutes If no key is pressed for more than 120 minutes the display shuts off The display or the backlight of the display are reactivated as soon as a key is pressed Response messages are dis...

Страница 29: ...messages are generated Actuation 3 s no function Menu Navigation in the submenus and between the menu items Parameterization mode Setting the values Down Normal operation No function Menu Navigation...

Страница 30: ...h number with The password is a 6 digit number sequence The factory setting is 000000 Input and confirmation of the correct number sequence The symbol on the display changes to Parameterization mode i...

Страница 31: ...ng and changing values in the menu ATTENTION Changes to the settings can be safety relevant Changes may only be made by an authorized electrician In case of doubt contact Janitza electronics GmbH NOTE...

Страница 32: ...displayed with a dark background Press The submenu Channel 1 is opened Use or to select the menu item Response delay The Re sponse delay menu item is displayed with a dark background The set value e g...

Страница 33: ...ng steps for checking the monitoring function NOTE The performance of the test is saved with the time stamp and can be dis played in the menu 6 Functional test Initial situation The main screen is sho...

Страница 34: ...ve Transformer type DW18 Monitoring active Warning th I 3 00 A Change password Warning th I DC 3 00 A Warning th I AC2k 3 00 A Warning th I AC20k 3 00 A Warning th I AC50 3 00 A Warning th I 2k 3 00 A...

Страница 35: ...vice Transformer analysis Power frequency 50Hz Current value AC AC2k 8 Factory setting load 9 Information JANITZA electronics GmbH RCM 202 AB Rev 1 1 SN 6 Firmware 1 0 0 1 P N 080334 5 Min max values...

Страница 36: ...Shown on the dis play Set values control com mands Remark LCD contrast 74 50 85 In steps of 1 12 1 2 Menu item Change date time Fig 18 Change date time submenu Setting option Change the date and time...

Страница 37: ...u item Parameter release NOTE It is only possible to view and change the set values and control commands in parameterization mode The values in the submenus 1 Service 4 Measured value memory 9 Informa...

Страница 38: ...word 0 0 0 0 0 0 PW accepted 12 2 2 Channel parameter NOTE Parameterization mode must be released in order to display the menu 2 Channel parameter Fig 20 2 Channel parameter menu The menu items remain...

Страница 39: ...Monitoring active Warning th I 3 00 A Channel 2 Channel active Transformer type DW18 Monitoring active Warning th I 3 00 A Warning th I DC 3 00 A Warning th I AC2k 3 00 A Warning th I AC20k 3 00 A Wa...

Страница 40: ...y Modbus if parameterized digital output 1 and or 2 Shown on the dis play Set values control com mands Remark Warning th I 3 00 A 0 03 0 99 steps of 0 01 1 00 4 90 steps of 0 1 5 00 20 00 steps of 1 T...

Страница 41: ...ut 1 and or 2 Shown on the dis play Set values control com mands Remark Alarm th I 5 00 A 0 03 0 99 steps of 0 01 1 00 4 90 steps of 0 1 5 00 20 00 steps of 1 Total current with frequen cies up to 20...

Страница 42: ...below the message that the alarm threshold was exceeded ends display Modbus if parameterized digital output 1 and or 2 Shown on the dis play Set values control com mands Remark Hysteresis 0 00 A 0 00...

Страница 43: ...ith frequencies up to 20 kHz Warning th I AC50 Exceedance of the warning threshold for fundamental oscillation Warning th I 2k Exceedance of the warning threshold for total current with frequencies up...

Страница 44: ...anual Data and settings for the Modbus connec tion must be strictly observed Fig 22 3 Communication menu The menu items make it possible to set the following Communication interface RS485 Modbus 12 3...

Страница 45: ...ay Set values control com mands Remark Baud rate 19200 9600 19200 38400 57600 115200 12 4 Menu 4 Measured value memory Fig 23 4 Measured value memory menu The menu items make it possible to set the fo...

Страница 46: ...There is no additional confirmation prompt Setting option Deletion of the measured value memory without password Shown on the dis play Remark Delete record Press to delete the stored measured values a...

Страница 47: ...m Channel 1 and 5 Min max values 2 menu item Channel 2 5 Min max values 1 Max value 0 02 A Max value time 24 02 2018 14 08 PM 5 Min max values 2 Max value 0 02 A Max value time 24 02 2018 14 08 PM Min...

Страница 48: ...Time stamp of the minimum value Delete values Values deleted Press to delete the stored extreme values of the dis played measurement channel 12 6 Menu 6 Functional test Fig 26 6 Functional test menu...

Страница 49: ...y Remark Last test dd mm yyyy HH MM The time stamp is set after the test for the monitoring func tion of RCM 202 AB is formed by pressing dd day mm month yyyy year HH hour MM minute 12 7 Menu 7 Servic...

Страница 50: ...e connected current measurement transformer Shown on the dis play Set values control com mands Remark Transformer ratio 700 600 1000 In steps of 10 Menu item Execute ATTENTION Do not perform the trans...

Страница 51: ...AC AC50 AC2k Alternating current with fre quencies up to 2 kHz AC20k Alternating current with fre quencies up to 20 kHz AC50 Fundamental oscillation 12 8 Menu 8 Factory setting Menu item Load ATTENTI...

Страница 52: ...number P N of the RCM 202 AB 12 10 Menu 10 Restart By selecting this menu with the RCM 202 AB is restarted In this way for example it is possible to delete error messages on the display that were not...

Страница 53: ...t messages and erroneous functions are displayed by the LED and text mes sages of the RCM 202 AB A visual inspection is to be performed in the course of the maintenance and inspection cycle for statio...

Страница 54: ...as be connected to the building control system 14 1 Errors and their remediation ATTENTION If a fault cannot be eliminated please contact the Service department NOTE If multiple possible causes are in...

Страница 55: ...14 2 on page 58 14 1 2 The status LED flashes green Text message I1 and I2 Cause Device initialization Remediation NOTE The initialization procedure can take multiple seconds Wait until the initializa...

Страница 56: ...ove the defective device Text message Alarm threshold err Cause Residual current in the monitored system Residual current set alarm threshold Remediation Localize the defective consumer a Switch off t...

Страница 57: ...is an electrically conductive connection replace the RCM 202 AB After completing the work reconnect the plug of the current measurement transformer to the RCM 202 AB Make sure that the plug is firmly...

Страница 58: ...he removal and reinstallation 14 2 1 Removal of a defective RCM 202 AB Disconnect the plug from the power supply N L The power supply for the RCM 202 AB is interrupted Disconnect the connector for the...

Страница 59: ...operating status of the monitored system If necessary configure the RCM 202 AB according to the system to be mon itored and depending on the circuit of its connections 15 Warranty and liability The ge...

Страница 60: ...xternal back up fuse for the power supply Circuit breaker 1 pole 3 A AC 230 V Operating mode Continuous operation Power consumption internal consumption 8 W Isolation coordination according to IEC 606...

Страница 61: ...ingle wires 0 75 to 1 5 mm max 10 m Shielded cable 0 75 to 1 5 mm max 10 m Displays messages and memory Full graphics display LCD 128 x 64 pixel with backlight Status LED 3 color Controls 3 keys Menu...

Страница 62: ...vices Part 1 General requirements IEC EN 61010 1 Part 2 030 Particular requirements for equipment having testing or measuring cir cuits IEC EN 61010 2 030 Electromagnetic compatibility EMC Immunity fr...

Страница 63: ...ammability rating UL94V 0 Weight Approx 170 g 0 375 lb Connection type cable Series terminal copper Connection cross section single wire finely stranded 0 2 4 mm2 0 2 1 5 mm2 AWG 24 15 19 2 RCM 202 AB...

Страница 64: ...labels on the transformer connections S1 k S2 l NOTE A cable length of 10 m between the transformer and the measurement de vice may not be exceeded Observe the maximum cable resistance of 2 Ohm Recom...

Страница 65: ...700 1 20000 CT AC RCM 80N 80 700 1 20000 CT AC RCM 110N 110 700 1 20000 CT AC RCM 140N 140 700 1 20000 CT AC RCM 210N 210 700 1 20000 CT AC RCM A110N 110 700 1 20000 CT AC RCM A150N 150 700 1 20000 C...

Страница 66: ...66 RCM 202 AB www janitza de...

Страница 67: ...67 www janitza de RCM 202 AB...

Страница 68: ...18000 CT AC RCM 35N 35 700 1 20000 CT AC RCM 80N 80 700 1 20000 CT AC RCM 110N 110 700 1 20000 CT AC RCM 140N 140 700 1 20000 CT AC RCM 210N 210 700 1 20000 CT AC RCM A110N 110 700 1 20000 CT AC RCM...

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