Diagnostics / service
8.7 Module replacement
Modular Safety System 3RK3
286 System Manual, 10/2008, 926 2530-02 DS 02
8.7 Module replacement
WARNING
Hazardous Voltage.
Can Cause Death, Serious Injury, or Property Damage.
Before starting work, therefore, disconnect the system and devices from the power supply.
Tip
When replacing a module, you do not need to re-wire it. The terminal blocks can be
disconnected from the defective module and then connected to the new module.
Replacing the central unit
NOTICE
Data loss
Connect or disconnect the external memory module only when the power is switched off!
1. Disconnect the defective central unit.
See also
Disconnecting (Page 80).
2. Remove the defective central unit.
See also
Removing the central unit, expansion module, or interface module (Page 66).
3. Remove the memory module with the device configuration.
4. Install the new central unit.
See also
Mounting the central unit, expansion module, or interface module on a DIN rail
(Page
64) or Mounting the central unit, expansion module, or interface module on a level
surface (Page
64).
5. Connect the module.
See also
Plugging in terminal blocks (Page 83).
6. Insert the memory module with the existing configuration data.
See also
Connecting the memory module (Page 84).
After applying the supply voltage, the new central unit checks whether the hardware
configuration agrees with the device configuration.
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