Siemens SIRIUS 3RK3 - Module Replacement

7.9 Module replacement
Defective devices
Replace a defective device with a new device. Note the following safety instructions and the
described procedure when doing so. Device replacement must be carried out by authorized
specialist personnel.
Safety information
WARNING
Hazardous Voltage
Can Cause Death, Serious Injury, or Property Damage.
Before starting work, therefore, disconnect the system and devices from the power supply.
WARNING
Loss of the safety function through changes to the system.
Can Cause Death, Serious Injury, or Property Damage.
To ensure the safety of the system, any changes to it or any replacement of defective
components must be followed by a thorough and successfully completed function test of the
system.
A complete function test consists of the following tests:
• Con󹪝guration test (test of the con󹪝guration)
• System test (wiring test of the connected sensors and actuators)
Note
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
Note
Data loss
Connect or disconnect the external memory module only when the power is switched o󹪜.
1. Disconnect the defective 3RK3 central unit.
2. Remove the defective 3RK3 central unit.
3. Remove the memory module with the device con󹪝guration.
4. Install the new 3RK3 central unit.
Diagnostics / service
7.9 Module replacement
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 349