Device Replacement - Siemens SIRIUS 3SK1 Manual

Connection

9.3 Device replacement

9.3 Device replacement
Hazardous Voltage
Can Cause Death, Serious Injury, or Property Damage.
Before starting work, therefore, disconnect the system and devices from the power supply.
When replacing a device, you do not need to re-wire it. The terminals can be disconnected
from the defective device and then connected to the new device.
You can provide the terminals with coding pins. These are to help you avoid errors when
replacing the terminals (see the chapter "Terminal coding (Page 137)" for more details).
Replacing the module
Hazardous Voltage
Can Cause Death, Serious Injury, or Property Damage.
Carry out function test of the plant
To ensure the safety of the system, a full functional test must be conducted and a
successful result obtained after a device has been replaced.
Note
Only replace a defective device with a device of an identical article number.
1. Disconnect the defective device at the terminals.
– Chapter for 22.5 mm devices Disconnecting (Page 177)
– Chapter for 90 mm devices Disconnecting (Page 184)
2. Deinstall the defective device.
– Chapter "Removing devices from a standard mounting rail (Page 144)"
– Chapter "Removing 22.5 mm/17.5 mm devices with device connectors from a
– Chapter "Removing 90 mm devices with device connectors from a standard mounting
186
WARNING
WARNING
standard mounting rail (Page 148)"
rail (Page 155)"
SIRIUS 3SK1 safety relays
Manual, 06/2018, A5E02526190021A/RS-AD/004