Siemens SIRIUS 3RK3 Equipment Manual page 252

Diagnostics / service
7.2 Diagnostics concept
Handshake error
This category of error only occurs in test mode. This error is caused by an interruption in the
connection between the Safety ES and the MSS 3RK3. The MSS 3RK3 changes from test mode to
configuring mode.
Display on the central unit
LED
DEVICE
SF
252
Display
Yellow
red
Remedy
Acknowledgment is not necessary. The error is automatically
canceled when a connection is re-established.
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
SIRIUS 3RK3 Modular Safety System