6 Operating status messages
BU 0200 en-3118 225
Diagnostic LEDs
LED Signal
Name Colour Description Status Meaning
DIN 1 yellow Digital input 1 on High signal applied
CHOP yellow Brake chopper on
Brake chopper active, brightness → degree of load (only
SK 2x5E)
High signal present (only SK 2x0E)
BUS-S green System bus off No process data communication
(4 Hz)
Process data communication active
Reception of at least 1 telegram / s
SDO data transfer is not displayed
BUS-E red System bus off No error
(4 Hz)
Monitoring error P120 or P513
E10.0 / E10.9
(1 Hz)
Error in an external system bus module
Bus module timeout on external bus (E10.2)
System bus module has module error (E10.3)
on System bus in state “BUS off”
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