User's Manual

Diagnostics
7.2 Diagnostics with LED
M200D AS-Interface Basic
Manual, 03/2009, A5E01668085-01
83
SF LED STATE LED DEVICE LED Device faults
Red Red Red Current flowing with no ON command
(e.g.: contact welded, thyristor failure)
Red OFF Red Electronics defective, self-test fault
Red OFF OFF No connection with AS-i
System fault/alarm
SF LED STATE LED DEVICE LED System fault/alarm
Red OFF Yellow
• Current not flowing despite ON command
(residual current detected)
• Internal trip
– Connector monitoring
– Circuit breaker tripped / shut down
• No contact block supply voltage
• External encoder supply short-circuit
OFF Green
(when contact
block is ON)
Flashing yellow Group alarm due to:
• Thermal motor model overload
• Temperature sensor overload
• Asymmetry
• Incorrect parameter value
OFF OFF OFF No supply voltage for electronics
Group fault
SF LED STATE LED DEVICE LED Group fault
Red OFF OFF Device diagnosis available