Fault Tracing; Contents Of This Chapter - ABB Q952 User Manual

Fault tracing

Contents of this chapter

This chapter provides general diagnostics and troubleshooting tips.
Fault tracing
This table describes the status LEDs of the emergency stop safety relay [A61].
LED Color LED is lit and steady
ON Green Power supply is connected.
ERR Red System error. Replace the unit if
the error is not removed after re-
start.
K1/K2 Green Relays K1 and K2 are energized
(instantaneous contact).
K3/K4 Green Relays K3 and K4 are energized
(delayed contacts).
This figure describes the ERR LED indications in fault situations.
LED is lit and flashing
-
During external errors. See the
figure below for details.
During external errors.
During the time delay.
Fault tracing 33
7
LED is not lit
Power supply is not
connected.
-
-
-