Fault tracing
Contents of this chapter
This chapter provides general diagnostics and troubleshooting tips.
Fault tracing
The emergency stop safety relay [A61] type is DOLD UG 6960. For more information, see
the data sheet of the relay (www.dold.com).
This table describes the status LEDs of the emergency stop safety relay [A61].
LED is offLED is flashingLED is onColorLED
Power supply is not connec-
ted.
-Power supply is connected.GreenON
-During external errors. See
the figure below for details.
System error. Replace the
unit if the error is not re-
moved after restart.
RedERR
-During external errors.Relays K1 and K2 are ener-
gized (instantaneous con-
tact).
GreenK1/K2
-During the time delay.Relays K3 and K4 are ener-
gized (delayed contacts).
GreenK3/K4
8
Fault tracing 39
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