This figure describes the ERR LED indications in fault situations.
Cross fault or wiring fault1
Line fault across start button2
Potentiometer or adjustment failure3
Simultaneity error4
Under or over voltage5
If there is a fault, the emergency stop safety relay [A61] can go into a fault mode. If this
occurs, you must restart the relay. Switch off the external power supply of the relay and
then switch it back on.
If you cannot reset the emergency stop safety relay with the emergency stop reset button
[S62], check the reset circuit connections. See the circuit diagrams delivered with the drive.
Check the safety circuit connections against the circuit diagrams, if the drive generates one
or more of these faults:
• STO hardware failure (5090)
• Safe torque off 1 loss (FA81)
• Safe torque off 2 loss (FA82)
■ ACS880-07 drives, frames R6 to R11 and ACS880-17/37 drives, frames
R8 and R11
This table describes the status LEDs of the extension safety relay [A62].
LED is onLED
Power supply is connected. Relay K1 is energized.K1
Power supply is connected. Relay K2 is energized.K2
For more fault tracing possibilities, see the hardware and firmware manuals of the drive.
Reporting problems and failures related to safety functions
Contact ABB.
40 Fault tracing