ABB ACS 501 Installation & Start-Up Manual page 55

Chapter 5 – Fault Tracing
Figure 5-3 Overcurrent Fault Flowchart
Overcurrent
trip.
Remove
mechanical
fault.
Restart
system.
Check for
faults.
Internal fault.
Contact ABB
Technical Support.
5-8
Stop the drive. Disconnect ACS 501 from input power. If Auto Reset is on,
death or serious injury could result if power is not disconnected before
removing a mechanical fault.
Yes
Motor
stalled?
No
Disconnect
ACS 501 from
input power.
Motor
short circuit/
ground fault?
No
Cable
short circuit/
ground fault?
No
Reconnect
ACS 501
to input line power.
Restart
system.
Yes
Overcurrent
trip again?
No
Check for
faults.
Overcurrent
Code
1
2 & 3
4
Yes
Yes
Check and/or
replace motor.
Check and/or
replace cable.
Reconnect
ACS 501
to input line power.
Restart
system.
ACS 501 Installation & Start-up Manual
Description
265% x I Exceeded
N
Gate Drive Fault
Interference Fault