ABB ACS 502 Series User Manual

ACS 502 Installation & Start-up Manual 6-1
Chapter 6 – Fault Tracing
Warning and Fault
Messages
The following tables provides explanations of the ACS 502 and ACS 504
warning and fault messages.
Warning messages of
ACS 502/504
Warning message Possible reason Remedy
1 OVER TEMP The heatsink temperature is > 149°F (>65°C).
An OVER TEMP warning is normal if the
ambient temperature and load are near the upper
limits. If the ambient temperature and load are
not near the upper limits, then the following
should be checked: Restricted air flow caused by
dust or inappropriate installation, overloading, or
a component failure (fan, fuse, power
semiconductors). If this warning comes at the
start, it is possible that terminal X307 on the
Main Circuit Interface Card is loose.
Check that ambient temperature is < 104°F
(< 40°C). Check that the drive was not
overloaded for a long time. Check the fan and air
flow. Check the fuses on SNAT 7902 INP. Check
that T61 primary and secondary connections are
OK. Check the heatsink fins and remove any dust
or dirt. If the fault persists, contact a service
representative.
2 MOT STALL Parameter 30.18.8 (Stall Func) is set to
WARNING.
Refer to Fault 3 (Mot Stall).
3 MOTOR TEMP Parameter 30.1.3 (Mot Temp Flt Func) is set to
WARNING.
Refer to Fault 4 (Motor Temp).
6 UNDER LOAD Parameter 30.1.10 (Underload Func) is set to
WARNING.
Refer to Fault 7 (Under Load).
7 AI < MIN Parameter 30.1.2 (AI < Min Func) is set to
WARNING.
Refer to Fault 11 (AI < Min).
8 EEPROM WR Parameter storing to the EEPROM has failed. Try to store again. If warning occurs again, try to
restore factory settings. If the warning persists,
contact ABB Technical Support.

ABB ACS 502 Series Specifications

General

Brand	ABB
Model	ACS 502 Series
Category	Controller
Language	English