Intelligent Technologies (
IT.
) QSNAP
20
Pub. No. MN05001001E
February 2002
Troubleshooting and Maintenance
Renewal Parts
The renewal parts for the
QSNAP are shown in the following table.
Table 19: QSNAP Renewal Parts
Troubleshooting
Table 20: Troubleshooting
Description Part
Number
J3 Jumper
Consult Factory
Starter Interface
Consult Factory
Auxiliary Contact
Consult Factory
Ground Fault Detector
Consult Factory
Auxiliary Plug
Consult Factory
Observation
Possible Cause/Corrective Action
IT.
starter attempts to
energize when RUN is
commanded but will not
stay in
Check 24V DC coil power supply.
IT.
starter will not energize
Control terminal block is not seated or connected properly on overload or
customer wiring.
Check 24V DC control power supply.
Verify that the permissive bit is = 1.
Check J3 wiring.
Make sure there is not a trip.
Reversing starter will not
energize
Unit already running in forward. The units are electrically and
mechanically interlocked.
Check J3 wiring.
Reversing starter will not
energize but forward does
Check J3 wiring.
Reversing interlock is jammed.
IT.
starter automatically
energizes on power-up
Check J3 wiring.