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.