Troubleshooting and maintenance, Renewal parts, Troubleshooting – Eaton Electrical QSNAP User Manual

Page 24

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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.

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