Rockwell Automation MinPak Plus DC Drive User Manual User Manual

Page 37

5:6

Remove AĆC power at the disconnect

Remove leads connected to terminals

L1, L2, A1, A2, and if used, F1 and F2

Check for a ground condition at termiĆ

nals L1, L2, A1, A2 and F1, F2 of Drive.

Also, check for a ground condition in

the leads that were removed in the preĆ

vious step.

Were

any grounds

found

Check for any ground conditions on all

terminals of the remote operator buffer

kit terminal strip. See Note 2.

Were

any grounds

found

Check for any shorts in power cube and

diode bridge of field supply kit.

Were

any shorts

found

See Note #1

Start

Yes

Repair

Grounds

Fixed?

Done

Yes

Repair

Grounds

Fixed?

Done

Yes

Replace

Faulty

Device

Fixed?

Done

Yes

See Note #1

Note #1: Contact local sales/service office.

*Ground conditions = 500 KĆOhms or less to ground.

Note #2: Depending on how the meter is connected to

the terminals of the Remote Operator Buffer Kit, TermiĆ

nals 65, 66, 39, 67,35, 38 and 32 may read 10K ohms

to ground.

DANGER

SOME OF THE FOLLOWING CHECKS AND PROCEDURES REQUIRE THE POWER TO BE ON. EXERCISE

EXTREME CARE AS HAZARDOUS VOLTAGE EXISTS. FAILURE TO OBSERVE THIS PRECAUTION COULD

RESULT IN SEVERE BODILY INJURY OR LOSS OF LIFE.

Figure 5Ć4. Circuit Breaker or Line Fuses Open When Power is Applied.