Specifications

SECTION 6 REGULAR MAINTENANCE

6.1 Buss Supply Power Control / IGBT Testing Procedure (1)

SECTION 5.5 _ TEST IGBT _ 1

Take measurements on threaded part below insulated chrome plated spacer.

With meter on “OHMS (:)” setting, measure resistance

by placing the red (+) lead on the Col

lector (C3 E1) and

the black (-) lead on the Emitter (C1) of the IGBT.

Connect a 9 VDC battery with the negative on the Emitter

(E1) and the positive on the Gate (G1). The meter should

The Gate should remain on once it has activated.

Short the Emitter / Gate (G1-E1) leads to turn the IGBT off.

IGBT Testing

With meter on “OHMS (Ω)” setting, measure resistance by

placing the red (+) lead on the Collector (C2 E1) and the

black (-) lead on the Emitter (C1) of the IGBT.

Connect a 9 VDC battery with the negative on the Emitter

(E1) and the positive on the Gate (G1). The meter should

The Gate should remain on once it has activated. Short the Emitter / Gate (G1-E1) leads to turn the IGBT o.

Take measurements on threaded part below insulated chrome plated spacer.

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