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Checking pg pulses – Yaskawa GPD 506/P5 Section Two User Manual

Page 29

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PP.P5G5.02Troubleshoot

Page 29

Rev. 06/11/2003

Checking PG Pulses

Step 13 (for GPD 515/G5 models)

Test Equipment - Ungrounded oscilloscope with x10 probe.

Set scope to 5V/division and .01mSeconds, in order to observe the PG pulses.

3. Command the inverter to run in the forward direction with a reference of 60 Hz.

The “A” pulse (channel 1) should lead the “B” pulse (channel 2) by 90°.
Compare the waveforms with the picture below.

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