Rockwell Automation Allen-Bradley PowerFlex 4M, Руководство по обслуживанию оборудования

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Rockwell Automation Publication 20P-TG003B-EN-P - September 2021 33
Component Test Procedures Chapter 2
5. With the digital multimeter set to “diode test”, measure each connection
point on the pulse transformer board listed in the tables below. If any of
the actual measurements are out of tolerance, replace the pulse transformer
board.
Table 8 - Armature Pulse Transformer Primary Measurements for Regenerative and Non-
Regenerative Drives
Table 9 - Armature Pulse Transformer Primary Measurements for Regenerative Drives
Check the Field SCR/Dual Diode Module
The field supply consists of a dual pack SCR/dual diode module arranged in a
single–phase full wave rectifier configuration. Malfunction of either of these
components may cause various responses including field and velocity related
faults, or blown fuses. The following procedures can be used if field bridge
malfunctions are suspected.
1. Read the General Safety Precautions on page 10 .
2. Remove and lock-out all incoming power to the drive. See Remove Power
from the Drive on page 42 .
3. Remove the protective covers. See Protective Cover Removal and
Installation on page 43 .
4. Verify that contactor power (if used) is removed.
5. Verify that power to an external field supply (if used) is removed.
6. Disconnect the field wires from C1 and D1. See Figure 10 on page 34 .
For SCR (+) Meter Lead (-) Meter Lead Meter reading: Connector XY Pinout
1/01 XY-8 XY-1
0.41

4/04
XY-8 XY-4
2/02 XY-8 XY-2
5/05
XY-8 XY-5
3/03 XY-8 XY-3
6/06
XY-8 XY-6
For SCR (+) Meter Lead (-) Meter Lead Meter reading: Connector XY Pinout
1 XY-7 XY-1
0.41

4 XY-7 XY-4
2 XY-7 XY-2
5 XY-7 XY-5
3 XY-7 XY-3
6 XY-7 XY-6
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