21 of 132
M-SV-001-EN Rev.E
Introduction
1. Install the DC bus test harness as described
in the “Installation of the DC Bus Test Harness”
section of this manual.
2. Reapply AC power to the compressor.
3. Using an appropriately rated voltmeter with
the 1000VDC range selected, insert the positive
voltmeter lead into the DC(+F) test harness lead,
and the negative voltmeter lead into the DC(-)
test harness lead. Refer to Table 2 (Expected DC
Bus Voltage) for expected DC bus voltage.
The DC(+F) lead connects to the DC output from
the F1 Fuse on the Soft Start Board.
4. Insert the positive voltmeter lead into the DC
(+) test harness lead, and the negative voltmeter
lead into the DC(-) test harness lead. Refer to
Table 2 (Expected DC Bus Voltage) for expected
DC bus voltage.
5. Measure the 15VAC from the Soft Start
Board by placing the voltage meter leads into
the 15VAC leads. The 15VAC leads connect to
the 15VAC output from the Soft Start Board
transformer.
The DC(+) lead connects to the DC bus input to
the Soft Start Board.
6. When finished, isolate compressor power and
remove the DC bus test harness.
1.9.2 DC Bus Test Harness
Use
Table 2 - Expected DC Bus
Voltage
Compressor Nameplate
AC Voltage
Acceptable AC Voltage Range
Expected DC Bus
Voltage Range
575 VAC 518 - 632 VAC 700 - 853 VDC
460 VAC 414 - 506 VAC 559 - 683 VDC
400 VAC 360 - 440 VAC 486 - 594 VDC
380 VAC 342 - 418 VAC 462 - 564 VDC
1. Isolate the compressor power as described
in the “Electrical Isolation of the Compressor”
section of this manual and remove the top side
covers.
2. Remove the DC bus test harness from the cable
passage.
3. Disconnect the two plugs of the DC bus test
harness from the Soft Start Board.
4. Disconnect the two plugs of the compressor
cable harness from the corresponding sockets of
the DC bus test harness.
5. Reconnect the J1 and J7 connectors on the Soft
Start Board.
6. Reinstall the top covers.
1.9.3 Removal of the DC
Bus Test Harness
• • • CAUTION • • •
Use your ESD wrist strap before touching the Soft Start Board or any electronic components.
To Next Page
Loading...
Need help?
General
