PowerTec 2000C Instruction Manual page 64

8.0
NON REGENERATIVE DRIVES
MECHANICAL
INSPECTION
STATIC ELECTRICAL
TESTS WITH NO
POWER
© copyright 1995 by
Powertec Industrial Motors
MODEL 2000/3000/4000
STARTUP PROCEDURE
This startup procedure is tailored to the 2000, 3000, and 4000 Series
drives. It pertains only to the single quadrant, non regenerative drive. Do not
attempt to use this procedure for regenerative units. Certain aspects of the
startup are different for the 1000 Series, therefore refer to the proper startup
procedure for your drive.
1. Look over the controller thoroughly for loose connections, bent or
broken components, etc.
2. Check specifically the high voltage, high current connections as
follows:
- capacitor bus screws
- motor T1, T2, T3 lead connections
- AC line connections to tops of fuses
3. Motor shaft, coupling alignment, bolts in feet to mounting founda-
tion. Make sure the motor frame is connected to earth ground with a bonding
wire.
1. Motor connections
- Make certain T1 is connected to T1 on control, T2 to T2, T3 to T3
and that they are tight.
- Look at the feedback encoder cable and ensure that it is seated and
that the wire colors match those on the opposite side of the connector in the
conduit box.
2. Temporarily remove the screw in the upper left corner of the current
regulator board and slide a piece of paper between the bottom of the board
and the mounting stud. This connection grounds the common
of the controller in normal operation but you should check for unintentional
grounds before powering up.
- Use voltmeter to check resistance to ground from each terminal on
connectors TB1, TB2, and TB3. If any grounds are found pull off the connec-
tors and check each wire to find the ground point. Except under unusual cir-
cumstances, there should not be any grounds except to the screw hold-down on
the upper left corner of the current regulator board. Call the factory for verifica-
tion of any other grounding found.
- Use ohmmeter to check L1, L2, L3, and T1, T2, T3 to ground to be
sure no grounds are present. On very sensitive meters, some slight leakage to
ground could be present. This should always be at least 1 megohm. If it is less
than 1 megohm, call the factory before proceeding.
- Remove the isolating paper and replace the screw in the current regu-
lator board once all terminals are verified to be isolated from ground.
Page 8-1