Rockwell Automation 2361 90A Field Board Replacement User Manual
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90A Field Board Replacement (for 1250, 1650, and 3000A 1395 DC Drives)
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Preliminary Steps
Before replacing the field board, shut off the drive power; wait
five minutes for the voltage to discharge; open the disconnect bay
door; and remove the Lexan™ shielding.
Removing the Field Board
1.
Using a voltmeter, test the voltage across the three phases,
then across the field board terminals (F1, F2, L1, and L3).
2.
Loosen the thumb screws to lower the control board panel.
3.
Loosen the thumb screws to lower the feedback board panel.
4.
Observe the board wiring and tag wires as necessary.
5.
Disconnect J1.
6.
Unscrew and disconnect the leads to F1, F2, L3, and L1.
7.
Disconnect the gate leads G11, G12, G21, and G22.
8.
Unscrew the six mounting screws and remove the board.
!
ATTENTION: If there is any voltage present,
remove the source of the voltage and check for
voltages again before proceeding to the next step.
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