Danfoss VLT FC Series, Руководство по обслуживанию

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11.2.9 Motor Terminal Block
To remove or reinstall the motor terminal block, use the
following steps. Refer to
Illustration 11.3 and
Illustration 11.4 .
Disassembly
1. Remove the mains input terminal block. Refer to
chapter 11.2.6 Mains Input Terminal Block .
2. Remove the optional brake terminal, if present.
Refer to
chapter 11.2.8 Brake Terminal Block
(Optional) .
3. Disconnect wiring to the motor, and remove the
U/V/W terminal label.
4. Remove the EMC shield:
4a Remove 1 screw (T25).
4b Lift the EMC shield from the drive.
5. Remove the U motor busbar:
5a Remove 1 thread-forming screw (T25)
from the middle of the U busbar.
5b Unfasten 1 bolt (T40) from the U busbar.
6. Remove the V motor busbar:
6a Remove 1 thread-forming screw (T25)
from the middle of the V busbar.
6b Unfasten 1 bolt (T40) from the V busbar.
7. Remove the W motor busbar:
7a Remove 1 thread-forming screw (T25)
from the middle of the W busbar.
7b Unfasten 1 bolt (T40) from the W
busbar.
8. Remove 3 current sensor cylinder busbars.
9. Remove 2 screws (T25) from the bottom of the
motor terminal block.
10. Remove the motor terminal block by sliding it
down to disengage it from the 2 metal retaining
clips.
Reassembly
Tighten fasteners according to chapter 14.1 Fastener Torque
Ratings .
1. Position the output terminal block by sliding it
upward under the 2 metal retaining clips on the
power terminal mounting plate.
2. Fasten 2 machine screws (T25) at the bottom of
the terminal block.
3. Position the 3 Nomex tubes, 1 in the middle of
each current sensor.
4. Insert 3 cylinder busbars, 1 inside each Nomex
tube.
5. Replace the U motor busbar:
5a Slide the insulator sleeve over the U
busbar.
5b Fasten 1 screw (T30) in the current
sensor end of the busbar.
5c Fasten 1 thread-forming screw (T25) in
the middle of the busbar.
6. Replace the V motor busbar:
6a Fasten 1 screw (T30) in the current
sensor end of the busbar.
6b Fasten 1 thread-forming screw (T25) in
the middle of the busbar.
7. Replace the W motor busbar:
7a Fasten 1 screw (T30) in the current
sensor end of the busbar.
7b Fasten 1 thread-forming screw (T25) in
the middle of the busbar.
8. Position the EMC shield between the mains input
terminal block and motor terminal block and
secure with 1 screw (T25).
9. Replace the optional brake terminal, if present.
Refer to
chapter 11.2.8 Brake Terminal Block
(Optional) .
10. Replace the mains input terminal block. Refer to
chapter 11.2.6 Mains Input Terminal Block .
11. Reconnect wiring to the motor terminals, and
replace the U/V/W terminal label.
D2h/D4h/D7h/D8h/J9 Unit Dis... Service Guide
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