Danfoss Metasys N2 Service Guide

10.2.7 Motor Terminal Block
To remove or reinstall the motor terminal block, use the
following steps. Refer to Illustration 10.6.
Disassembly
1. Remove the mains input terminal block. Refer to
chapter 10.2.6 Mains Input Terminal Block.
2. Remove the optional brake terminal, if present.
Refer to chapter 10.2.8 Brake Terminal Block
(Optional).
3. Disconnect wiring to the motor, and remove the
U/V/W terminal label.
4. Remove the EMC shield between the mains input
and motor terminal blocks by removing 2 screws
(T25).
5. To remove the U motor busbar:
5a Remove 1 thread-forming screw (T25)
from the middle of the U busbar.
5b Unfasten 1 screw (T30) from the current
sensor end of the busbar.
6. To remove the V motor busbar:
6a Remove 1 thread-forming screw (T25)
from the middle of the V busbar.
6b Unfasten 1 screw (T30) from the current
sensor end of the busbar. Note that the
V screw is shorter than the U and W
screws.
7. To remove the W motor busbar:
7a Remove 1 thread-forming screw (T25)
from the middle of the W busbar.
7b Unfasten 1 screw (T30) at the current
sensor end of the busbar.
8. Remove 2 screws (T25) at the bottom of the
motor terminal block.
9. Remove the motor terminal block by sliding it
down to release it from the 2 metal retaining
clips.
10. Remove the 3 cylinder busbars, 1 from the center
of each current sensor.
Reassembly
Tighten hardware according to chapter 14.1 Fastener Torque
Ratings.
1. Position the motor terminal block by sliding it
upward under the 2 metal retaining clips.
2. Fasten 2 screws (T25) at the lower end of the
motor terminal block.
3. Place 3 Nomex tubes in the drive, 1 in the center
of each current sensor. Place the shorter tube
(marked with a red line) through the middle
current sensor.
4. Place 3 cylinder busbars in the drive, 1 inside
each Nomex tube. Place the shorter busbar
through the middle Nomex tube.
5. To replace the U motor busbar:
5a Slide the insulator sleeve over the U
busbar (if not already in place).
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. To replace the V motor busbar:
6a Fasten 1 screw (T30) in the current
sensor end of the busbar. The V bolt is
shorter than the U/W bolts.
6b Fasten 1 thread-forming screw (T25) in
the middle of the busbar.
7. To 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 2 screws (T25).
9. Reconnect wiring to motor terminals, and replace
the U/V/W terminal label.
D1h/D3h/D5h/D6h/J8 Drive Di...
VLT
®
FC Series, D1h–D8h, Da2/Db2/Da4/Db4, E1h–E4h, J8/J9
140 Danfoss A/S © 02/2019 All rights reserved. MG94A502
1010

Danfoss Metasys N2 Specifications

General

Brand	Danfoss
Model	Metasys N2
Category	DC Drives
Language	English