Programming
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Page
D-53
8
9
10
A
B
C
D
E
1
2
3
4
5
6
7
Functional Description
The convention in the 890 drive is given below :
0
50
100
150
200
250
300
350
400
U phase
V phase
W phase
The correct succession of motor phases is U ( or M1 ), V ( or M2 ), W ( or M3 ) if the motor rotates in a clockwise direction
looking to the motor shaft on the front side. U phase must ride through the 0 point in a positive way at a position of 0°
(electrical position). The position must also increase in that direction.
To polarise the motor, a current setpoint is ramped to the motor in a special configuration. This will cause the rotor to lock to a
specific position.
