Control Techniques UD52, Руководство пользователя

Страница: 16 / 36

UD52 User Guide
Issue code: 52nu3
12
5 Setting Up the UD52
The instructions in this chapter apply when the Drive is being set up for the
first time with a UD52 fitted.
5.1 Initial setting up
The default supply voltage to the encoder from terminal 45 is +5.15V. If the
encoder requires 8V, set parameter
16.15
S
IN
-
COS
encoder– voltage select
at 1.
Enter the number of lines per revolution for the
SIN
-
COS
encoder in
parameter 16.12
S
IN
-
COS
encoder – No. of lines per revolution
. The value can
be only a power of 2.
5.2 Phase offset
When the Drive is operating in the Closed-loop Servo mode, the phase-
offset of the
SIN
-
COS
encoder in relation to the motor shaft must be
entered in parameter 16.09
S
IN
-
COS
encoder – phase offset
.
The phase offset can be entered in either of the following ways:
•
Performing an encoder phasing test. The UD52 measures the phase
error automatically and enters the value in
16.09 .
•
If the phase offset is known, you can enter the value manually in
parameter
16.09 .
See also
Aligning the encoder mechanically
in Appendix B
Advanced functions.
Encoder phasing test (Closed-loop Servo mode)
Warning
During the phasing test, the motor shaft rotates slowly.
Before starting, make sure it will be safe for the motor to
be run.
During the phasing test, the motor shaft rotates in two stages, as follows:
•
Initial jump in position by
1
N
revolution
•
Subsequent rotation by
4
N
revolution
Where
N
is the number of motor poles.
Examples
No. of poles Initial jump Subsequent rotation
2 1
2
revolution 2 revolutions
6 1
6
revolution 2
3
revolution