Technical information

– INTRODUCTION – – INFRANOR V ariable–Speed Drive –
21/04/95
01T00357
4
Page
3 – Settings
A. Setting P6 – P5 – P4
P6 – (ramp) to min. (P–)
P5 – (I RMS) to max. * (P+)
P4 – (I MAX) to max. * (P+)
Active
potentiometers
Effective connector
terminals
P6
P5
P4
P+
X3
1
2
3
6
5
4
* Valid for associations:
SMTB.S
VS Drive
Motor
220 / 18
220 / 25
220 / 45
LD 620 EL
LD 640 EG – 825EJ
LD 825 EJ
B. Setting Gain Using P2
In Set–up mode, the gain must be preset by increasing it to
noise level.
Reduce it to eliminate noise and attenuate the oscillations visi-
ble on the IDC. data item (pin 2 of X3)
P2
P+
X3
1
2
3
6
5
4
C. Setting Set Point Level Using P3
Adjust the set point level for the maximum speed of the custo-
mer application in Auto mode to the following value:
–
Caution: don’t measure the set point amplitude at X3
pin 3. It must be measured on X4 extension.
P3
P –
D. Setting Offset Using P1
Set the offset in Set–up Mode function [Offset]
The value of the position of the axis displayed on terminal
musn’t change.
P1
P+
P+
SMTB.Si
VS Drive
220 / 17
220 / 30
220 / 45
Axis controlled by
CAM/CAF board
Axis controlled by
3 AXES board
6 V 9 V
X3
1
2
3
6
5
4
E. Check settings one axis at a time (with different movements)
readjusting the gain setting if necessary.
–
On the oscilloscope, check the set point (pin 3 of X3), tachome -
ter feedback (pin 4 of X3) and the current (pin 5 of X3)
Caution
: Pin 3 of X3 is only used to display the speed of the
set point and not the amplitude.
P2
P+