Fagor DDS Series Hardware Manual page 174

  Drives
3.
180
DDS
HARDWARE
Ref.1912
· 174 ·
Dip-switches · DS1|DS2 ·
F. H3/132
Factory settings of the dip-switches · DS1|DS2 ·.
MANDATORY. The operator must not change the state of the dip-switches
·DS1, DS2· located on the left when looking at the front of the unit.
Adj ustment outputs
With these outputs and a potentiometer, the user can obtain a variable
analog voltage for adjusting the Power Drive System during setup.
The voltage, with no load, at these pins is ±15 V DC.
The electrical circuit necessary to obtain a reference voltage and the
recommended resistance values to obtain an approximate range of ±10 V
DC for the Vref are described next:
GND
R'
Rext
Vref
R'
Range ± 10 V
Rext. R'
0 
1 k
820 
5 k
10 k 1.8 k
20 k 3.3 k
F. H3/133
Adjustment outputs.
1
DS1
DS2
A1
1
DRIVE
X7
1
4
5
6
-15 V DC
7
+15 V DC
8
10