Drives
3.
180
Ref.1912
DDS
HARDWARE
· 174 ·
Dip-switches · DS1|DS2 ·
Adjustment 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:
F. H3/132
Factory settings of the dip-switches · DS1|DS2 ·.
A1
1
1
X7-ANALOG I/Os X6-DIGITAL I/Os
P2P1
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.
F. H3/133
Adjustment outputs.
5
4
1
7
+15 V DC
X7
GND
Vref
R'
R'
Rext
DRIVE
6
-15 V DC
8
10
Range ± 10 V
Rext. R’
1 k 0
5 k 820
10 k 1.8 k
20 k 3.3 k
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