Drives
3.
Ref.1912
· 137 ·
DDS
HARDWARE
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. H3/77
Factory settings of the dip-switches ·DS1|DS2·.
A1
1
1
X7-ANALOG I/Os X6-DIGITAL I/Os
P2P1
DS1
DS2
MANDATORY. The status of the dip-switches DS1|DS2 must not be
changed by the operator.
F. H3/78
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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