Pu21003b_oi_e.doc / Apr-16
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3.
Construction and Electrical Connections
Z
Z
B
B
A
A
V
1
G
N
D
1
Z
Z
B
B
A
A
+
V
IN
G
N
D
Sub-D-9 (male)
Input
Screw terminal strip 9-pos.
Sub-D-9 (female)
Output
Screen
Screw terminal strip 9-pos.
Power supply
Encoder Supply
Screen
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
LED
D
IL
1
D
IL
2
1
2
3 4
5 6
7 8 9
9 8 7 6 5 4 3 2 1
X1
X2
X3
X4
3.1.
Power supply
The unit requires a DC supply between 5 and 30 volts.
The level of the supply voltage will at the same time determine the output swing
(voltage drop approx. 1.5 volts, i.e. 24 VDC power supply will result in a 22.5 V output swing)
The supply voltage can either be applied to the screw terminals marked “GND” and “+VIN” on
terminal strip X4, or also to the female SUB-D-9 output connector X3, using pin 5 (GND) and pin
4 (+VIN).
3.2.
Encoder supply
On the input side, pin 4 (+) and pin 5 (-) of the SUB-D-connector X1 can be used for encoder
supply, provided that a corresponding supply voltage is applied to the parallel screw terminals
V1 and GND1 of terminal strip X2. The unit itself does not provide any internal encoder supply.
3.3.
Function of the LEDs
The green LED on the front side is to indicate „power on“.
The yellow LED indicates directly the input impulses from input channel A.
