GV21002d_e.doc / Sep-13
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2. Connection Diagram
Z
Z
B
B
A
A
5
.2
V
G
N
D
Input 2
1
2
3
4
5
6
7
8
LED
DI
L
Sw
itc
h
1
2 3 4 5 6
7 8 9
1
2 3 4
5 6
7 8
Z
Z
B
B
A
A
G
N
D
2
4
V
Output 2
Z
Z
B
B
A
A
5
.2
V
G
N
D
Terminal strip 9-pos.
Input 1
Terminal strip 8-pos.
Z
Z
B
B
A
A
G
N
D
2
4
V
Output 1
9
8 7 6
5 4
3 2 1
8
7 6
5 4
3 2 1
3
2
1
2
1
Control 1
GND
24V
GND
Power supply
Control 2
X1
X2
X3
X4
X5
X6
Connectors are mechanically
coded and therefore not
interchangeable
Terminal strip 9-pos.
Terminal strip 8-pos.
2.1. Power supply
The unit requires a 12–30 volts DC power supply via the 2-position power terminal on the front
side (terminal 1 = +, terminal 2 = GND)
The current consumption is about 50 mA (aux. voltages and outputs unloaded)
2.2. Control inputs
The control inputs are accessible via the 3-position terminal strip on the front. They are in LOW
state when unconnected. To switch the inputs to HIGH state, a signal from +10 to +30 volts
must be applied to the corresponding terminal.
2.3. Encoder inputs
The input lines can be configured for different requirements by DIL switch setting. The
following input formats can be used:
Single-ended signals (asymmetric), channels A, B and Z only without inverted inputs
(Level is HTL 10–30 volts in general, exceptionally also TTL, see 2.4)
Differential signals (symmetric), channels A, /A, B, /B, Z, /Z
(levels either according to RS422 standard or TTL or HTL 10-30 volts)