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Hardware Installation
Encoder electronics
Note
All encoders whose output circuitry allows a load with respect to ground and meets
the required input level can be connected.
Encoders with open-collector outputs can also be connected with external pull-up
resistors.
To change the direction of counting, A* and B* must be interchanged.
4-10
External pull-up
resistors
R
R
R
Fig. 4-6. Connection of Encoders with Asymmetrical Signals:
Open-Collector Encoder Output Circuit
Receiver electronics
L+
Connector
X2/X4
A*
8
15
6
13
4
11
B*
2
L+
9
Z*
M
EWA 4NEB 811 6120-02a
IP 240
M
Channel set to
24 V and
asymmetrical
encoder
signals
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