Commissioning
Operating Manual PNOZ m EF 1MM
1003108-EN-11
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pnp proximity switch with resistor R = 10 kOhm
A12
B12
GND
S12
npn proximity switch with resistor R = 47 kOhm
A12
B12
GND
S12
6.4
Connection of an encoder
Proceed as follows when connecting the encoder:
}
The encoder can be connected via an adapter (e.g. MM A Mini-IO-CAB99) or directly to
the PNOZ m EF 1MM.
}
Use only shielded cables for all connections. Please refer to the chapter entitled "EMC-
compliant wiring".
}
Always connect GND on the encoder to GND on the Mini-IO connector.
}
If the encoder signals are not terminated with 120 Ohm in the frequency converter, the
encoder signals must be terminated with Z
0
= 120 Ohm between A and /A, B and /B, Z
and /Z.
}
Please refer to the information provided by the encoder manufacturer with regard to the
recommended max. cable length when taking into consideration
– Output frequency
– Supply voltage
– Operating temperature
– Existing interference
When calculating the maximum cable length, remember that the length of the adapter
cable must also be taken into account.
