Wiring
Operating Manual PMCprimo MC
1003813-EN-03
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6
Wiring
6.1
Wiring guidelines
Please note:
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Cable cross sections for field connection terminals in mm
2
:
– Digital inputs/outputs, supply voltage: 0.5 (AWG20) ... 1.0 (AWG18),
crimp connectors with plastic collar
0.75 mm
2
[H 0.75/16D] metrical. Ferrule length 12 mm, stripping length 14 mm
0.5 mm
2
[H 0.5/16D] metrical. Ferrule length 10 mm, stripping length 12 mm
Inputs
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Appropriate wiring must be used to exclude short circuits between the inputs or to a sup-
ply line.
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Cables must be shielded if the signals are used as reference inputs. Other signal lines do
not need to be shielded.
Outputs
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If short circuits occur between the cable from the output to the load and a supply line, it
will no longer be possible to switch off the load.
Possible remedy: Use separate multicore cable for supply voltages.
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Use appropriate wiring to exclude short circuits between the outputs.
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The actuators may be connected using unshielded cables.
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The outputs do not need suppression for inductive loads.
Cable material
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Use copper wiring.
6.2
Supply voltage
The digital outputs and the unit need a 24 VDC supply.
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When selecting the power supply, please refer to the requirements stated under “Tech-
nical Details”.
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The power supply must be able to bridge a power outage of 20 ms.
WARNING!
Electric shock!
Safe electrical isolation must be ensured for the external power supply that
generates the supply voltage. Failure to do so could result in electric shock.
The power supplies must comply with EN 60950-1, 05/2006, EN 61558-2-6,
11/1997.
