PNOZ X2.1C
Operating Manual PNOZ X2.1C
1003973-EN-07
10
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Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
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Do not switch low currents using contacts that have been used previously with high cur-
rents.
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When connecting magnetically operated, reed proximity switches, ensure that the max.
peak inrush current (on the input circuit) does not overload the proximity switch.
When operated in an industrial environment, outside of vehicles
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Ensure the wiring and EMC requirements of EN 60204-1 are met.
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The power supply must comply with the regulations for extra low voltages with protect-
ive electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
Important for detection of shorts across contacts:
As this function for detecting shorts across contacts is not failsafe, it is tested by Pilz during
the final control check. If there is a danger of exceeding the cable runs, we recommend the
following test after the installation of the device:
1. Unit ready for operation (output contacts closed)
2. Short circuit the test terminals S12, S22 for detecting shorts across the inputs.
3. The unit's fuse must be triggered and the output contacts must open. Cable lengths in
the scale of the maximum length can delay the fuse triggering for up to 2 minutes.
4. Reset the fuse: remove the short circuit and switch off the supply voltage for approx. 1
minute.
Preparing for operation
Supply voltage
AC
DC
A1
A2
L1
N
A1
A2
L+
L-
Input circuit
Single-channel
Dual-channel (with detection of
shorts across contacts)
E-STOP
S1
S22
S21
S12
S11
L+
A1
S1
S22
S21
S12
S11
Safety gate
S1
S22
S21
S12
S11
L+
A1
S1
S2
S12
S11
S22
S21
