Hirschmann MACH4000 Series, User Manual

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Installation MACH4000
Release 14 06/2013
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 For the DC input of the DC plug-in power units at P1 and P2, use a
nominal rating of not more than 20 A - slow-blow characteristic.
 Do not use a redundant power supply at P1 and P2 simultaneously if one
of the “+” connections of P1 or P2 is grounded.
 For the redundant power supply, only use voltage sources whose
negative terminal is grounded.

For the current conductors at the voltage input of the DC plug-in power
units, use a cable cross-section of at least 2.5 mm² (North America:
AWG12).
 For the current conductors at the voltage input of the AC/DC plug-in
power units, use a cable cross-section of at least 1.0 mm² (North America:
AWG16).

Connect the power supply cable to the power input.

Install strain relief.

Switch on the plug-in power units to start up the device.
2.10 Wiring and assembling the signal contact
Figure 27: 4-pin signal contact
WARNING
This applies exclusively to device variants with a DC power supply:
FIRE HAZARD
Install a back-up fuse in both of the input voltage conductors if the negative
terminal of the voltage source power is not grounded.
Use a back-up fuse suitable for DC.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.
FAULT
RL2
RL1