4
Electrical installation
22
Festo – GDCP-CMMD-AS-HW-EN – 1404NH – English
4
Electrical installation
4.1
Safety instructions
Warning
Danger of electric shock
Motor controllers are devices with increased leakage current (
>
10 mA). If wiring is
incorrect or the device is defective, high voltage can occur on the housing, which can
result in serious injury or even death if the housing is touched.
•
Before commissioning, and also for brief measuring and test purposes, connect the
PE protective conductor
Fig. 4.4:
–
to the earthing screw of the motor controller housing
–
to pin PE [X9.5], power supply.
The cross section of the protective conductor at PE [X9.5] must correspond at
least to the cross section of the external conductor L [X9.1].
•
Observe the regulations of the EN 60204-1 for the protective earthing.
Warning
Danger of electric shock
–
When the module or cover plate is not mounted on the card slot [EXT1/2]
–
When cables are not mounted to the plugs [X6.1/2] und [X9]
–
When connecting cables are disconnected when powered.
Touching live parts causes severe injuries and can lead to death. Before mounting and
installation work:
1. Switch off power to the electrical equipment via the mains switch and secure it
against being switched on again.
2. After switch-off, wait at least 5 minutes discharge time and check that power is
turned off before accessing the motor controller.
Warning
Danger of electric shock
This product can cause a DC current in the protective ground conductor. In cases where
an error current protection unit (RCD) or an error current monitoring device (RCM) is
used to protect against direct or indirect contact, only the Type B kind of RCD or RCM is
permitted on the power supply side of this product.
