41 / 157V3.3 11.07.2007 KRC-AD-KRC2ed05-BA en
2. Product description
Overview
* The N-conductor is only necessary for the service socket option with a 400 V
power supply.
Caution!
If the robot controller is connected to a power system without a grounded
neutral, this may cause malfunctions in the robot controller and material dam-
age to the power supply units. The robot controller may only be operated with
grounded-neutral power supply systems.
Fig. 2-29: Power supply connection
The robot controller must only be connected to a power system with a clock-
wise rotating field. Only then is the correct direction of rotation of the fan mo-
tors ensured.
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