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Installation Guidelines
Power Connection for Programmers
Every group of cabinets should have a grounded socket for the power supply to the programmers.
The sockets should receive their power supply from the distributor that is also connected to the
cabinet's protective ground.
Cabinet Lighting
Do not use any fluorescent lamps inside a cabinet. They can cause noise interference. If you must
use fluorescent lamps, then carry out the measures shown in Figure 3-27. It would be better to use
LINESTRA® (incandescent) lamps.
Figure 3-27. How to Reduce Noise Interference Caused by
EWA 4NEB 812 6120-02
Screen grid above the lamp
Completely shielded cable
Metal-encased switch
Main filter or shielded system supply line
Fluorescent Lamps in a Cabinet
S5-100U
3-35
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