Phoenix Contact 1201132, User Manual

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CONTACTRON Speed Starter
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PHOENIX CONTACT 109908_en_00
– When installing multiple CONTACTRON Speed Starters, do not connect the grounds
of the CONTACTRON Speed Starters in series but connect each CONTACTRON
Speed Starter to ground. The following pictures show the correct and wrong ways to
connect the grounds.
Figure 5-7 Wrong wiring setup for ground wires
Figure 5-8 Correct wiring setup for ground wires
Pay particular attention to the following points:
– Do not remove the IT jumper while the power is on.
– Removing the IT jumper also cuts the capacitor conductivity of the surge absorber to
ground and the built-in EMC filter capacitors. Compliance with the EMC specifications
is no longer guaranteed.
– Do not remove the IT jumper if the mains power is a symmetrical grounded power
system in order to maintain the efficiency for EMC circuit.
– Remove the IT jumper when conducting high voltage tests. When conducting a high
voltage test to the entire facility, disconnect the mains power and the motor if the
leakage current is too high.
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