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Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 5 Electrical installation 26.02.2003
5 Electrical installation
Warning and safety instructions
Caution
♦ Check that the VSD and motor are correctly sized for the supply voltage. Check
that the VSD corresponds to at least the motor output
♦ Check that the mains cables are correctly sized for the anticipated use
♦ Check that appropriate circuit breakers or fuses exist between the mains and
the VSD
Warning
Never use high-voltage insulation test on any cables connected to the VSD.
Danger
♦ Always isolate the power cables before connecting them to the VSD
♦ Check that the terminal cover was replaced properly after connecting the power
and motor cables
♦ Never switch on the VSD with the cover open
♦ Always use insulated tools when working on the incoming power supply and
the motor terminals
5.1 Wiring of SED2 IP54
U
V
PE
L2
L1
L3
PE W
I/O terminals
Metal cable glands only
Metal or plastic cable glands
5192Z44en
Motor cable shielded
Signal and control cables shielded
Potential equalization
Mains cable
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