Power Electronics SD700SP Series, Hardware And Installation Manual

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POWER ELECTRONICS SD700SP
POWER CONNECTION
29
EN
Power connection and wiring
WARNING
The following installation recommendations are suitable for TN and TT grids. For IT grids consult
Power Electronics.
Otherwise, it could cause damage to the equipment and lead to injury to people.
Wiring and periodic inspections should be performed at least 10 minutes after disconnecting the
input power. To remove the front cover check that the DC Link red LED is off, then remove the
metallic cover and check with a multimeter the following measures:
• Measure between the output power busbars U, V, W and the cabinet and check that the voltage is
around 0V.
• Measure that the DC link ter, - and chassis voltage are below 30VDC.
Otherwise, you may get an electric shock.
The user input and output busbars are labelled according to the following diagram.
The AC input terminals L1, L2, L3 and PE (AC drive supply), output terminals U, V, W and PE (motor
supply), and the DC input terminals HVDC +, HVDC - must be introduced through the metallic panels
situated in the bottom part of the cabinet. Do not drill or mechanize the gratings. Otherwise, the drive
could reduce its cooling capacity.
The front metal panel corresponds to the motor cables and the rear metal panel to
the input cables; these are not delivered drilled or pre-cut to fulfil worldwide
configurations. Each cable must be equipped with its own cable gland or grommet
that prevent for dust or moisture penetration.
As standard, the input and output AC and DC terminals are made of tin plated
aluminium. If they are oxidized prior to its installation, the connections will be poorly
executed and will cause overheating. To avoid this effect is recommended to follow
the next steps.
Terminal lug connection
DC INPUT
SUPPLY