25
INSTALLATION
3
3.2 - ELECTRICAL
INSTALLATION
3.2.1 - POWER/
GROUNDING
CONNECTIONS
ATTENTION!
The connection of the motor to the Soft-Starter must be realized
carefully. Follow strictly the connection diagrams according to
the winding types shown in figure 3.5 and item 6.4.1.
If reversal of motor direction of rotation is required, change
the Soft-Starter connection to the line supply. Ensure that
power is switched OFF while connections are changed.
Do not start motor with wrong P28 content:
OFF = standard connection
ON = within the motor delta connection
DANGER!
AC input disconnect: provide an AC input disconnecting switch
to switch OFF input power to the Soft-Starter.
This device shall disconnect the Soft-Starter from the AC input
supply when required (e.g. during maintenance services).
DANGER!
The AC input disconnect cannot be used as an emergency
stop device.
DANGER!
Be sure that the AC input power is disconnected before
making any terminal connection.
DANGER!
The information below will be a guide to achieve a proper
installation. Follow also all applicable local standards for
electrical installations.
ATTENTION!
Provide at least 10 in (0.25m) spacing between low voltage
wiring and the Soft-Starter. , line or load reactors, AC input
power, and AC motor cables.
ATTENTION!
Control of overvoltage in the line that supply the Soft-Starter
must be made using protective of surge with voltage of
550Vac (for models 220 - 440Vac) and 680Vac (for models
460 - 575Vac) connection phase to phase, and absortion
energy capacity of 80 joules.
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