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CHAPTER 3 - INSTALLATION AND CONNECTION
43
ATTENTION!
For the connection inside the delta of the motor, the motor must have a
delta connection in the desired voltage.
NOTES!
1)
In the motor inside delta connection, the SSW-06 Soft-Starter
connection cables to the power supply, fuses and/or the main
contactor must support the rated current of the motor. The motor
connection cables to the Soft-Starter and/or the external By-pass
contactor connection must support 58% of the rated current of the
motor.
2)
Due to the presence of high currents and large cable sizes
requirements, we also recommend the use of copper busbars for
connecting the Soft-Starter SSW-06 to the power supply.
3)
During the start of the motor current in relation to the Soft-Starter is
1.50. However in full voltage condition (after the start time of the
motor) the current relation is 1.73.
ATTENTION!
Pay attention to the connection of the motor to the SSW-06 Soft-Starter,
respect the connection diagrams shown in the figures above according
to the type of motor windings. If it is necessary to change the motor
speed direction, only invert the SSW-06 Soft-Starter connections to the
power supply.
Maintain the electronics turned off during the connection changes.
ATTENTION!
Ensure correct setting of Parameter P150 before the motor is switched
ON. Soft-Starter SSW-06 may be damaged, when this parameter setting
is not correct
P150
Action
0 (Inactive)
Soft-Starter SSW-06 with standard connection to motor
1 (Active)
Soft-Starter SSW-06 inside of the delta motor connection
DANGER!
The Soft-Starter SSW-06 must be grounded for safety purposes (PE).
The earth or ground connection must comply with the local regulations.
For grounding, use cables with cross section as indicated in Table 3.6.
Make the ground connection to a grounding bar or to the general
grounding point (resistance
10 ohms).
DANGER!
The AC input for the Soft-Starter SSW-06 must be grounded.
DANGER!
Do not use the neutral conductor for grounding purpose. Use a specific
ground conductor.
ATTENTION!
Do not share the ground wiring with other equipment that operate with
high currents (for instance, high voltage motors, welding machines, etc).
When more than one self-starter SSW-06 used, see 3.14 figure.
3.2.6
Grounding Connections
Table 3.10 - Connection of the Soft-Starter to the motor
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]