CHAPTER 3 - INSTALLATION AND CONNECTION
54
ATTENTION!
For inside delta motor connection, the motor must have a nominal
voltage for delta connection. The inside delta motor connection
cannot be used for 690V line voltage.
NOTES!
1)
For motor inside delta connection, the SSW-06 Soft-Starter con-
nection cables to the power supply, fuses and/or the main con-
tactor must support the nominal 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 nominal current of
the motor.
2)
Due to the presence of high currents and large cable size re-
quirements, we also recommend the use of copper busbars for
connecting the Soft-Starter SSW-06 to the power supply.
3)
During starting, the motor current in relation to the Soft-Starter
current
is 1.50. However, at full voltage (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-S-
tarter, respect the connection diagrams shown in the figures above
according to the type of motor windings. If it is necessary to change
the motor rotating direction, only invert the SSW-06 Soft-Starter con-
nections to the power supply.
Keep 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 with inside 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 regula-
tions. For grounding, use cables with cross sections as indicated in
table 3.6. Make the ground connection to a grounding bar or to the
general grounding point (resistance
≤
10 ohms).
ATTENTION!
The Soft-starters SSW-06 can be used in power supply grounded
of the type TT or TN (IEC) or in power supply of the type IT, since
that grounded by an impedance.
DANGER!
Do not use the neutral conductor for grounding purposes. 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 Soft-Starter SSW-06 is used, see figure
3.14.
3.2.6 Grounding Connections
Table 3.12
- Connection of the Soft-Starter to the motor
Содержание SSW06
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