Recommended Set-Ups - WEG SSW-08 Manual Del Usuario

Installation and Connection

3.3 RECOMMENDED SET-UPS

Some recommended set-ups are shown here and they can be completely or partly used.
The main warning notes for all the recommended set-ups are shown below and are described
in the schemes by their respective numbers.
NOTE!
1 For the protection of the whole electrical installation it is necessary to use fuses
or circuit breakers. The use of ultra-rapid fuses is not required for the operation
3
of the Soft-Starter SSW-08 but they are recommended for the complete SCR
protection.
2 The transformer "T1" is optional and must be used when there is a difference
between the line voltage and the electronic power voltage.
3 To protect the motor from damage by possible short-circuits in the power circuit
of the Soft-Starter SSW-08 use an isolating contactor (K1) or circuit-breaker (Q1).
4 Start push-button.
5 Stop push-button.
6 Start/Stop switch, remember that when the command via two-wire digital input
is used (the switch is normally open with retention) every time the power supply
is restored after any fault the motor will start immediately if the switch remains
closed.
7 In case of maintenance of the Soft-Starter SSW-08 or the motor it is necessary
to remove the input fuses or disconnect the power supply to ensure the complete
equipment disconnection from the power supply.
8 The emergency stop can be used by disconnecting the electronics power supply.
9 Undervoltage release for the Q1 power isolation circuit breaker.
20 | SSW-08