Saf OPAL SS6 User Manual download pdf (Page 24)

OPAL SS6 Reduced Voltage Starters

Page 17

4.4 WIRING GUIDELINES

The electrical code requires that an approved circuit disconnecting device be installed in the

incoming AC supply, mounted in a location readily accessible to personnel installing or servicing

this equipment.

Power factor correcting capacitors MUST NOT be connected to the OPAL output. If desired, they

must be added ahead of the starter. Capacitors can be connected before starting or after the motor

has reached full speed. It is recommended that the Up-to-Speed option card be used to connect the

capacitors after full speed has been reached.

In-line contactors are not required; however they can be used on the line side or the motor side

without detriment to the starter. It is recommended that the contactor be sequenced to open and

close under no-load conditions to prolong the life of the contacts.

Size the power wiring as per local code. On long wire runs it is recommended to use a larger wire

size.

All three phases of the incoming power wires must pass through the same hole in the enclosure.

This rule also applies to all phases of the outgoing or motor wires.

If an electro-mechanical brake is used in the system, it must be powered from the line side of the

starter, to ensure full voltage to the brake.

For short-circuit fuse protection, we suggest referencing the table in Section 2.

4.5 START-UP

4.5.1 BEFORE POWER-UP

4.5.1.1 Ensure that all electrical connections are completed as shown on the schematics, and

that connections are properly tightened.

4.5.1.2 Read motor full load current from the nameplate and rotate SW2 to match the motor

full load current, according to the label attached or the current chart in Section 4.5.3.

4.5.1.3 Check 120 VAC control voltage to the OPAL unit.

4.5.1.4 Set RV1 and RV2 to mid-position, for 15 sec ramp time and 250% starting current.

4.5.1.5 Check link positions. The factory settings are current ramp mode and no jumper for

heavy duty.

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Saf OPAL SS6 User Manual Page 24