Startup; Preparations - Siemens 1PH728 Operating Instructions Manual

Three-phase servomotor, ac compact drives

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Startup

Safety Information

Warning

Only expert persons should be entrusted with work on power installations.

Checking the insulation resistance

Note

There is no need to check the insulation resistance when commissioning. We only

recommend doing so after long storage or shutdown periods.

After long storage or shutdown periods, the insulation resistance of the windings must be

measured to ground with direct voltage.

Caution

Before you begin measuring the insulation resistance, please read the manual for the

insulation resistance meter you are going to use.

Warning

During the measurement, and immediately afterwards, some of the terminals are at

hazardous voltage levels and must not be touched.

Check the supply feeder cables connected in order to ensure that the line supply voltage

cannot be connected.

Siemens AG A5E00177602A

Operating Instructions V 2.0 1PH728

4-1

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