GE DS3800HRDB Logic control module

Certain precautions should be taken when powering the 6410 drive from a regulated power supply. The 6410’s bipolar chopper output stage draws current from the DC supply in the form of pulses with fast rise and fall times. This may be a problem for some regulated supplies designed to drive loads having relatively constant or slowly varying current drain. If a regulated supply is used and problems are encountered, a 470uf capacitor should be placed across the DC+ and DC-lines between the power supply and 6410.

Ideally this capacitor is located 

close to the 6410 drive but it can be located near the power supply and connected to the 6410 with a twisted pair no longer than 3 feet in length. The capacitor should have a 20KHz ripple current rating of at least the 6410’s current setting and a voltage rating of 1.3 times the nominal bus voltage. A second precaution involves regenerated power (see section C.1.5). Regulated supplies are usually not designed to absorb power. This might cause their output voltage to rise during regeneration and lead to power supply and/or 6410 damage. The same considerations and solutions described in section C.1.5 apply.

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