Elmo DBP SERIES manual Isolating transformer

Models: DBP SERIES

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Isolating transformer

70

Isolating transformer

Fuse

AC

Fuse

AC NON-ISOLATED DBP

Fuse

AC

 

+Vs

 

DC power common is internally

 

connected to control common

 

Heatsink

A. External fuses are needed for 3U size only

Guide lines for connecting a non isolated amplifier with an isolating power transformer

Ground:

DC power common

Motor chassis

Amplifier's heat sink

Do not ground:

Control common - It is internally connected to the power common. Grounding the control common will create a ground loop.

Caution:

-If source of motor command is grounded, use amplifier's differential input. Otherwise, a ground loop is created.

DBP - Rev 6/93

Page 71
Image 71
Elmo DBP SERIES manual Isolating transformer