70
Isolating transformer
Fuse | AC |
Fuse | AC |
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.
