Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC User Manual

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63

Application Notes

ATTENTION:

The DC3 Drive is intended to operate

at a predetermined minimum speed. If the application
requires zero speed operation, the user is responsible for
assuring safe conditions for operating personnel by
providing suitable guards, audio or visual alarms, or
other devices. Failure to observe these precautions
could result in bodily injury.

ƽ

Reversing

A dynamic brake may be used when reversing the motor
direction (Figure 17, page 64). Use a three-pole, three-
position switch rated for at least the maximum DC
armature voltage and maximum braking current. Wait for
the motor to stop completely before switching it to either
the forward or reverse direction. See the Dynamic Braking
section on page 43 for sizing the dynamic brake resistor.

250-0287-rev2.qxd

3/12/01

10:27 AM

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