Rockwell Automation DC3N DC Drive User Guide, 1/4-2HP-115/230 VAC User Manual
Page 42
34
Application Notes
Reversing
Figure 22. Reversing Circuit Connection
ATTENTION:
At very low input levels, noise or drift could cause analog
input polarity to change. This could cause the motor to rotate in the opposite
direction. Proper precautions should be taken as this could result in damage to,
or destruction of, the equipment.
ƽ
A dynamic brake may be used when reversing the motor direction (Figure 22). 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 for recommended dynamic brake resistor sizes.
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