Rockwell-automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 Manual de usuario descargar pdf (Pagina 54)

46 Operation

ATTENTION: For frequent starts and stops, short the

inhibit terminals, decelerate to a minimum speed, or

apply a dynamic brake to the motor. Do not use any of

these methods for emergency stopping. They may not

stop a drive that is malfunctioning. Removing AC line

power (both L1 and L2) is the only acceptable method

for emergency stopping.

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Auto mode

IMPORTANT: If you run the drive in AUTO mode using

an external current signal, you must recalibrate the MIN

SPD trimpot to offset any motor drift caused by the input

signal.

IMPORTANT: When switching between MANUAL and

AUTO (0-10 VDC) modes, you must balance the MIN

SPD trimpot setting for both operating modes.

Set the mode selector switch to AUTO if you wish to

follow an external signal, independent of the speed adjust

knob setting. In AUTO mode, the drive will control motor

speed in proportion to eithera0–10VDCanalog voltage

ora4–20mADC current signal. You must set select

switch SW504, SIGNAL SOURCE SELECT, to either

VOLTAGE or CURRENT, depending on your signal input.

Enclosed drive operation

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Rockwell-automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 Manual de usuario Pagina 54