Yaskawa V7 Drives User Manual

Page 40

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2-4

DIGITAL OPERATOR

DESCRIPTION

KEY SEQUENCE

DISPLAY

Table 2-1. Open Loop Vector Startup Procedure - Continued

Test run the drive from the
Digital Operator.

WARNING: The next key press will cause
the motor to turn! Take appropriate safety
precautions!

Press the

key then slowly turn the

Digital Operator Pot to the right about 1/4 of a
turn. The display on the drive will show the
actual motor amps.

Operation checkpoints:

Motor rotates smoothly

Motor rotates in correct direction. (If motor
does not rotate in the proper direction,
stop the motor and remove power from the
Drive. Switch motor connections T1 (U)
and T2 (V) at the Drive.)

Motor has no abnormal vibration or noise.

Acceleration and deceleration are smooth.

Unit is not overloaded. (Displayed current
does not exceed drive rated current).

RUN

Determine the motor “no
load current.”

With the drive still running, turn the Digital
Operator Pot all the way to the right (full
speed) and record the current on the display.

Actual Value: ________________________

Press the

button to stop the drive.

STOP
RESET

IOUT

(1)

IOUT

(1)

IOUT

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