Specifications

12.2

Application

-29

6. Press the [DATA/ENTER] key to return to the auxiliary function execution mode dis-

play.

This completes the motor current detection signal offset automatic adjustment.

 Motor current detection signal offset manual adjustment

Use the following procedure for the offset manual adjustment of motor current detection sig-

nal.

Before initiating the manual adjustment, run the motor at about 100 min

-1

and adjust the ripple for the

torque reference monitor (See the Section 16.4 "Analog monitor") becomes minimum. You must bal-

ance the U-phase and V-phase current offset when adjusting. For this purpose, you have to adjust alter-

nately these phase current offsets several times.

1. On the axis selection mode, select the axis you want to operate.

2. Press the [DSPL/SET] key to select the auxiliary function execution mode.

3. Select the user constant Fn00F. Press the [LEFT] or [RIGHT] key to select the setting

digit. Press the [UP] or [DOWN] key until the value you want to set is displayed.

4. Press the [DATA/ENTER] key. The indication will be displayed as below.

5. Press the [DSPL/SET] key to switch over the U-phase (Cu1_0) to and from V-phase

(Cu2_0) current detection signal offset adjustment mode.

6. Press the [LEFT] or [RIGHT] key to view the current detection data. Press the [LEFT]

or [RIGHT] key again to return to the display of Step 4 or Step 5.

IMPORTANT

[DSPL/SET] key

Changes alternately.

[LEFT] key

([RIGHT] key)

Data display