9 current detection offset manual adjustment mode – Yaskawa SGDB User Manual

Page 228

4 . 2 Using the Functions

217

4.2.9 Current Detection Offset Manual Adjustment Mode

Current detection offset manual adjustment is performed at Yaskawa before shipping.
Basically, the customer need not perform this adjustment. Perform this adjustment only if
highly accurate adjustment is required when the Digital Operator is combined with a spe-
cific motor.

Run the motor at a speed of approximately 100 min

−1

, and adjust the Digital Operator

until the torque monitor ripple is minimized. Adjust the U−phase and V−phase offsets
alternately several times until these offsets are well balanced.

Follow the procedure below to perform current detection offset manual adjustment.

For JUSP-OP02A-1

1. Press

DSPL

SET

to select the parameter setting

mode.

2. Select the parameter number Cn-00.

(Parameter Cn-00 is selected when the power
is turned ON.)

Press the

and

keys to select the

digit.

Press

and

keys to change the

value.

3. Press

DATA

ENTER

to display the current data for the

parameter Cn-00.

4. Press the

and

keys to change the data

to 08.

5. Press

DSPL

SET

to select the current detection off-

set manual adjustment mode.
The amount of current detection offset is dis-
played.

6. Press the

and

keys to switch between

U-phase and V-phase current adjustment
modes.

JUSP-OP02A-1

Setting Mode

Select Cn-00.

The

selected

digit flashes.

Parameter Number

Data

Set to 00-08.

keys to change the

value.

Press the

Current Detection

Offset Manual

Adjustment Mode

Phase-u

Current

Adjustment

Mode

Phase-v

Current

Adjustment

Mode