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.
4
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