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4.2 MECHATROLINK-
II
Commands
4-7
4
Op
er
at
io
n
 Automatic Offset Adjustment of Motor Current Detection Signals
Use the following procedure to adjust the offset of the motor current detection signals for a multi-winding drive system.
After you complete the adjustment, always disable automatic adjustment (Pn009 = n.  0).
Note: Perform this adjustment only the first time that the main circuit power supply is turned ON after the control power
supply is turned ON.
 Related Parameters
4.2.2
Subcommands
The following table lists the subcommands for MECHATROLINK-II communications.
Step Operation
1 Enable automatic adjustment of the motor current detection signal offset (Pn009 = n.  1).
2 Turn the control power supply OFF and ON again.
3
Turn the SERVOPACK/converter main circuit power supplies OFF and ON again.
The motor current detection signal offset will be automatically adjusted when the main circuit power supplies
to the SERVOPACKs are detected.
Up to 2 seconds will be required for the automatic adjustment.
4 Disable automatic adjustment of the motor current detection signal offset (Pn009 = n.  0).
Parameter Meaning When Enabled
Pn009
n.  0
[Factory
setting]
Does not execute automatic adjustment.
After restart
n.  1
Performs automatic offset signal adjustment of the motor current
detection signal when the main circuit power supply is turned ON.
Command
Code
Command Function
00 hex NOP Same function as NOP main command.
01 hex PRM_RD Same function as PRM_RD main command.
02 hex PRM_WR Same function as PRM_WR main command.
05 hex ALM_RD Same function as ALM_RD main command.
1C hex PPRM_WR Same function as PPRM_WR main command.
28 hex LTMOD_ON Same function as LTMOD_ON main command.
29 hex LTMOD_OFF Same function as LTMOD_OFF main command.
30 hex SMON Same function as SMON main command.