
4.SERVO FUNCTION DETAILS B-65270EN/05
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4.13 FUNCTION FOR OBTAINING CURRENT OFFSETS AT
EMERGENCY STOP
(1) Overview
A current offset is an offset value arising from an analog offset
voltage associated with an current detector. If such an offset value is
not obtained correctly, the feedback current of the motor is adversely
affected, resulting in slight irregularities in the rotation of the motor
(four components per motor revolution).
At present, a current offset is obtained once when the power to the NC
is turned on as standard. The offset value varies, depending on the
temperature of the current detector. Use this function to cope with
such variations in time.
(2) Series and editions of applicable servo software
(Series 30i,31i,32i)
Series 90D0/A(01) and subsequent editions
Series 90E0/A(01) and subsequent editions
(Series 15i-B,16i-B,18i-B,21i-B,0i-B,0i Mate-B,Power Mate i)
Series 9096/A(01) and subsequent editions
Series 90B0/A(01) and subsequent editions
Series 90B1/A(01) and subsequent editions
Series 90B6/A(01) and subsequent editions
(Series 0i-C,0i Mate-C,20i-B)
Series 90B5/A(01) and subsequent editions
(3) Setting parameters
#7 #6 #5 #4 #3 #2 #1 #0
1741 (FS15i)
CROFS
2201 (FS30i, 16i)
CROFS (#0) 1: Enables the current offset to be obtained upon the occurrence of an
emergency stop.
If the above setting is made, the current offset is obtained again during
an emergency stop.