8. AUXILIARY AND APPLIED FUNCTIONS
8
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20
8.11
Enhanced Current Value Control
The following functions have been added to provide enhanced current value control
when the ABS encode is used.
(1) Enhanced functions
(a) Function for checking the validity of an encoder during operation
•
Checks whether encoder's variance in a 3.5ms time interval is within 180
degrees at the motor axis. (An error is indicated when the variance is not
within 180 degrees.)
•
Checks whether encoder data matches feed-back positions managed by
the servo amplifier. (An error is indicated when the data does not match
the feed-back positions.)
(b) Current value log monitor for checking the following values with peripheral
devices
•
Encoder current value, servo commanded value, and monitor current
value at power-on sequence
•
Encoder current value, servo commanded value, and monitor current
value at power-off sequence
•
Encoder current value, servo commanded value, and monitor current
value at home position return
(c) If an allowable travel value is set at power-off sequence, whether encoder
data has changed exceeding the setting range at power-off sequence can
be checked at servo amplifier power-on sequence. (An error is indicated
when the encoder data has exceeded the setting range.)
(2) Restrictions on the servo amplifier
The following restrictions are imposed according to the servo amplifier
combinations:
Servo amplifier
Restrictions
MR-H-BN
: BCD-B13W000-B2 and after
MR-J2-B
: BCDB20W200-A1 and after
MR-J2S-B : All types
No restrictions
MR-H-BN
: BCD-B13W000-B1 and after
MR-J2-B
: BCD-B20W200-A0 and before
MR-J-B
: All types
All enhanced functions cannot be used.
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