
B–65160E/02
3. EXPLANATION OF
PARAMETERS
FANUC AC SPINDLE MOTOR aC series
293
16i/16
15
15i
0
The alarm level of the difference between the estimated speed and the
motor speed calculated from the position coder signal (9D12 series only)
6587 3087 3087 4087
6727 3227
Data unit : min
–1
Data range : 0 to 32767
Standard setting : 0 (But, in the control software, initial alarm level is
100 (min
–1
))
This parameter is used to detect AL–35. This alarm happens when the
difference between the estimated speed and the motor speed calculated
from the position coder signal exceeds this parameter setting value and
this condition continues more than 1sec. When AL–35 is occurred, please
check the gear ratio parameter, or the position coder mounting direction
parameter, or gear/clutch signal (CTH1,CTH2).
16i/16
15
15i
0
Velocity error excess detecting level on motor shaft lock condition
6588 3088 3088 4088
6728 3228
Data unit : 0.01%
Data range : 0 to 10000
Standard setting : 75
This data is used to set the velocity error (=commaned speed – estimated
speed) excess detection level on motor shaft lock condition. When the
motor is locked and the velocity error exceeds the value of (maximum
speed) (setting data) /10000, (AL–31) occurs.
16i/16
15
15i
0
Velocity error excess detecting level on motor rotation
6589 3089 3089 4089
6729 3229
Data unit : 0.1%
Data range : 0 to 1000
Standard setting : 200
This data is used to set the velocity error (=commaned speed – estimated
speed) excess detection level on motor rotation. When the velocity error
exceeds the value of (maximum speed) (setting data) /1000, (AL–02)
occurs.
16i/16
15
15i
0
Overload detecting level
6590 3090 3090 4090
6730 3230
Data unit : 1%
Data range : 0 to 100
Standard setting : 90
When the motor load remains to be equal to or more than the value of
“maximum power” (setting data) for a long time (this time is set
PRM4123:Series16), the short–time overload alarm (AL–29) occurs.