
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 5.FUNCTION DESCRIPTIONS
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15
i 16i 30i
3347 4347 4347
Master-slave speed difference state signal output setting
Unit of data : 1min
-1
*(10min
-1
when bit 2 (SPDUNT) of parameter No. 4006 is set to 1)
Valid data range : 0 to 32767
Standard setting value : 0
This parameter sets a level for detecting the master-slave speed
difference state signal (MSOVRA:F47#2, MSOVRB:F51#2).
If this parameter is set to 0, the setting of 100 is assumed.
15
i 16i 30i
3360 4360 4360
Preload value
Unit of data : ±16384 equivalent to a torque command of 100%
Valid data range : -8192 to 8192
(-50% to +50%)
Standard setting value : 0
This parameter sets a preload value.
This parameter may suppress stop-time vibration caused by backlash.
NOTE
This parameter need not be set for the slave SPM
side. (The setting for the master SPM is transferred
to the slave SPM by inter-SPM communication.)
5.11.7 Alarm and Status Error
(1) SPM alarm
Alarm No. Description Measure
66 An inter-SPM communication error occurred. Check the connection of the cable (JX4).
80
An alarm was issued on the destination SPM
of inter-SPM communication.
Correct the cause of the alarm on the
destination SPM.
d0
The relationship between the speed polarity of
the master motor and the speed polarity of the
slave motor is abnormal.
Check the rotation direction relationship setting
(FS16i: Bit 2 of No. 4353).
(2) SPM status error
Error No. Description Measure
21
A tandem operation command was input when
spindle synchronous control is enabled.
Input a tandem operation command after
canceling spindle synchronous control.
22
Spindle synchronous control was specified
when tandem operation is enabled.
Specify spindle synchronous control after
canceling torque tandem operation.
23
A tandem operation command is input even if
the option is not specified.
Torque tandem control requires the CNC
software option. Check the option.
38
- Parameters related to inter-SPM
communication are not set correctly.
- Functions that cannot be used together with
the torque tandem function are set.
Check the parameters.