
FANUC AC SPINDLE MOTOR a series
3. EXPLANATION OF
PARAMETERS
B–65160E/02
172
SPDBIS: Specifies whether a BZ sensor (built–in sensor) on the spindle is used.
0: Not used.
1: Used.
Set this bit to 1 when a position coder signal is obtained by mounting a
BZ sensor (built–in sensor) onto the spindle.
Set this bit to 0 when a built–in motor’s BZ sensor (built–in sensor) is
used.
EXTRF: Specifies whether a reference switch signal is used.
0: Not used.
1: Used.
RFTYPE: Specifies whether to invert the external one–turn signal.
0: The final signal is to be inverted.
1: The final signal is not to be inverted.
BISGAN:
Specifies the built–in sensor in motor models a0.5, 0.3S, 0.5S, and
IP65 (1S to 3S) (9D00.D).
0: Other than the case below (for a0.5 (B380))
1: Motor model a0.5 (B390) with a MZ sensor
16i/16 #7 #6 #5 #4 #3 #2 #1 #0015i15
BLTRGD ALGOVR SYCREF SPDUNT GRUINT
6506 3006 3006 4006
6646 3146
Standard setting: 0 0 0 0 0 0 0 0
GRUNIT:
Gear ratio setting resolution setting
0: 1/100 units (Under normal circumstances, set to ”0”.)
1: 1/1000 units
This parameter is used for gear ratio data setting to select whether to set
the number of motor revolutions for 1 revolution of the spindle as a
multiple of 100 or as a multiple of 1,000.
When the gear ratio is a fraction at 1/100, there may be a constant
synchronization error indicated in spindle synchronization control.
In this sort of situation, using setting units of 1/1000 makes the
synchronization error appear much smaller.
These parameters change the following parameter settings.
Parameter No.
0 15
Description
1st 2nd 1st 2nd
15
16
/16
6556 6696 3056 3196 3056 4056 Gear ratio (HIGH)
6557 6697 3057 3197 3057 4057 Gear ratio (MEDIUM HIGH)
6558 6698 3058 3198 3058 4058 Gear ratio (MEDIUM LOW)
6559 6699 3059 3199 3059 4059 Gear ratio (LOW)