
2.EXPLANATION OF OPERATION MODES FANUC BUILT-IN SPINDLE MOTOR Bis series B-65280EN/05
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15i 16i 30i
3048 4048 4048
Velocity loop integral gain on velocity control mode (HIGH) CTH1A=0
3049 4049 4049
Velocity loop integral gain on velocity control mode (LOW) CTH1A=1
Unit of data :
Valid data range : 0 to 32767
Standard setting : 10
This data is used to set the velocity loop integral gain on velocity
control mode.
When the input signal CTH1A = 0, (HIGH) is selected. When the
input signal CTH1A = 1, (LOW) is selected.
15i 16i 30i
3056 4056 4056
Gear ratio (HIGH) CTH1A=0, CTH2A=0
3057 4057 4057
Gear ratio (MEDIUM HIGH) CTH1A=0, CTH2A=1
3058 4058 4058
Gear ratio (MEDIUM LOW) CTH1A=1, CTH2A=0
3059 4059 4059
Gear ratio (LOW) CTH1A=1, CTH2A=1
Unit of data : (Motor rotation for one rotation of spindle) / 100
(When parameter No. 4006 #1 (GRUNIT) is 1, motor rotation / 1000)
Valid data range : 0 to 32767
Standard setting : 100
These data are used to set the gear ratio between spindle and spindle
motor.
Usually, set 100.
NOTE
When an improper value is set in these parameters,
an unexpected operation can occur. For example,
the spindle can continue rotating without stopping at
the time of orientation. So, be sure to set a proper
gear ratio.
15i 16i 30i
3081 4081 4081
Delay time until the motor power is turned off
Unit of data : 10ms
Valid data range : 0 to 1000
Standard setting value : 20(200ms)
This parameter sets a period of time from the stop of the motor
(detection of the speed zero detection signal SSTA set to 1) until the
power to the motor is turned off if the SFR/SRV signal is off.
NOTE
When a small value is set in this parameter, the
motor can coast after the power to the motor is
turned off.