
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 2.EXPLANATION OF OPERATION MODES
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15i 16i 30i
3027 4027 4027
Load detection level 2
Unit of data : 1%
Valid data range : 0 to 100
Standard setting value : 95
This parameter sets a load detection signal 2 (LDT2A) detection range.
When the output of the spindle motor is (setting data)% of the
maximum output or more, load detection signal 2 (LDT2A) is set to 1.
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.
Example :
When the spindle rotates once, set "250" as the data when the
motor rotates 2.5 times.
A parameter is selected with the CTH1A and CTH2A input signals.
Set the gear or clutch status to correspond to the clutch/gear signal
(CTH1A, CTH2A) in input signals.
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
3095 4095 4095
Speedometer output voltage adjustment value
Unit of data : 0.1%
Valid data range : -1000 to +100 (-100% to +10%)
Standard setting value : 0
Set this parameter when making a fine adjustment of speedometer
output voltage.
Positive (+) data increases the output voltage.
NOTE
Usually, this parameter need not be adjusted.