
B-63943EN-1/02 11.SPINDLE SPEED FUNCTION
- 1533 -
Signal
Spindle fluctuation detection alarm signal SPAL <Fn035#0>
[Classification] Output signal
[Function] This signal indicates that the actual spindle speed is not within a
tolerance to the specified speed.
[Output condition] The signal becomes logical "1" when:
- The actual spindle speed goes out of tolerance to the specified
speed.
The signal becomes logical "0" when:
- No alarm (OH0704) condition has been detected for spindle
speed fluctuation.
- An alarm condition is cleared by resetting the NC when the
signal is logical "1".
Signal address
#7 #6 #5 #4 #3 #2 #1 #0
Fn035 SPAL
Parameter
#7 #6 #5 #4 #3 #2 #1 #0
4900 FLRs
[Input type] Parameter input
[Data type] Bit spindle
# 0 FLRs When the spindle speed fluctuation detection function is used, the unit
of an allowable ratio (q) and fluctuation ratio (r) set by parameter No.
4911 and No. 4912 is:
0: 1%
1: 0.1%
4911
Allowable speed ratio (q) used to assume that the spindle has reached a
specified speed
[Input type] Parameter input
[Data type] Word spindle
[Unit of data] 1%, 0.1%
[Valid data range] 1 to 100, 1 to 1000
When the spindle speed fluctuation detection function is used, set an
allowable speed ratio (q) used to assume that the spindle has reached a
specified speed.
NOTE
The unit of data is determined by bit 0 (FLR) of
parameter No. 4900.