FANUC Series 16i /18i /21i Additional Manual Page 3
Additional Manual
A-79208E
Edit
Apprv.Desig.
Sheet
Title
Draw
No.
Date
Design
Descri
p
tion
Date
FS16i/18i
/
21i - MB/TB, FS18i-MB5
Improvement of Dual Check Safety function
(Spindle speed alarm detection at safety signal mode A/B)
Specifications
04/01/13
3/4
Sheet
4372 Safe speed 1 for each spindle axis
4438 Safe speed 2 for each spindle axis
4440 Safe speed 3 for each spindle axis
4442 Safe speed 4 for each spindle axis
[Data type] Word axis (spindle)
[Unit of data] min
-1
[Valid data range] 0 ~ 32767
Set a safe speed for each spindle axis in terms of motor speed.
CNC CPU and spindle DSP always monitor the speed for each spindle axis in dual check
safety function.
4 safe speeds are set in these parameters. Safe speed is selected according to the status of
the safe speed selection signals (safe input signals).
・When parameter DSn = 0
In safety signal mode B (state in which a guard open request is input, and the guard is
closed), if there is at least one spindle axis for which a speed greater than the safe speed is
specified, the guard unlock signal (*LGD) is set to 0 to disable guard unlocking. The state in
which the speeds specified for all spindle axes are within the safe speeds is one condition
for setting the guard unlock signal (*LGD) to 1 (to enable guard unlocking).
In safety signal mode C (state in which a guard open request is input, and the guard is open),
spindle alarm No.757 (No.767, 777, 787) and AL-69 are generated for the spindle axis for
which a speed greater than the safe speed.
・When parameter DSn = 1
In safety signal mode A (state in which a guard open request is not input), B or C, spindle
alarm No.757 (No.767, 777, 787) and AL-69 are generated for the spindle axis for which a
speed greater than the safe speed.
NOTE1) Safe speed parameters No.4372, No.4438, No.4440 and No.4442 are protected by
key and password of dual check safety function. If these parameters should be
changed, please set the password for safe parameters to the key for safe
parameters (parameter No.3226).
NOTE2) When this parameter is set, power must be turned off before operation is continued.
Contents Summary of FANUC Series 16i /18i /21i Additional Manual
- Page 1FANUC Series 16i /18i /21i –MB/TB FANUC Series 18 i –MB5 Improvement of Dual Check Safety function (Spindle speed alarm detection at safety signal mode A/B) Specifications FS16i/18i/21i - MB/TB, FS18i-MB5 Improvement of Dual Check Safety function Title (Spindle speed alarm detection at safety signal
- Page 21. Specification By this function, it is possible to check spindle speed and detect the safety alarms of the spindle axis when the spindle speed is greater than the safe speed even if the guard is closed (safety signal mode is A or B). The spindle using this function can be selected according to the
- Page 34372 Safe speed 1 for each spindle axis 4438 Safe speed 2 for each spindle axis 4440 Safe speed 3 for each spindle axis 4442 Safe speed 4 for each spindle axis [Data type] Word axis (spindle) -1 [Unit of data] min [Valid data range] 0 ~ 32767 Set a safe speed for each spindle axis in terms of motor
- Page 43. Signals Safe speed selection signal A SPA1~SPA4