
5.I/O SIGNALS B-64004EN/02
- 68 -
[Operation] According to the combination of Safety Speed/Safety Machine
Position Selection signal, safety speed and safety machine position are
selected as the following table.
Safety Speed/
Safety Machine Position
Selection signal
Safety limit speed Safety machine position
SVAn SVBn
SPAn SPBn
Parameter for
servo axis
Parameter
for spindle
+ direction
parameter
- direction
parameter
Safety limit speed 1 Safety machine position 1
0 0
No.13821 No.4372 No.13831 No.13832
Safety limit speed 2 Safety machine position 2
1 0
No.13822 No.4438 No.13833 No.13834
Safety limit speed 3 Safety machine position 3
0 1
No.13823 No.4440 No.13835 No.13836
Safety limit speed 4 Safety machine position 4
1 1
No.13824 No.4442 No.13837 No.13838
CAUTION
Safety Speed/Safety Machine Position Selection
signal is a safety signal. This signal is input through
both PMC and DCS PMC. Both CNC and PMC
check doubly inconsistency of this signal.
Position Information Effect signal
POSEx <PMC: Fn766#0 to #7><DCS PMC: F(018+m)#0 to #7> (for each axis)
This signal is output when Dual Check Safety function is activated
and the reference point is established. When the reference point is not
established, the machine system is in danger state because Safety
Machine Position Monitoring and Safety Position Error Monitoring
are not active. If this signal is “0”, Machine Tool Builder has to
control not to open the protective door.
[Classification] Output signal (This signal output to both PMC but is not monitored
doubly)
[Function] This signal informs whether the reference point is established or not.
0: The reference point is not established.
1: The reference point is established.
[Operation] Each CPU informs whether the reference point is established or not.
In the following case, this signal is turned to “1”.
• After the reference point is established.
• When the follow up operation of absolute pulse coder is finished
after power-on
In the following case, this signal is turned to “0”.
• When the reference point is lost
NOTE
In case that the reference point is re-established,
this signal is turned to “0” till the reference point is
re-established from the dog-signal is turned off.