
B–63173EN–1/01
2. PREPARATIONS FOR OPERATION
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When the CNC is turned on and becomes ready for operation, the CNC
ready signal is set to 1.
[Classification] Output signal
[Function] The CNC ready signal reports that the CNC is ready.
[Output condition] When the CNC is turned on and becomes ready for operation, the signal
is set to 1. Normally, it takes several seconds to establish this state after
the power is turned on. If a system alarm is issued, the signal is set to 0.
The signal remains set to 1, however, when an emergency stop or a similar
operation is performed.
[Classification] Output signal
[Function] Signal SA turns to “1” when the servo system is ready to operate. For an
axis that is to be braked, release the brake when this signal is sent and
apply the brake when this signal is not sent.
Time chart of this signal is as follows:
Power on
Ready signal (MA)
Power off
60A100 msec
Servo alarm Servo alarm
Overload
1 to 2 seconds
About 1 second
Reset
Reset
Emergency stop
Servo ready
signal (SA)
Brake on
Fig. 2.2 Time chart for servo ready signal
2.2
CNC READY SIGNAL
General
Signal
CNC Ready Signal
MA<F001#7>
Servo Ready Signal
SA <F000#6>