
B-63494EN/02 3.SAFETY FUNCTIONS
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Safe-related I/O
1. *ESP Emergency stop signal (input)
Emergency stop signal. The signal is monitored in redundant mode.
The signal is connected to the *ESP input of the servo amplifier as
well.
2. SGDn Guard state signal (input)
The signal is provided for double monitoring of the protective door
state. The signal is connected so that it is normally set to 1 while the
protective door is closed and locked (door open) and set to 0 otherwise
(door close). These states are implemented by the combination of the
safety door and safety relays. The CNC monitors these states. If the
safety speed range is exceeded in the door open state, the system
enters the safe stop state.
3. GDL Guard lock state signal (input)
This signal is not usually used.
4. *SMC MCC contact state signal (input)
The MCC contact state is monitored in redundant mode. In normal
operation, the MCC is active, and whether the contact of a relay is
closed cannot be detected. In the test mode, a closed contact of a relay
can be detected.
5. Programmable safe-related input signals
These signals are used only for monitoring of input signals by the
CNC and monitor. The machine tool builder can freely use these
signals.
6. Safety speed / Safety position selection signal (input)
With these signals, a safety speed and safety machine position can be
selected for each axis.
7. MCF MCC on enable signal (output)
With this signal, the MCC is shut off from both the I/O Link side and
the FSSB side.
8. Programmable safe-related output signals
These signals are used only for monitoring of output signals by the
CNC and monitor. The machine tool builder can freely use these
signals.
9. Safety Position Switch signal (output)
This signal posts that the machine position on a controlled axis
specified by the safety parameters (No. 13880 to No. 13911) is within
the area specified by the safety parameters (No. 13920 to No. 13951,
No. 13960 to No. 13991).