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Pulse Train Input Interface <br />
4.2.2 CN1 Output Signal Function<br />
NoteWhen the power is turned on, the status of each output Port is uncertain until the CPU is in<br />
motion. Observe output Ports for more than 5 seconds after the power supply voltage has<br />
settled.<br />
Name Logic selection Function outline<br />
ALM Selectable<br />
CMD16h<br />
Initial value<br />
OnALM<br />
Issued when alarm is activated<br />
Detects low voltage error when power failure occurs with the<br />
servo ON. Switch off the power with the servo OFF if the alarm<br />
becomes a problem.<br />
HEND Fixed<br />
Zero-return completion output signal. It is OFF after the power is<br />
On switched on and turns ON when zero-return has successfully<br />
Completed completed.<br />
It switches OFF when the next zero-return commences and<br />
switches on again when zero-return has successfully completed.<br />
SON MON Fixed<br />
OnSON<br />
OFFSOFF<br />
Monitors the condition of the servo. Will not receive move command<br />
when in the servo OFF state.<br />
It switches to servo ON state automatically after the power<br />
supply voltage of the PB system has settled and initialization has<br />
successfully completed. If STOP status is Active, initialization<br />
will not be executed.<br />
STOP MON Fixed Monitors input status of the STOP signal.<br />
Power supply sequence<br />
<br />
Power voltage<br />
<br />
<br />
Initialization<br />
<br />
STOP<br />
<br />
<br />
<br />
SON monitor<br />
5s max<br />
SON<br />
5ms max<br />
<br />
<br />
<br />
47
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