
B-64663EN/01 LASER FUNCTION 3.LASER SEQUENCE CONTROL
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- Chiller start request signal
CLON<F221#4>
[Classification] Output signal
[Function] This signal notifies the PMC that cooling water must be supplied to
the oscillator.
[Output] Before the oscillator can be operated, cooling water must be supplied
from the external chiller unit. When a supply of cooling water is
needed, the CNC sets the chiller start request signal (CLON) to 1.
When the cooling water becomes unnecessary, the CNC sets the signal
to 0. Therefore, the supply of cooling water to the oscillator should be
started or stopped according to this signal.
The signal becomes 1 under the following condition:
- When the oscillator start signal (RUN) is set to 1 while the purge
completion signal (PURGE) is set to 1
The signal becomes 0 under the following condition:
- When the oscillator start signal (RUN) is set to 0 while the
discharge start ready signal (LRDY) is set to 1, oscillator stop
processing is performed, then purge processing is completed
- Chiller ready signal
CLRDY <G221#6>
[Classification] Input signal
[Function] This signal is used to monitor the supply of cooling water to the
oscillator.
[Operation] When the CNC sets the chiller start request signal (CLON) to 1 to
request the supply of cooling water, the machine should supply
cooling water to the oscillator, provided the chiller unit is normal. At
the same time, the machine should set the chiller ready signal
(CLRDY) to 1 and input it to the CNC. When the machine stops
supplying cooling water to the oscillator, the machine should set the
chiller ready signal (CLRDY) to 0.
If the chiller ready signal (CLRDY) is set to 0 while the CNC is
outputting 1 for the chiller start request signal (CLON), the CNC
issues an alarm, assuming that an abnormality has occurred in the
external chiller unit.
- Discharge start ready signal
LRDY<F221#1>
[Classification] Output signal
[Function] This signal notifies the PMC that the CNC is ready for discharge for
the oscillator.
[Output condition] When the discharge start ready signal (LRDY) is set to 1, the CNC
can accept the discharge start signal (HVON).
The discharge start ready signal becomes 1 under the following
conditions:
- When the oscillator start signal (RUN) is set to 1, and the CNC is
ready for discharge
- When the discharge start signal (HVON) is set to 0 during oscillation
- When the oscillator start signal (RUN) is set to 0 during oscillation
- When emergency stop is performed during oscillation