
B-64663EN/01 LASER FUNCTION 8.CONTROL FUNCTION
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First activation after installation of mixer
Immediately after installation, the mixer state is not known. Therefore,
the mixer must be initialized. To discharge the internal gas, evacuation,
gas supply, mixing, and so on must be performed.
To perform this operation, set all the bits of parameter No. 15009 to 0.
Replacing a gas cylinder
After replacing a gas cylinder, hold the BCAN signal (G221#5) to 1
for about 500 milliseconds. This operation is necessary to inform the
NC that the cylinder has been replaced. After this operation, the mixer
automatically starts the following operation:
(1) Discharges air from the external gas piping between the cylinder
and the mixer.
This step is performed to prevent the gas from being mixed with
air.
(2) Resumes the operation from the wait state for requesting cylinder
replacement (due to low cylinder level).
When a low cylinder pressure is detected while the mixer is
being supplied with gases, 111 is displayed on the diagnostic
screen No.987. Only the mixer stops its operation temporarily. A
resume operation is necessary.
Leak check
To check the mixer for leaks, hold the LCAN signal (G221#4) to 1 for
about 500 milliseconds in the state before RUN-ON. The operation up
to evacuation sealing is performed automatically. The leak check
terminates by RUN-ON. An operator must check whether there is a
leak.
First activation after restoration of the NC
The entire mixer sequence is managed according to the flags specified
in parameter No. 15009. If the stored data is lost due to replacement of
the memory module or a memory clear operation, parameter No.
15009 must be reset, as is done after installation of the mixer,
described above.
Signal
- Leak check start signal
LCAN<G221#4>
[Classification] Input signal
[Function] Checks the mixer for leaks.
- Cylinder replacement signal
BCAN<G221#5>
[Classification] Input signal
[Function] Informs the NC that a cylinder has been replaced.
Signal address
#7 #6 #5 #4 #3 #2 #1 #0
G221 BCAN LCAN