调高器说明书
4. Turn on the height controller (M38)
M70
Fixed ascending
cycle of cutting torch:
It
is used to lift the cutting torch when a cycle st
arts and after one
cutting cycle is complet
ed,
the so that the
cutt
ing t
orch can move to next cutting position quickly.
Operation
sequence:
turn
on
the
ascending
swit
ch
of
the
cutting
torch
(M14);
start
the
ascending delay of cutting torch; turn off the ascending switch of cutting torch (
M15).
M71
Fixed descending cycle of cutting torch:
It
is used before a
perforation operat
ion. Its role is contrary to M70, but the value is smaller
because descending
is faster than
ascending due to the action of gravity
descend.
Operation
sequence:
turn
on
the
descending
switch
of
cutting
torch
(M16);
start
the
descending
delay of cutting torch; turn off the descending switch of cutting torch (M17).
M72
Ascending cycle of cutting torch for perfo
ration:
It
is used at the end of preheating to lift
the cutting torch a lit
tle bit so as t
o
avoid
any
sprayed
steel slag from blocking the nuzzle of the cutting torch when the cutting oxygen
valve is opened.
Operation
sequence: t
urn on the ascending switch of cutting torch
(M14); start the
ascending delay of cutting torch for perfo
ration; t
urn off the ascending switch of cutting
torch(M15).
M73
Descending cycle of cutt
ing torch for perforation:
It
is
used
at
the
end
of
preheating.
After
M72
is
executed
and
the
cutting
oxygen
valve
is
opened,
the
cutting
torch
is located in cutt
ing position. It is
the
reverse
action
of
M72,
but
the value is smaller because
descending
is faster than ascending due to the action of gravit
y.
Operation
sequence:
turn
on
the
switch
of
cutting
torch
(M16);
st
art
the
descending
delay
of cutting torch for perforation; turn off the descending switch of cutting torch (M17).
M75 Positioning time delay of cutting torch:
To position the cutting
torch in
plasma
mode,
first
let the cutting
torch
descend (M16)
until
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