Service Support Spirit
53
Unique Solution
WWW.ARCBRO.COM
lowering torch(refer to 7.3 for flame parameter) and turn off the torch lowering
switch(M17).
M72: Loop of lifting the piercing torch
At the end of preheating, this command is used to lift the cutting torch somewhat to
prevent the torch nozzle from blocked by splashing slag. The operation sequence is as
follows: turn on the torch lifting switch(M14); count the time delay of lifting the
piercing torch(refer to 7.3 for flame parameter); turn off the torch lifting switch(M15).
M73: Loop of lowering the piercing torch
At the end of preheating after M72 is executed and the cutting oxygen valve is opened,
this command is used to move the torch to the cutting position, opposite to M72 in
function and little bit smaller in value. Because of gravity, the lowering action is faster
than lifting action. Operation sequence: turn on the torch lowering switch(M16), count
the time delay of lowering the piercing torch(refer to 7.3 for flame parameter) and turn
off the torch lowering switch(M17).
M75: Time delay of torch positioning
When positioning the plasma gun, lower the torch(M16). It will not stop until the torch
hits the lower limit switch (refer to input port 8 XXW)(M17). Turn on the torch lifting
switch (M14). After count the time delay of torch positioning (refer to 7.4 for plasma
parameter), the lifting torch will stop(M15).
M80: Master switch
All the output ports will be turned off if the command of M80 is executed.
