Siemens PUMA VT1100/M - Dual Chucking (Option)

54 | Part 2
7.5 Dual chucking (option)
According to the requirement, when chuck is clamped, the pressure can be changed in 2
levels.
(1) Command method
By commanding M-code, the pressure when chuck is clamped or unclamped can be
changed. However, dual chucking operation in different system cannot be executed.
Chucking pressure can
be changed in 2 level,
and changed by M-
code listed below.
M66 ;
Main Chuck
Low pressure
M67 ;
Main chuck
High pressure
Commanded M-code will be finished after time set in machine data listed below elapsed,
and then automatic command can be executed.
MD14510[12] (Setting unit : 100msec)
MD14510[12] is set to 30 (3 sec) if special adjustment isn't required at shipping.
In case of change pressure from high to low, the pressure is not changed instantly after
commanding M-code. Surely unclamp chuck once and clamp chuck, then the pressure
will be changed into low.
Chucking pressure is
changed into High
Change pressure from
Low to High
(Command M67)
Start to change the chuck
pressure to High
NO
Finish M67
Finish M66
Change pressure from
High to Low
(Command M66)
Start to change the chuck
pressure to Low
NO
YES
Unclamp chuck
Clamp chuck
Chucing pressure is
changed into Low
Is the time elapsed
set in MD 14510[12]
after commanding?
Is the time elapsed
set in MD 14510[12]
after commanding?
YES
YES