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8.7. Program Operation
8.7.1. Change of Parameter via Program Operation
Change of parameter in a program (local parameter) can be stored after completion of a program
operation. (The Driver Unit will keep it until the control power is off.)
◊ The parameter PK (Parameter keep) holds local parameter settings.
◊ The command RE (Return) cancels the held local parameters and resets to the global
parameter setting again.
Thus the operating conditions can be changed by the next input of the RUN input (Program
start).
Table 8-35: Input/ouput and command related to change of parameter via program operation
Category
Name
(code)
Name/Function
Initial
setting
Data range
RUN
Program start
• Starts a program.
–
OFF → ON starts program operation
Control
input
PRG0 to 7
Internal program channel
selection
• Selects channel number.
–
Selects program channel by ON and OFF
(Binary digit)
Parameter
PK
Parameter keep
• Holds local parameter
0
0: Cancels local parameter at completion of
program operation.
1: Holds local parameter after completion of
program operation and maintains its
effectiveness.
Command
RE
Restore global parameter
• Cancels local parameter
and restore the global
setting
–
Cancels local parameter that has been held
and makes global parameter effective until
the next start of the program.
The following describe an example for use three different ways in setting of gains and conditions
for positioning completion depending on operation sequence: default, moving mounted load A,
and mounted load B.
Fig 8-20:Example for using three different gain settings
:
PK1
:
LO0.05
:
SG6
:
IN400
:
CH0
0?
LO0.12
1?
SG10
2?
IN100
3?
:
CH1
0?
LO0.2
1?
SG14
2?
IN100
3?
:
CH2
0?
RE
1?
Chan
e of settin
for mounted load
Keeps the local parameter after execution
of a channel program
Default setting in gains, and conditions for
completion of positioning.
Ú
Set as global parameter.
Setting in gains, and conditions for completion of
positioning for mounted load A.
Ú
Set as local parameter
.
Setting in gains, and completing
conditions of operation for mounted load
Ú
Set as local parameter.
Reset to global parameter.
Change of setting for mounted load B
Gets back to global parameter.