Fuji Electric ALPHA7, User Manual

Page: 114 / 662

CHAPTER 2 WIRING
Description of I/O Signals
2-67
2
Edit permission: Sequence input signal (Reference value 55)
Editing operation for parameters and so on is limited with an external sequence input signal.
 Function
The edit permission assigned to a CONT input signal controls editing operation made at the
keypad or PC Loader.
The following operation can be executed only while the edit permission remains turned on.

Parameter edit mode

Positioning data edit mode
This function can be used to avoid inadvertent operation of the keypad or PC Loader, thereby
avoiding movement of the servomotor, drop of the machine, etc.
 Parameter setting
To assign the edit permission to a sequence input terminal, specify the corresponding value ("55")
to the input terminal function setting parameter.
 Relevant description
(1) Parameter write protection
Specify "1" (write protection) to PA2_74 (parameter write protection) to disable key operation at the
keypad and parameter editing at the PC Loader.
The relationship between the edit permission and PA2_74 (parameter write protection) is shown in
the table below.
Edit permission
PA2_74
Parameter change operation
Edit permission
response
Not assigned 0 : Write enable ON ON (Possible)
OFF 0 : Write enable OFF OFF (Impossible)
ON 0 : Write enable ON ON (Possible)
Not assigned 1: Write protect OFF OFF (Impossible)
OFF 1: Write protect OFF OFF (Impossible)
ON 1: Write protect OFF OFF (Impossible)
(2) Edit permission response
The edit permission response is an output signal.
The signal is output if it is assigned to an output signal and the edit permission is turned on.
To assign the edit permission response to a sequence output terminal, specify the corresponding
value ("29") to the input terminal function setting parameter.