CHAPTER 3 BASIC OPERATION
E5CK
3--10
3.5 Protect Mode
•
This parameter allows you to protect until start of operation parameters
that do not change during operation to prevent unwanted modification.
•
The set value of the “security” (protect) parameter specifies the range
of protected parameters.
•
When this parameter is set to “0”, parameters are not protected.
•
When this parameter is set to “1” to “3”, the number of modes that can
be displayed on the menu display is limited.
When set to “1”, level 0 to 2, setup, expansion and option modes only can
be selected. When set to “2”, only level 0 to 2 modes can be selected. When
set to “3”, only level 0 and 1 modes can be selected.
•
When this parameter is set to “4” to “6”, operations in only the level 0
mode can be selected, and the mode is not displayed on the menu display.
•
When this parameter is set to “5”, only the “PV/SP” parameter can be
used.
•
When this parameter is set to “6”, only the “PV/SP” parameter can be
used. (The set point can not change.)
•
Default is “1”.
•
This parameter disables use of the
A/M
key during operation. For exam-
ple, if you protect use of the
A/M
key by the “A/M key protect” parameter
(protect mode) during auto operation, the controller cannot be set to the
manual mode, preventing manual operation of the controller during
operation.
•
Let’s protect the setup, expansion, option and calibration modes. Set the
parameters as follows:
“security” = “2: Usable only in level 0 to 2 modes”
(1) Press for 1 second minium the
A/M
and
keys simultaneously, the
controller enters the protect mode.
(2) In the protect mode, the top parameter in the protect mode “security”
is displayed. The parameter default is “1”. Press the
key to change
the parameter setting to “2”.
(3) Press for 1 second minium the
A/M
and
keys simultaneously, the
display changes to the “PV/SP monitor” parameter (level 0 mode).
J
Security
J
A/M key protect
Setting Example
A/M
A/M
