CHAPTER 4 APPLIED OPERATION
E5GN
4–18
4.9 Using the Key Protect level
Ă• To move to the protect level, press the and keys simultaneously
for at least three seconds.
Ă* The key pressing time can be changed in "protect level move time"
(advanced function level).
Ă• The protect level protects parameters that are not changed during conĆ
troller operation until operation is started to prevent them from being
modified unintentionally. Three levels of protection are provided on the
E5GN, operation/adjustment protection", initial setting/communicaĆ
tions protection" and setting change protection".
Ă• The protect level setting restricts the range of parameters that can be used.
The following table shows the relationship between set values and the
range of protection.
Set value
Level
0 1 2 3
PV f f f f
Operation
level
PV/SP f
level
Other
Adjustment level
Ă• When this parameter is set to 0", parameters are not protected.
Ă• Default is 0".
This protect level restricts movement to the initial setting level, commuĆ
nication setting level and advanced function setting level.
Set value Move to initial setting level
Move to communications
setting level
0
Possible (”move to advanced function
setting level enabled” parameter dis-
played)
Possible
1
Possible (”move to advanced function
setting level enabled” parameter not
displayed)
Possible
2 Not possible Not possible
Ă• Default is 1".
This protect level protects setup from being changed by operating the keys
on the front panel.
Set value Description
OFF Setup can be changed by key operation.
ON Setup cannot be changed by key operation. (The protect level can be
changed.)
Ă• Default is OFF".
JKey protect
F Operation/adjust-
ment protection
: Can be displayed and
changed
f : Can be displayed
: Cannot be displayed
and move to other levels
not possible
F Initial setting/
communications
protection
F Setting change
protection
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