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Chapter 9. TROUBLESHOOTING
9-5
■ Auto-tuning (AT) is not canceled by pressing
AT
in the basic display state
Key lock is enabled. Set variable parameter L O C setting to 0 to 2.
Cause Remedy
■ Setting group other than “P A R A” is not displayed by pressing
PARA
by selecting
the setting group in parameter set state
Key lock is enabled. Set variable parameter L O C setting to 0, 1 or 3.
Cause Remedy
■ Setting group other than “S E T” is not displayed by pressing
PARA
by selecting the
setting group in parameter set state
Key lock is enabled. Set variable parameter L O C setting to 0 or 3.
Cause Remedy
■ The controller does not enter the setting entry state by pressing
ENT
in the param-
eter setup state
“– – – –” is displayed on the lower display.
Unchangeable data is displayed on the lower
display.
Cause Remedy
This cannot be displayed nor set. This item sometimes
can be displayed or set by changing the setting of
related items.
This is a display-only item.
■ The controller does not change to setup group selection state and setting entry
state continues by pressing
PARA
in parameter setting entry state
The controller displays items by
PARA
assign-
ment.
Cause Remedy
Press
DISP
to return the controller to the basic display
state, and press
FUNC
+
PARA
.
■ The controller does not change to program setup state by pressing
FUNC
+
PROG
in
the basic display state
The controller is in the constant-value opera-
tion mode.
Key lock is enabled.
Cause Remedy
Set constant-value operation data
M .O D E setting to 0.
Set variable parameter
L O C setting to 0, 1 or 3.
■ The controller does not change to the setting entry state by pressing
ENT
in the
basic display state
The program setup cannot be changed. Set program parameter P R T C setting to 0.
Cause Remedy