9-8
Chapter 9. MAINTENANCE & TROUBLESHOOTING
■
Setting group other than “
S
E
T
” is not displayed by pressing
PARA
by se-
lecting the setting group in parameter set state
Cause
Remedy
Key lock is enabled.
Set variable parameter
L
O
C
setting to 0 or 3.
■
The controller does not enter the setting entry state by pressing
ENT
in
the parameter setup state
Cause
Remedy
“– – – –” is displayed on the lower display.
This cannot be displayed nor set. This item sometimes
can be displayed or set by changing the setting of
related items.
Unchangeable data is displayed on the lower
display.
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
Cause
Remedy
The controller displays items by
PARA
assign-
ment.
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
Cause
Remedy
The controller is in the constant-value operation
mode.
Set constant-value operation data
.O
D
E
setting to 0.
Key lock is enabled.
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
Cause
Remedy
The program setup cannot be changed.
Set program parameter
P
R
T
C
setting to 0.
