Yamato Scientific Hitech controller type Ⅳ - Manual (Page 25)

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3.2 Setting and Releasing Panel Key Lock
Panel Key Lock deactivates the eight keys on the control panel, except for indication
Switching key. With this special function, you can prevent accidental or unauthorized
key operation ashen the programmable controller is in service.
[Setting Panel Key Lock] [Setting Panel Key Lock] [Setting Panel Key Lock] [Setting Panel Key Lock]
Key
Operation
Main
Display Sub
Display Explanation
Push the
MODE key
and then
push either
▲ key or▼
key Push MODE key several times to show
(Lock) on the main display. The
display shows the present setting
(Lighting)
Approx. 1 second later
Push
ENTER
key. Activates Panel Key Lock Set/Release mode. Activates Panel Key Lock Set/Release mode. Activates Panel Key Lock Set/Release mode. Activates Panel Key Lock Set/Release mode.
↑
↓
Alternate
indication
:Releases Panel Key Lock.
: Sets Panel Key Lock
Push ▲ or
▼ key.
When you want to lock the panel keys, push
▲ or ▼ key to show
on the
main display
(Lighting)
Approx. 1 second later
Push
ENTER
key.
The displays return to
their initial indications
shown immediately
before you pushed MODE
key.
Accept the setting of Panel Key Lock. Accept the setting of Panel Key Lock. Accept the setting of Panel Key Lock. Accept the setting of Panel Key Lock.
The displays return to their initial
indications shown immediately before you
pushed MODE key.
Note: Panel Key Lock ON is default setting When you are setting the operation
parameters, you cannot switch this setting.
[Releasing Panel Key Lock] [Releasing Panel Key Lock] [Releasing Panel Key Lock] [Releasing Panel Key Lock]
Push MODE key to activate Panel Key Lock Set/Release mode, and switch OFF
( ) the lock
Note. When the panel key lock is turned on, MODE key skips all the modes except for
Panel Key Lock Set/Releasing mode.