Yamato Scientific Hitech controller type Ⅳ User Manual

Page 25

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]
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.

↑
↓

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.

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]
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.