Activate The Optical Switches; Key Lock Of Optical Switches; Operation By Push Button - Oval EL0137 Instructions Manual

E-126-3-E

9.2.1 Activate the optical switches

To reset the key lock mark " " of optical switches, carry out the procedure shown below.
If an optical switch undergoes reaction, " " mark will be displayed, and if the operation is normally executed,
the key lock mark " " will disappear.
PROG
(1) Push switch long.
SELECT
(2) If PUSH SEL is displayed, push switch long.
CLEAR
(3) If PUSH CLr is displayed, push switch long.
(4) The key lock " " display disappears and the key is unlocked.
If "PUSH PrG" is displayed during the operation shown above, an operation error is generated. Carry out the
operation from step (1) again.
If nothing is operated after the key is unlocked, the status will automatically return to key lock status in 30
seconds.
When the key is locked, the key lock mark " " is displayed in the upper part of the display.

9.2.2 Key lock of optical switches

CLEAR
PROG
If you touch the optical switches and at the same time for three seconds or wait for 30 seconds,
the key will be locked. If the key is locked, the key lock mark will be displayed in the upper part of the display as
shown below.
Fig. 9.3 Indication of key lock mark

9.2.3 Operation by push button

If the front lid is removed, three mechanical push buttons are allocated under three optical switches in the same
order as optical switches. To prevent malfunction, check the key lock of optical switches is activated before
removing the front lid.
PROG SELECT CLEAR
These keys operate in a same way as optical switches.
Select
Fig. 9.4 Operation of push button
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