M800/M80/E80 Series Maintenance Manual
4 Failure Diagnosis
92
IB-1501273-F
For updating the time limit, users need to ask the MTB to issue a decryption code. The time limit is either updated or can-
celed when the decryption code is entered.
Decryption code is issued by MTB as decryption code file.
[How to enter decryption code]
(1) Save the decryption code file on an SD card (or USB memory).
(2) Insert the SD card into the control unit.
(3) Open the [Mainte] screen and select [Input/Output].
(4) In the [A:Dev] field, specify a memory card (or USB memory) in [Dev], a directory where the decryption code is stored
in [Dir], and the created decryption code file name in [File].
(5) Select "Memory" in [B:Dev] and press [Dir]. Then the menu key [Decrypt code] appears on the screen. Then the menu
key [Decrypt code] appears on the screen. When [Decrypt code] is pressed, "Decryption Code" automatically appears
in [Dir] and "PASSCODE.DATA" in [File].
If you enter "/RLS" in [Dir], the screen will be displayed in the same way.
(6) Press [Trnsfr A-→B].
(7) When a confirmation message appears, press either [Y] or [INPUT].
If the decryption code has successfully been set, "Setting complete normally" appears.
If the warning message is on the screen, this message will be removed.
If the alarm message is on the screen, this message will be removed.
If the decryption code is wrong, the message "Can't write file for dev B" will appear. Check the decryption code file
and contact the MTB.
The "Executing automatic operation" error occurs during program operation, and setting the code is disabled.
(8) Turn OFF and ON the NC power.
(1) If you turn OFF and ON the power after the time limit has expired, "EMG Emergency stop LINE" may appear at the same
time.
(2) The warning message "Z64 Valid term soon to be expired" can be erased with NC reset. Contact the MTB for details.
Renewing time limit
Precautions for expiry date
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