Mitsubishi Electric M800W Series, Connection And Set Up Manual

Page: 653 / 702

M800W/M80W Series Connection and Setup Manual
38 Appx.1: Setting the System Lock
614 IB-1501268-K
System lock is a function for a machine tool builder to set a valid term to use the machine that machine user is using.
If a decryption code is not input by a specified limit, the servo ready finish signal will be forcibly turned OFF and the use
of the machine will be disabled.
Encryption key and decryption code need to be set in order to enable the system lock.
38.1 Setting the Encryption Key
The system lock function is enabled by inputting an encryption key file while the system lock is disabled.
While the system lock is enabled, the date and time of the CNC cannot be set to a past date and time. Make sure to set
the date and time correctly before inputting the encryption key.
(1) Set "#1249 set21/bit2" to "1".
(2) Save the encryption key file on a SD card (or USB memory).
(3) Insert the SD card (or USB memory) card into the control unit.
(4) Select [Input/Output] on the Mainte screen.
(5) Enter an encryption key in the Input/output screen.
(a) Set the device name, directory and file name in the "A:Dev" area.
(b) Set "Memory" for the device section and "/CRE" for the directory section of the "B:Dev" area.
Contents in the directory and file name sections will be written over.
Directory section: "Encryption Key"
File name section: "ENCKEY.DAT"
(c) Press the menu key [Trnsfr A->B].
(d) When a confirmation message appears, press either [Y] or [INPUT].
If the encryption key has been set, "Setting complete normally" appears.
If the encryption key has not been set, the message "Can't write file for dev B" appears.
Check the encryption key file and set it correctly.
[Possible causes of this failure]
- Length of the encryption key is wrong; not eight letters
- You have entered the encryption key on two or more lines
- Unavailable letter is included (non-ASCII character or lower-case alphabet)
If an encryption key not intended to be input has been input, it can be reset by setting the correct encryption
key with the same process. Note that, however, an encryption key cannot be reset after an expiration date is
set by inputting the decryption code.
If the specification is not provided, an error occurs when an encryption key is input.
(6) If the encryption key has been set correctly, an alarm message "Z41 Decryption code is missing" appears.
To enable the system lock, go on to the "Setting of Expiration Date" (next page).
If you do not want to enable the system lock due to the miss entry of the encryption key, etc., the system lock will be
invalid by turning the power OFF and ON again to clear the encryption key.
CAUTION
The setting of encryption key and decryption code are required only when the system lock is used.