the lowest. The access authority corresponds to password. What
authority you have is dependent on what password you enter.
During unlocking, if you enter correct factory password, you can browse
all the screens, and you can change the factory settings, user
parameters, and you can even modify or clear user password and
operating password.
During unlocking, if you enter correct user password, you can browse
the user setting screen, and you can set the user parameters, modify or
clean operator password. But you cannot check and set factory
parameters.
After correctly entering operator password, you can only modify some
basic parameters for actual system running.
After correctly entering operator password, you can only modify some
basic parameters for actual system running.
To unlock the password, enter the password after selecting“3
Parameter setting” > “3.1 Password unlock” in the main menu.
On the top right corner of “Parameter setting the screen, the authority
information is displayed. When the password is locked, “ ” is
displayed. After unlocking, “ 1” or “ 2” or “ 3” is displayed and the
number indicates the authority level.
If no key or button is pressed within 5 minutes, the controller will lock
the password automatically. You can also lock the password in “3
Parameter setting” > “3.2 Password lock”.
4.5 Setting of Function Parameters
To prevent unauthorized modification of the operation and protection
parameters of screw compressor, you must enter the password with
corresponding authority before you make parameter settings.
The menu of the controller uses tree-type structure in different levels,
and is classified according to function parameters. The operator can
easily browse the desired parameters, but cannot browse those without
corresponding operating authority.
The method of setting parameters is similar to that of most HMI
(human-machine interface). You can select the parameters that need to
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