Red Lion TCU - Manual (Page 28)

Front Panel Program Disable
There are several ways to limit the programming of parameters from the
front panel buttons. The settings of the parameters in the Lockout Module, the
code number entered, and the state and/or function programmed for the User
Input (Terminal #7) affect front panel access.
It is possible to have the program disable function on versions with the
User Input, even if the User Input is not programmed for program disable
(PLOC), by the use of a code number. Versions that do not have the User Input
are dedicated to the program disable function.
The following charts describe the possible program disable settings
depending on your model.
Models With User Input
User Input State Code Number Description
Inactive or User
Input not
programmed for
PLOC 0 Full access to all modes and
parameter modules.
Active with User
Input programmed
for PLOC 0 Access to protected parameter
mode only. Code number does not
appear.
Active with User
Input programmed
for PLOC
OR
User Input not
programmed for
PLOC
Any # between
1 & 250 Access to protected parameter
mode. Correct programmed code
number allows access to
unprotected parameter mode and
configuration modules.
Note: A universal code number 222 can be entered to gain access to the
unprotected mode and configuration modules, independent of the
programmed code number.
Models With Program Disable
Program Disable Code Number Description
Inactive 0 Full access to all modes and
parameter modules.
Active 0 Access to protected parameter
mode only. Code number does not
appear.
Active Any # between
1 & 250 Access to protected parameter
mode. Correct programmed code
number allows access to
unprotected parameter mode and
configuration modules.
Note: A universal code number 222 can be entered to gain access to the
unprotected mode and configuration modules, independent of the
programmed code number.
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