Installation manual

Introduction
900M050U00  Athena Controls, Inc. 1-7
1.4 Security
The 16C, 18C, and 25C controllers can be configured to limit the values that can be
changed using the keypad. For example, the access level can be set to allow operators
to change only the setpoint or the manual mode output percentage.
A controller can be set to any of the access levels in the table below. The sequence of
levels in the table is from most restrictive to least restrictive. New 16C, 18C, and 25C
controllers are shipped with the access level set to cnF9cnF9 (configuration).
Instructions for changing the access level are in Section 17.
Displayed
Abbreviation
Access
Level Description
Loc.OLoc.O
keypad
lockout
Highest security level; no access.
While the access level is “keypad lockout”, no controller values can be
changed, not even the setpoint. To escape, press the key for
approximately ten seconds, until Loc.OLoc.O is displayed, then press .
SPSP
setpoint only
Setpoint or manual outputs can be adjusted; no access to mode or
menus.
When the access level is “setpoint only”, the keypad can be used to
change the setpoint or the manual mode output percentage. However,
the operator will not be able to change the controller from normal
(automatic) mode to manual, and vice versa.
SPPLSPPL
setpoint plus
mode
Setpoint or manual outputs can be adjusted; mode can be
changed; no access to menus.
When the access level is “setpoint plus mode”, the keypad can be used
to change the setpoint, manual mode output percentage, and control
mode, including executing recipes, and switching from normal
(automatic) to manual, and vice versa. (See 1.3.1 for a description of all
control modes.)
USErUSEr
user
All the “setpoint plus mode” functions, and limited access to
menus.
When the access level is “user”, the keypad can be used to do all the
functions available in “setpoint plus mode”. At the “user” level, the
keypad can also be used to view and change the values on the control
menu (tuning parameters), adjust the Autotune damping parameter, and
view and change all the ramp/soak parameters.
CnF9CnF9
configuration
All the “user” functions, and access to all menus except
calibration.
When the access level is “configuration”, the keypad can be used to
perform all controller functions and access all menus, except the
calibration menu.
FACtFACt
factory Access to everything.
When the access level is “factory”, the keypad can be used to do all
controller functions, including re-calibrating the controller.
The controllers are calibrated at the factory. Usually the controllers will
never need re-calibration. See 5.2 for the circumstance that dictates re-
calibration. Do not leave the controller set to this access level after
you have re-calibrated the controller.