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Function
Selections or
Prompt
Range of Setting
Lower Display
Upper Display
TO RUN
ToBEGIN
STOP I
MAN FS
TO LOCK
TO Aout
TIMER
AM STA
TO TUNE
SP Init
04/08
RUN—Contact closure starts a stopped SP Ramp or Program.
Upper left character blinks "R". Reopening the contact puts
controller in HOLD mode.
This selection applies to either loop.
EXTERNAL SP PROGRAM RESET—Contact closure resets SP
Program back to the beginning of the first segment in the program
and places the program in the HOLD mode. Program cycle number
is not affected. Reopening switch has no effect.
This selection applies to either loop.
ATTENTION Once the last segment of the setpoint program has
timed out, the controller enters the mode of action specified in the
configuration data and the program cannot be reset to the
beginning of the first segment by digital input closure.
INHIBIT INTEGRAL (RESET)—Contact closure disables PID
Integral (Reset) action.
MANUAL FAILSAFE OUTPUT—Controller goes to Manual mode,
output goes to the Failsafe value.
ATTENTION This will cause a bump in the output when switching
from Automatic to Manual. The switch back from Manual to
Automatic is bumpless. When the switch is closed, the output can
be adjusted from the keyboard.
KEYBOARD LOCKOUT—Contact closure disables all keys.
Lower display shows LOCKED if a key is pressed.
AUTOMATIC OUTPUT—Contact closure sends output to the
value set at Control prompt AUTO OUT when the controller is in
the Automatic mode. Reopening the contact returns the controller
to the normal output.
ATTENTION Does not apply to Three Position Step Control.
TIMER—Contact closure starts timer, if enabled. Reopening the
switch has no effect.
TO AUTO/MANUAL STATION—Contact closure causes the
control loop to perform as follows:
PV = Input 2
Action = Direct
Control algorithm = PD+MR
PID SET = 2
SP = LSP 2
INITIATE LIMIT CYCLE TUNING—Contact closure starts the
tuning process. The lower display shows TUNE ON. Opening the
contact has no effect.
SETPOINT INITIALIZATION—Contact closure forces the setpoint
to the current PV value. Opening the contact has no effect.
UDC3200 Universal Digital Controller Operator Manual
Parameter
Definition
55
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