Honeywell UDC 2300, Product Manual

Page: 142 / 185

Function Parameter Reference Guide
132 UDC2300 Controller Product Manual 12/00
RUN RUN – Contact closure starts a stopped SP Ramp or Program. Upper left
characters blinks ”R”. Reopening the contact puts controller in HOLD
mode.
BEGN
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 HOLD mode. Program cycle number is not affected. Reopening
switch has not effect.
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.
NO_I INHIBIT INTEGRAL (RESET) – Contact closure disables PID Integral
(Reset) action.
MANFS
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 after pressing the
MANUAL/AUTO
key to the put the controller in
the Manual mode.
LOCK KEYBOARD LOCKOUT – Contact closure disables all keys. Lower
display shows LOCKED if a key is pressed.
TIMR TIMER – Contact closure starts timer, if enabled. Reopening the switch has
no effect.
TUNE
INITIATE LIMIT CYCLE TUNING – Contact closure starts the tuning
process. The lower display shows TUNE ON. Opening the contact has no
effect.
INIT
SETPOINT INITIALIZATION – Contact closure forces the setpoint to the
current PV value. Opening the contact has no effect.
RSP TO REMOTE SETPOINT – Contact closure selects the Remote setpoint.
MNLT MANUAL LATCHING – Contact closure transition forces the loop to
Manual mode. Opening the switch has no effect. If the
MANUAL/AUTO
key
is pressed while the switch is closed, the loop will return to Automatic
mode.
TRAK
OUTPUT TRACKING – Contact closure allows output to track Input 2. For
the Output Tracking, when the switch is open, the output is in accordance
with its predefined functionality. When the switch is closed, the output
value (in percent) will track the Input 2 percent of range value. When the
switch is reopened, the output will start at this last output value and normal
PID action will then take over control. The transfer is bumpless.
NOTE: Output Tracking does not apply to Three Position Step Control.