Honeywell UDC3500 Product Manual page 160

Configuration
Function Prompt
Lower Display
146
Selections or
Range of Setting
Upper Display
AM STA
TO TUNE
SP Init
TRACK 1
TRACK 2
To OUT2
TO RSP
D L1/2
RST FB
UDC3500 Universal Digital Controller Product Manual
Parameter
Definition
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.
OUTPUT 1 TRACKS INPUT 2—Contact closure
allows Output to track Input 2. While the switch is
open, the output is in accordance with its pre-
defined 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.
OUTPUT 2 TRACKS INPUT 2—Contact closure
allows Output 2 to track Input 2. While the switch is
open, the output is in accordance with its pre-
defined 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.
OUTPUT 2 OVERRIDES OUTPUT 1—Contact
closure forces Output 1 to track Output 2. Opening
the contact restores normal operation.
ATTENTION Does not apply to Three Position
Step Control.
TO REMOTE SETPOINT—Contact closure selects
the Remote setpoint.
LOOP DISPLAY—Contact closure displays the loop
not currently being displayed. Opening contact
returns to the original loop display.
EXTERNAL RESET FEEDBACK—Contact closure
allows Input 2 to override the internal reset value.
10/05