What Happens When You Change Modes - Honeywell UDC2300 Product Manual

Operation

6.4.2 What happens when you change modes

Table 6-4 Changing Control Modes (Dual Display Only)
Control Mode
Manual to
Automatic Local
Setpoint
Manual or Auto
Local to Automatic
Remote SP
Automatic Remote
Setpoint to Manual
or Auto Local
Setpoint
6.5 Setpoints
Introduction
You can configure the following setpoints for the UDC2300 controller.
•
A Single Local Setpoint
•
2 Local Setpoints
•
a Local Setpoint and a Remote Setpoint
Refer to Subsection 4.11 – Control Set Up Group for configuration details.
Changing the Setpoints
Table 6-5 Procedure for Changing the Local Setpoints
Step Operation
1 Select the
Setpoint
Change the
2
Value
3 Return to PV
Display
58
The Local Setpoint is usually the value previously stored as the Local Setpoint.
PV tracking is a configurable feature which modifies this. For this configuration,
when the controller is in manual mode, the local setpoint value tracks the process
variable value continuously.
The Remote Setpoint uses the stored ratio and bias to calculate the control
setpoint.
If configured for local setpoint tracking, RSP, when the controller transfers out of
remote setpoint the last value of the remote setpoint is inserted into the local
setpoint.
If LSP tracking is not configured, the local setpoint will not be altered when the
transfer is made.
Press
Until you see:
DISPLAY
Upper Display = PV
Lower Display = SP or 2L (Value)
[ ] [ ] To change the Local Setpoint to the value at which you want
the process maintained. The display "blinks" if you attempt to
enter setpoint values beyond the high and low limits..
To store immediately or will store after 30 seconds.
DISPLAY
UDC2300 Controller Product Manual
Definition
Result
12/00