What Happens When You Change Modes; Setpoints; Table 4-8 Changing Control Modes (Dual Display Only); Table 4-9 Procedure For Changing The Local Setpoints - Honeywell UDC2500 Product Manual

4.8.2 What happens when you change modes

Table 4-8 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

4.9 Setpoints

Introduction
You can configure the following setpoints for the UDC2500 controller.
•
A Single Local Setpoint
•
2 Local Setpoints
•
a Local Setpoint and a Remote Setpoint
Refer to Subsection 3.11 – Control Set Up Group for configuration details.
Changing the Setpoints

Table 4-9 Procedure for Changing the Local Setpoints

Step Operation
Select the
1
Setpoint
Change the
2
Value
Return to PV
3
Display
4/07
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:
Lower Lower Lower
Display Display 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..
or
To store immediately or will store after 30 seconds.
Lower Lower Lower
Display Display Display
UDC2500 Universal Digital Controller Product Manual
Monitoring and Operating the Controller
Definition
Result
101