Configuring Two Loops Of Control; Table 4-23 Procedure For Selecting Two Loop Algorithm; Figure 4-5 Hi/Lo Override Selector - Honeywell UDC3500 Product Manual

Monitoring and Operating the Controller
ATTENTION
The output of the unselected loop tracks the selected loop to within 5 % when in Auto mode to
eliminate windup. This tracking is done in the direction opposite to the Override Select
configuration; i.e., for High Select, the unselected output tracks within 5 % of the lower output,
and vice versa for Low Select.
P V 1
P V 2

4.18 Configuring Two Loops of Control

Introduction
This instrument can operate using two independent loops of control or internal Cascade
control.

Table 4-23 Procedure for selecting Two Loop Algorithm

Step Operation
Select Algorithm
1
Set-up Group
Select the PID
2
Loops
2
3
220
PID
OUTP UT 1
LOOP 1
PID
OUTP UT 2
LOOP 2

Figure 4-5 Hi/Lo Override Selector

Press
Until you see:
Lower Lower Lower
Upper Display =SET
Display Display Display
Lower Display = ALGORTHM
Until you see:
Func
Upper Display = (available selections)
Loop 1/2
Lower Display = PIDLOOPS
To change selection
or
To accept changes.
Lower Lower Lower
Display Display Display
UDC3500 Universal Digital Controller Product Manual
OUTP UT 1 TERMINALS
HI/LO
OVERRIDE
S ELECTOR
OUTP UT 2 TERMINALS
IF DES IRED
Result
10/05