Honeywell UDC2800 - Page 129

Function
Prompt
Selections or Range
of Setting
Parameter Definition
the value set at prompt Switchover Value, the
controller will use Gain 2 or Proportional Band
2, Rate 2 Min, and Reset Mins/Rpt 2 or Reset
Rpts/Min 2. The active PID SET can be read in
the lower display.
Similarly, the controller switches between the
other PID sets based upon the values
configured for Switchover Value 2/3 and
Switchover Value 3/4.
ATTENTION: Other prompts affected:
Switchover Value 1/2, Switchover Value
2/3 and Switchover Value 3/4.
4 Sets SP
Switchover
Four Sets SP Automatic Switchover- When the
setpoint is LESS than the value set at prompt
Switchover Value, the controller will use Gain
1 or Proportional Band 1, Rate 1 Min, and
Reset Mins/Rpt 1 or Reset Rpts/Min 1.
When the setpoint is GREATER than the value
set at prompt SW VALUE, the controller will
use Gain 2 or Proportional Band 2, Rate 2
Min, and Reset Mins/Rpt 2 or Reset Rpts/Min
2.
Similarly, the controller switches between the
other PID sets based upon the values
configured for Switchover Value 2/3 and
Switchover Value 3/4.
ATTENTION: Other prompts affected:
Switchover Value 1/2, Switchover Value
2/3 and Switchover Value 3/4.
Switchover
Value 1/2
Value in
engineering units
within PV or SP
range limits
Automatic Switchover Value- This is the value of
Process Variable or Setpoint at which the
controller will switch from Tuning Constant
Set #1 to Set #2.
129
Chapter 4 - Configuration