Honeywell UDC2800 - Page 133

Function
Prompt
Selections or Range
of Setting
Parameter Definition
Mode—This selection determines what position
the motor will be in when powered up or in the
failsafe position.
Last Last Output—At power-up in automatic mode,
the motor position will be the last one prior to
power down. When the unit goes into
FAILSAFE, it will stay in automatic mode;
motor will not be driven to the configured
failsafe position.
Failsafe Failsafe Output—At power-up in manual mode,
the motor will be driven to either the 0 % or
100 % output position, whichever is selected
at prompt FAILSAFE. For Burn out/None,
when the unit goes into FAILSAFE, it will go to
manual mode; motor will be driven to the
configured failsafe position.
SP High
Limit
(Note 1)
0 to 100 % of PV
span in
engineering units
Setpoint High Limit- This selection prevents the
local and remote setpoints from going above
the value selected here. The setting must be
equal or less than the upper range of the PV.
SP Low Limit
(Note 1)
0 to 100 % of PV
span in
engineering units
Setpoint Low Limit- This selection prevents the
local and remote setpoints from going below
the value selected here. The setting must be
equal or greater than the lower range of the
PV.
Action
Direction
Control Output Direction- Select direct or
reverse output action.
Direct Direct Acting Control- The controller’s output
increases as the process variable increases.
Reverse Reverse Acting Control- The controller’s output
decreases as the process variable increases.
Output Rate Output Change Rate- Enables or disables the
Output Change Rate. The maximum rate is set
at prompt PCT/M UP or PCT/M DN. Only
available for PID-A, PID-B, PD+MR control
algorithms.
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Chapter 4 - Configuration