Honeywell UDC2800 Product Manual page 133

Chapter 4 - Configuration
Function
Prompt
SP High
Limit
(Note 1)
SP Low Limit
(Note 1)
Action
Direction
Output Rate
133
Selections or Range
of Setting
Last
Failsafe
0 to 100 % of PV
span in
engineering units
0 to 100 % of PV
span in
engineering units
Direct
Reverse
Parameter Definition
—This selection determines what position
Mode
the motor will be in when powered up or in the
failsafe position.
—At power-up in automatic mode,
Last Output
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.
—At power-up in manual mode,
Failsafe Output
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.
- This selection prevents the
Setpoint High Limit
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.
- This selection prevents the
Setpoint Low Limit
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.
Control Output Direction
reverse output action.
- The controller's output
Direct Acting Control
increases as the process variable increases.
Reverse Acting Control
decreases as the process variable increases.
- Enables or disables the
Output Change Rate
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.
- Select direct or
- The controller's output