United Security Products AVD-45c Manual Pagina 132

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118 UDC 6300 Process Controller Product Manual 1/03
4.12 Control2 Parameters Set Up Group, Continued
Table 4-11 Control2 Group Definitions, continued
Lower Display
Prompt
Upper Display
Range of Setting
or Selection
Parameter
Definition
AUTO BIAS
ENABLE
DISABLE
AUTO BIAS — is used for bumpless transfer when
transferring from local setpoint to remote setpoint.
Auto Bias calculates and adds a bias to remote
setpoint input each time a transfer is made. Available
for any analog Input RSP Source and if no tracking
is selected.
ENABLE - enables auto bias.
DISABLE - disables auto bias.
SP TRACK
SETPOINT TRACKING — The local setpoint can be
configured to track either PV or RSP as listed below:
Not configurable when Auto Bias is set.
NONE
NO TRACKING — If local setpoint tracking is not
configured, the LSP will not be altered when transfer
from RSP to LSP is made.
PV
PV - Local setpoint tracks the PV when in manual.
RSP
RSP - Local setpoint tracks remote setpoint. When
the controller transfers out of remote setpoint, the
last value of the remote setpoint (RSP) is inserted
into the local setpoint.
SP HILIM
0 to 100% of span input in
engineering units with
decimal place
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 inputs.
SP LOLIM
0 to 100% of span input in
engineering units with
decimal place
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 inputs.
*The Local Setpoint will automatically adjust itself to be within the setpoint limit range. For example, if SP
= 1500 and the SP HILIM is changed to 1200, the new Local Setpoint will be 1200.
ACTION
CONTROL OUTPUT DIRECTION — select Direct
or Reverse.
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.
OUT RATE
DISABLE
ENABLE
OUTPUT CHANGE RATE - Enables or Disables
the Output Change Rate. The maximum rate is set
at prompt “PCT/MIN UP” or “PCT/MIN DN”.
DISABLE - disables output rate
ENABLE - allows output rate
Table 4-11 continued on next page
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