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DR4300 Circular Chart Recorder
94 DR4300 Circular Chart Recorder Product Manual 12/03
4.3.11 Control Parameters Set Up Group
Introduction
If the recorder hardware supports outputs, the functions in this group are used to configure how the
recorder will control the process. (If configuring a limit controller, see Subsection 4.3.22 for special limit
control configuration parameters.)
Control group prompts
Table 4-9 lists all the function prompts in the control set up group. For a 2-pen recorder, the desired input
channel is displayed on the left side of the operator interface. Press FUNC
to select channel. Press
SETUP
key until “CONTRL” appears in the lower display. Press FUNC key to select the parameters.
Table 4-9 Control Parameter Definitions
Lower Display
Prompt
Upper Display
Range of Setting
or Selection
Parameter
Definition
CONTRL
ENAB
DIS
[factory setting]
Enables control.
Disables control. If control is disabled here, the rest of the
functions in this group will not be displayed. All alarm
group functions will be displayed.
NumSPs
ONE [factory setting]
TWO
NUMBER OF SETPOINTS—If this is set to TWO, then
the operator will be able to select the setpoint using the
UseSPn operating parameter prompt.
OUTALG
OUTPUT ALGORITHM —Use to specify the type of
output.
RLY [factory setting]
RELAY SIMPLEX—Type of output using one SPDT
relay. Its contacts can be wired for normally open (NO) or
normally closed (NC) action.
Control group function “HYST” is affected.
The second relay is available for alarming, and alarm
group functions will be displayed for Alarm 2.
RLYD
RELAY DUPLEX—Type of output using two SPDT
relays. Its contacts can be wired for normally open (NO)
or normally closed (NC) action.
Control group function "DBAND" is affected.
No relay is available for alarming, and no alarm group
functions will be displayed.
CUR
CURRENT SIMPLEX—Type of output using one 4 mA to
20 mA signal that can be fed to a positive or negative
grounded load of 0 to 600 ohms. The current output
signal can be recalibrated as described in Section 5 to
use any range within 4 mA to 20 mA to represent 0 to 100
% output.
CurT
CURRENT/TIME DUPLEX (Relay = Heat)—Variation of
duplex with current active for 0 % to 50 % output (tuning
set 2) and relay active 50 % to 100 % output (tuning set
1).
Control group functions “CURRNG” and "DBAND" are
affected.