Honeywell DR4300 manual Control Output Direction -In what direction do

Models: DR4300

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Configuration, Startup, and Operation

 

 

 

 

of Recorder with Display

 

 

 

 

 

 

 

Lower Display

Upper Display

Parameter

 

 

Prompt

Range of Setting

Definition

 

 

 

or Selection

 

 

 

 

 

 

 

 

SP HI

–999 to 9999

SETPOINT HIGH LIMIT*—This selection prevents the

 

 

 

[factory setting = 100]

setpoint from going above the value selected here. The

 

 

 

setting must be equal to or less than the upper range of

 

 

 

 

the input.

 

 

 

 

 

 

 

SP LO

–999 to 9999

SETPOINT LOW LIMIT*—This selection prevents the

 

 

 

[factory setting = 0]

setpoint from going below the value selected here. The

 

 

 

setting must be equal to or greater than the lower range

 

 

 

 

of the input.

 

 

 

 

 

 

*The setpoint will automatically adjust itself to be within the setpoint limit range. For example, if SP = 1500 and SP HI is changed to 1200, the new setpoint will be 1200.

ACTION

 

 

CONTROL OUTPUT DIRECTION—In what direction do

 

 

 

you want the recorder output to go when the process

 

 

 

variable increases.

 

DIR

[factory setting]

DIRECT ACTING CONTROL—The recorder's output is

 

 

 

ON or increasing when the difference between setpoint

 

 

 

and PV (PV–SP) is positive.

 

RE

 

REVERSE ACTING CONTROL—The recorder's output is

 

 

 

OFF or decreasing when the difference between setpoint

 

 

 

and PV (PV–SP) is negative.

 

 

 

OUT HI

0 % to 100.0 % of output for

HIGH OUTPUT LIMIT—This parameter is used to specify

 

relay output

the highest output to be used in Auto mode.

 

–5 % to 105 % for current

This prompt is displayed only if the “CTRALG” (control

 

output

 

algorithm) is set to “PIDA” or “PDMR”.

 

[factory setting = 100]

 

 

 

 

OUT LO

0 % to 100.0 % of output for

LOW OUTPUT LIMIT—This parameter is used to specify

 

relay output

the lowest output to be used in Auto mode.

 

–5 % to 105 % for current

This prompt is displayed only if the “CTRALG” (control

 

output

 

algorithm) is set to “PIDA” or “PDMR”.

 

[factory setting = 0]

 

 

 

 

DBAND

–5.0 % to 25.0 %

DEADBAND— Use this parameter to specify an

 

[factory setting = 0]

adjustable gap between the operating ranges of relay 1

 

and relay 2 in which neither relay operates (positive

 

 

 

value) or both relays operate (negative value). It is the

 

 

 

difference between the nominal trip points of relay 1 and

 

 

 

relay 2.

 

 

 

This prompt appears only if control group function prompt

 

 

 

“OUTALG” is set to “RLYD”, “CurT”, or “Tcur”.

 

 

 

HYST

0.0 % to 5.0 % of PV span

HYSTERESIS (OUTPUT RELAY ONLY) is an adjustable

 

[factory setting = 0]

overlap of the ON/OFF states of each control relay. This

 

is the difference between the value of the process

 

 

 

variable at which the control relays energize and the

 

 

 

value at which they de-energize. Only applicable for

 

 

 

ON/OFF control.

 

 

 

 

12/03

DR4300 Circular Chart Recorder Product Manual

97

Page 109
Image 109
Honeywell DR4300 manual Control Output Direction -In what direction do, Hysteresis Output Relay only is an adjustable