DCP200 Profile Controller & Recorder - Product Manual

 

 

 

 

 

 

Secondary On-Off

 

Sets the Secondary On-Off control hysteresis (deadband) from 0.1 to

 

Differential

 

10.0% of Span (centred about setpoint), when Primary PID with

 

 

 

Secondary On-Off control is used.

 

Primary & Secondary

 

Sets the combined Primary & Secondary On-Off Control hysteresis

 

On-Off Differential

 

(deadband) from 0.1 to 10.0% of Span. when Primary On-Off control

 

 

 

and Secondary On-Off control is used.

 

Primary Cycle Time

 

Sets the Primary Power Cycle Time (0.5s to 512s). For time

 

 

 

proportioned Primary Relay, SSR Driver or Triac Control Outputs.

 

Secondary Cycle Time

 

Sets the Secondary Power Cycle Time (0.5s to 512s). For time

 

 

 

proportioned Secondary Relay, SSR Driver or Triac Control Outputs.

 

Primary Power Upper

 

Sets the Maximum Primary Output Power Limit, from 0 to 100% of

 

Limit

 

available power. This value must be higher than the lower limit.

 

 

 

Caution: The instrument will not be able to correctly control the

 

 

 

process if sufficient power isn’t available to maintain setpoint. Use

 

 

 

with care!

 

Primary Power Lower

 

Minimum Primary Output Power limit, from 0 to 100%. This value

 

Limit

 

must be less than the upper limit. Caution: The instrument will not

 

 

 

be able to correctly control the process if the lower limit is more than

 

 

 

required to maintain setpoint. Use with care!

 

Secondary Power Upper

 

Maximum Secondary Output Power limit, from 0 to 100%. This value

 

Limit

 

must be higher than the lower limit. Caution: The instrument will not

 

 

 

be able to correctly control the process if sufficient power isn’t

 

 

 

available to maintain setpoint. Use with care!

 

Secondary Power Lower

 

Minimum Secondary Output Power limit, from 0 to 100%. This value

 

Limit

 

must be less than the upper limit. Caution: The instrument will not

 

 

 

be able to correctly control the process if the lower limit is more than

 

 

 

required to maintain setpoint. Use with care!

 

Sensor Break Pre-set

 

Sets the power level applied if the process input (or active RSP) is

 

Power Output

 

lost. Adjustable from 0 to 100% or -100 to +100% for Dual Control.

 

 

 

The default value is OFF (0% power). Caution: Use a value that will

 

 

 

maintain safe conditions.

 

Setpoint Selection

w

Sets the method to select the Active Setpoint. From: Local

 

 

 

Setpoint 1 only; Alternate Setpoint only; Select via Digital Input A or

 

 

 

B; or Operator Selectable (allows Setpoint 1 or Alternate Setpoint to

 

 

 

be selected from Operation Mode).

 

Alternate Setpoint

w

Up to two setpoints can be used, Local Setpoint 1 plus an Alternate

 

Source

 

The Alternate Setpoint can be selected from: Local Setpoint 2 or a

 

 

 

Remote Setpoint set via Auxiliary Input A or B.

 

Setpoint Upper Limit

 

The maximum allowable setpoint value. Adjustable within the Input

 

 

 

Span limits, but must be greater than the Setpoint Lower Limit.

 

 

 

Applies to both local and remote setpoints. Caution: Operators can

 

 

 

adjust the setpoint to any value between the Setpoint Upper and

 

 

 

Lower Limits. Use with care!

 

Setpoint Lower Limit

 

The minimum allowable setpoint value. Adjustable within the Input

 

 

 

Span limits, but must be less than the Setpoint Upper Limit. Applies

 

 

 

to both local and remote setpoints. Caution: Operators can adjust

 

 

 

the setpoint to any value between the Setpoint Upper and Lower

 

 

 

Limits. Use with care!

 

Setpoint Ramp Editing

 

Enables or disables the changing of the Setpoint Ramp Rate in

 

 

 

Operation Mode – Note: this does not turn off an active ramp. To

 

 

 

turn of an active ramp, set the Setpoint Ramp Rate to OFF.

 

 

 

 

 

51-52-25-150, Issue 1 – April 2009

Configuration & Use

Page 51

Page 51
Image 51
Honeywell DCP200 Secondary On-Off, Primary & Secondary, On-Off Differential, Primary Cycle Time, Secondary Cycle Time

DCP200 specifications

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