Honeywell DCP 250 Guida all'installazione

Global Technical Assistance Center Page 1

Product: DCP 250

FAQ: DCP 250 Start Up Guide

Question

This guide, along with manual (57-77-25-18), can be used to configure the DCP250.

Answer

Use the below information to install, wire and configure the DCP 250.

1. Installation –Section 2.2, Page 2

2. Wiring –Section 4.5, Page 13 to 28

3. Keypad Navigation –Section 5.5, Page 30

Global Technical Assistance Center Page 2

4. Application Setup –Section 7, Page 33

Before beginning configuration, consider how the controller will be used in your

application. For instance, how many control loops are needed, is cascade or ratio control

required, will the unit control a valve motor, do you need setpoint profiling etc.

Consideration should also be given to the output types, alarms and tuning method.

Pre-commissioning Considerations

An easy Setup Wizard is available for basic applications (see page 42) where the most

commonly required parameters are present for adjustment in turn. The wizard has a sub-

set of the full configuration menu options. For more complex applications where the

wizard is not sufficient, consideration must be given to the following fundamental

questions:

If fitted, how will the 2nd input be used?

• One loop only (if the 2nd input not fitted or not used in this application)

• Two independent control loops (see page 49).

• Valve feedback for loop 1 (see page 87).

• A “redundant” backup for the 1st input (see page 85).

• Cascaded with the first control loop (see page 80).

• A reference input for ratio control (see page 83).

How will the instrument physically control the process?

• Primary only or primary & secondary control outputs (see page 212).

• Direct valve motor drive outputs (TPSC, Three Position Step Control) (see page 86).

Which outputs will be used for control, and are alarms or event outputs needed?

• Output configuration (see page 56).

• Alarms & Profile Events (see page Alarm Types 208 & 226).

What are the sources for the setpoints?

• Local setpoint(s) only, or a remote setpoint input (see page 217& 228).

• Profile Control (see page 89).

Is Input re-configuration required?

• Analog input calibration & scaling (see page 73).

• Digital input functions (see page 77).

Global Technical Assistance Center Page 3

Which other features are to be used?

• Data Recorder (see page 99).

• Serial Communications (see page 111).

• USB Interface (see page 98).

One Loop

Two Loop, Cascade and Ratio

CAUTION: Configuration & commissioning must be completed before proceeding to Operation

Mode. It is the responsibility of the installing engineer to ensure that the configuration is safe.

Global Technical Assistance Center Page 4

5. Main Menu Access

Holding down and pressing from Operation Mode and most other screens will

cause the unit to enter the Main Menu. Each time or is pressed, the instrument

moves to the next menu level above. Sub-menu levels will require this sequence to be

pressed more than once in order to reach the Main Menu.

The factory default unlock code is 10 for all modes

6. Setup Wizard –Section 8.3, Page 42

An easy Setup Wizard runs automatically at first ever power-up. Follow the Wizard to

setup parameters required for basic applications. The parameters covered by the Setup

Wizard are marked with a w in the following sections covering the configuration mode

sub-menus. Once completed, the Setup Wizard exits to Operation Mode. Experts or

users with more complex applications can select the parameters they wish to set-up

directly from the Configuration Menus bypassing the Wizard.

7. Configuration –Section 8.5, Page 45

Use Main Menu Access above to enter into Configuration Mode. The factory default unlock

code is 10. Holding down and pressing toggle you back to the previous screen.

a. Input Configuration

i. Input 1, Page 46

ii. Input 2, Page 47

b. Auxiliary Input A, Page 48

c. Digital Input. Page 49

d. Control Configuration

i. Control Loop 1, Page 48

ii. Control Loop 2, Page 53

e. Output n Configuration, Page 56

f. Alarm n Configuration, Page 57

g. Communication, Page 58

h. Data Recorder, Page 59

i. Clock, Page 61

j. Display, Page 62

k. Lock Codes, page 63

l. Reset to Defaults, Page 63

Global Technical Assistance Center Page 5

8. Testing System –Operation Mode –Section 8, Page 36

Pressing the key cycles thru the Operation screens

a. Verify Input reads correctly

b. Check Output.

i. Go to the Auto/Manual Control screen and select Manual Control.

ii. Adjust % PWR using the Up and Down keys and observe final control.

iii. Return to the Auto/Manual Control screen and select Automatic Control.

c. Make sure Control Loop is set to Control Enabled.

d. Tune Loop –

i. Set Main Setpoint –In the Operation Mode, continually press the key until

the Setpoint Value screen appears. Adjust Main Setpoint using the Up and

Down keys.

ii. Automatic Tuning –Section 8.11, Page 70.

The automatic tune menu is used to engage pre-tune and/or self-tune to

assist setting up proportional bands and the integral and derivative time

values used by the control loops.

Pre-tune can be used to set PID parameters approximately. Self-tune (Pre-

tune needs to be run first) may then be used to optimize the tuning if

required. See the Tuning section on page 101 for more information.

FYI: Pre-tune can be set to run automatically after every power-up by

enabling Auto Pre-Tune (Not Recommended).

Steps to Automatic Tune

The Automatic Tuning Menu is entered from the Main Menu

Hold down and press to enter the Main Menu.

Press Up or Down to select the Automatic Tuning Menu.

Global Technical Assistance Center Page 6

Press to enter the Automatic Tuning Menu.

Enter 10 as the Unlock code.

Pre-Tune Method –Choose Pre-Tune at Value

Enter Pre-Tune Value. This is a Setpoint that in the range of the process.

Recommendation is at least 5% greater than the current Setpoint

Pre-Tune save Location. Here you can store the Pre-Tune values to one

of 5 different PID sets. Recommend PID Set 1.

Run Pre-Tune on Set 1 now? Select “Yes”to start the tuning process.

Once Yes is selected, a Status screen will appear with the Tuning status.

When “Stopped” appear on the lower half of the screen, Pre-Tune is

finished. Press enter to proceed.

Engage Self-Tune. If Yes is elected the Self-Tune feature will be active

and the Tune Led is lite continuously.

Auto-Pre-Tune at Power-Up? Recommend “None”.

DCP cycles back to step 6. Hold down and press to enter the Main

Menu.

Press Up or Down to select Operation Mode, then to exit.

Verify tuning by changing Setpoints. Make changes to PID values, if

necessary, in the Control Group.

Global Technical Assistance Center Page 7

9. Profiler Editing –Section 8.8, Page 66. Profiler explanation - Section 16, Page 89.

The Profiler allows for 64 Profiles and a maximum of 255 segments shared among Control

Loop 1 & 2.

a. Profile Mode Entry

Hold down and press to enter the Main Menu.

Press or to select the Profiler Setup Menu.

Enter 10 as the unlock code

Press to enter Profile Setup Mode.

b. Navigating the Profiler Setup Menu

Press to move forward, or to move backward through the screens.

Press or to select or change a value.

Holding down or for more than 1 second skips immediately to the

next/previous screen accepting all values as shown.

Hold down the and press to return to the Main Menu.

10. Profile Menu

General

Configuration

Enable Edit

wile Running

Timer Start

Function

Yes

Disable

Enable

Global Technical Assistance Center Page 8

Create a

profile

Enter a

Profile Name

Number Of

Loops

Profile

Starting

Setpoint

Profile Start

Trigger

*Recorder Version

Only

Profile

Recovery

Method

Profile

Recovery

Time

*Recorder Version

Only

Profile Abort

Action

How many

times to Cycle

a Program

Profile Start

Time

Unique Descriptive name up to 16 characters

2 *Two Loop Option

Current Setpoint

Process Variable

None

After Delay

Day and Time

If Day and Time trigger is selected, this is the Hour and

Minute the Profile will run

Profile Start

Day

If Day and Time trigger is selected, this is the Days the Profile

will run

Profile Start

Delay time

If After Delay Start trigger is selected, this is the time in Hours

and Minutes the Profile will run after a start request.

Control Outputs off (Caution this will stop all control)

Restart Profile from the beginning

Maintain Last Profile Setpoint

Use Controller Setpoint

Continue Profile from where it was when power failed

00.00 Program start immediately after Power restore

00.01 to 99.59 (HR.MN) Profile will continue after set time

Control Outputs off (Caution this will stop all control)

Maintain Last Profile Setpoint

Use Controller Setpoint

The number of times the Program should cycle. (1 to 9999 or

Infinite)

Cascade *Two Loop Option

Profile Header

Global Technical Assistance Center Page 9

Segment

Number

Segment

Type

Loop 1 Target

Setpoint

Segment

Ramp Rate

Shows Profile statement being created.

Ramp Time (Time to reach Target Setpoint)

Ramp Rate (Rate of change to a Target Setpoint)

Step (Jump to a target Setpoint)

Dwell (Keep current Setpoint)

Hold (Hold Profile until released)

Loop (Back to Previous Setpoint)

Join (Connect to another Profile)

End (terminate Profile)

Repeat Segment Then End (Repeat a sequence of joined

Profiles)

The Sepoint Value to be reached by Loop 1 at the end of the

segment.

Loop 2 Target

Setpoint

The Sepoint Value to be reached by Loop 2 at the end of the

segment.

Rate of Change to Target Setpoint (.001 to 9999.9 Units/Hour)

Segment

Dwell Time Time to stay at Current Setpoint (hh.mm.ss)

Number of

Loops

If the Segment type is Loop, enter the number of times to

repeat the Loop

Back to

Segment

Number

If the Segment type is Loop, enter the segment to loop back to

Segment

Ramp Time Time to ramp to next Segment Setpoint (hh.mm.ss)

Segment Data

Global Technical Assistance Center Page 10

Segment Hold

Release Type

*Recorder Version

Only

Time to

Repeat

Sequence

Hold Release

Time

Loop 1

Auto-Hold

Type

None (No Auto-Hold)

Above Setpoint (Hold if Auto-Hold Band value is exceeded)

Below Setpoint (Hold if Auto-Hold Band value is exceeded)

Band (Hold if Auto-Hold Band value is exceeded, either above

or below)

Loop 1

Auto-Hold

Band Value

Value beyond the Profile is held, based on Auto Hold Type

Loop 2

Auto-Hold

Type

*Two Loop Option

None (No Auto-Hold)

Above Setpoint (Hold if Auto-Hold Band value is exceeded)

Below Setpoint (Hold if Auto-Hold Band value is exceeded)

Band (Hold if Auto-Hold Band value is exceeded, either above

or below)

Loop 2

Auto-Hold

Band Value

*Two Loop Option

Value beyond the Profile is held, based on Auto Hold Type

Operator/Digital (No Auto-Hold)

Time of Day (Hold if Auto-Hold Band value is exceeded)

Time of day when a Hold Segment will release if the Release

Type is Time of Day.

Number of Time the entire sequence of Profiles should run, if

the last segment is Repeat Sequence Then End.

Segment End

Type

Control Outputs off (Caution this will stop all control)

Maintain Last Profile Setpoint

Use Controller Setpoint

Select profile

to Join If Final segment is set to Join, Choose a profile to Join to.

Event n Events 1 to 5 can be active during this segment.

Segment Data

Indice

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