Omega Products DP4 Installation Manual

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Instruction Manual

DIGITAL SPEED POTENTIOMETER WITH DISPLAY

FOR AC AND DC DRIVES

LT24 (0807)

DP4 CONTROL SERIES

P.O. Box 10
5000 W. 106th Street
Zionsville, Indiana 46077

Phone [phone]

Fax [phone]

www.dartcontrols.com

A-5-3128F

Quick Jump

What models and options are available?

See page 3.

Looking for detailed specifications?

See page 3.

W ant to get started fast?

See basic electrical hook-up details on page 5.
See mechanical installation details on page 4.
See some sample applications starting on page 17.

Need Help?

See troubleshooting on page 22.

Warranty

Dart Controls, Inc. (DCI) warrants its products to be free from defects in material and workmanship. The exclusive remedy

for this warranty is DCI factory replacement of any part or parts of such product which shall within 12 months after delivery
to the purchaser be returned to DCI factory with all transportation charges prepaid and which DCI determines to its satisfaction
to be defective. This warranty shall not extend to defects in assembly by other than DCI or to any article which has been
repaired or altered by other than DCI or to any article which DCI determines has been subjected to improper use. DCI assumes
no responsibility for the design characteristics of any unit or its operation in any circuit or assembly. This warranty is in lieu
of all other warranties, express or implied; all other liabilities or obligations on the part of DCI, including consequential
damages, are hereby expressly excluded.

NOTE: Carefully check the control for shipping damage. Report any damage to the carrier immediately. Do not attempt to
operate the drive if visible damage is evident to either the circuit or to the electronic components.

All information contained in this manual is intended to be correct, however information and data in this manual are subject
to change without notice. DCI makes no warranty of any kind with regard to this information or data. Further, DCI is not
responsible for any omissions or errors or consequential damage caused by the user of the product. DCI reserves the right
to make manufacturing changes which may not be included in this manual.

WARNING

Improper installation or operation of this control may cause injury to personnel or control failure. The control must
be installed in accordance with local, state, and national safety codes. Make certain that the power supply is
disconnected before attempting to service or remove any components!!! If the power disconnect point is out of sight,
lock it in disconnected position and tag to prevent unexpected application of power. Only a qualified electrician or
service personnel should perform any electrical troubleshooting or maintenance. At no time should circuit continuity
be checked by shorting terminals with a screwdriver or other metal device.

Table of Contents

Introduction .......................................................................................................................................2

General Features ...............................................................................................................................2

Models & Options ............................................................................................................................. 3

Model Options ............................................................................................................................... 3

Available Options ..........................................................................................................................3

Specifications ....................................................................................................................................3

Electrical........................................................................................................................................3

Mechanical ....................................................................................................................................3

Environmental ............................................................................................................................... 3

Cut-out and Mounting Dimensions ................................................................................................ 4

Mechanical Installation .....................................................................................................................4

Exploded Panel View .....................................................................................................................4

Installation & Diagrams ....................................................................................................................5

P1 Terminal Block Hook-Up Diagram............................................................................................ 5

P1 Terminal Block Descriptions ..................................................................................................... 5

-1 Option Wiring .............................................................................................................................6

Basic Operating Information ........................................................................................................... 6

Visual Reference ........................................................................................................................... 6

How to Change a Parameter's Value (The Short Story) ................................................................ 7

Operating the User Interface (The Long Story) ............................................................................. 7

Detailed Configuration Instructions ................................................................................................8

Default Configuration .....................................................................................................................8

Resetting the Unit to Factory Defaults........................................................................................... 8

JP1 (Program Enable Jumper)...................................................................................................... 8

Software Parameters..................................................................................................................... 9

Parameter Descriptions............................................................................................................... 11

Application Examples ..................................................................................................................... 17

User Interface for Industrial Conveyor Oven with AC Drive .......................................................17

Digital Front Panel for Regenerative Industrial Treadmill ..............................................................18

Programmable Digital Voltage Source with Enable Switch ..........................................................20

Troubleshooting ..............................................................................................................................22

Technical Support Options ..........................................................................................................22

What's Special About www.dartcontrols.com? ...........................................................................22

1

Introduction

The DP4 digital potentiometer is a compact, microprocessor-based unit capable of being either field or
factory configured for a number of industry's user-interface needs. The DP4 allows the user to adjust
the displayed value via the front-panel push buttons. As the displayed value is raised or lowered, the
output signal from the DP4 follows proportionally according to the unit's configuration. These units
supports both unipolar and bipolar output and are capable of automatically inverting, scaling, and
offsetting the output as needed. Utilizing Dart's new modular bus design techniques, the DP4 series
is ideal for volume OEM applications requiring specialized inputs and outputs. Contact Dart Controls'
Sales Department for details. This flexibility makes the DP4 series ideal for applications such as:

Water and Waste Treatment Systems

Conveyor Oven Controllers

Synchronized Conveyor Lines

Its durable 1/8 DIN aluminum housings can be easily mounted in a panel or control cabinet. New optional
pluggable terminal block allows the installer to quickly install or replace units without the hassle of
physically removing and reattaching wires. The units can be ordered with either standard European­style terminal block or optional “pluggable” connector.

General Features

- Microprocessor-based design combines the ultimate in responsiveness and accuracy in one package

- Digital front-end ensures long-term accuracy of output signal over time and temperature

- Non-volatile memory stores adjustable parameters even when power has been removed

- Factory or field programmable via front-panel keypad

- Adjustable parameters include display range, output range, output polarity, alarm options, etc.

- Internal program-enable jumper selectively prevents tampering with unit’s configuration

- Universal power supply accepts line voltages inputs from 85-265VAC @ 50-60Hz without switches
or jumpers. The unit automatically adjusts as needed.

- Transient voltage protection prolongs unit's life in harsh industrial environments

- Self-contained power supply for external sensor, limited to 5V @ 50mA

- Programmable alarm output with Form C contacts rated to 250VAC @ 5A

- 1/8 DIN durable aluminum housing for panel mounting.

- Large 4 digit, 1/2” LED display

- G.E. Lexan membrane and gasket (which are included) meet NEMA 4X standards when used with
NEMA 4X enclosures

- European terminal block or pluggable terminal block available

- Wide operating ambient temperature range of -10C to 45C (14F to 113F)

- Multiple operating modes including:

• Rate Mode – Displays in rate and non-rate units such as RPM, Gallons per Second, & percent

• Time Mode – Displays in time units such as HH:MM, MM:SS, SS:TT, or other unit

2

Model Options

Models & Options

Input Voltage

Model

DP4 85-265VAC 0-2 VDC

@ 50 - 60Hz Output Voltage

THROUGH

0-24 VDC

Pickup or

Encoder

Required?

No

Available Options

Option Suffix Description Example

-1 Expansion board which adds support for remote push button wiring via a European-style

-P Optional pluggable European-style terminal block DP4-P

-9 Blank Lexan DP4-9

terminal block.

DP4-1

Specifications

Electrical

Line Input Voltage ...............................................................................................................................................Any Voltage from 85-265 VAC

Line Input Frequency ............................................................................................................................................. Any Freq. from 48-62 Hertz

Display Range ..............................................................................................................................................................................

Units of Operation ..............................................................................................................................................User Programmable, any Unit

Onboard Power Supply (Externally Accessible) ............................................................................................................................

Isolated Alarm Relay Output Ratings ..........................................................................................................................................250VAC @ 5A

Pot Lo/Hi supply VDC range .................................................................................................................................. 0-2 VDC through 0-24 VDC

Pot wiper VDC range ...............................................................................................................................Pot Lo +50mV through Pot Hi -50mV

0.001 – 9999

5V @ 50mA

Mechanical

Display Type LED, Red, 4 Digit, ½” Height

Housing Type (with supplied gasket in NEMA 4X panel) ......................................................................................................

Connector Style (pluggable connector optional) ...........................................................................................

Terminal Block Torque Setting ........................................................................................................................................ 4.4 in. lb. Max or .5Nm

Faceplate Material ................................................................................................................................ Polycarbonate with GE Lexan Overlay

Housing Material ................................................................................................................................................................................Aluminum

Length (Required Panel Depth) ...........................................................................................................................................

Faceplate Width ..................................................................................................................................................................

Weight ASP10 ......................................................................................................................................................... 0.900 lb, 14.4 oz, 408.22g

12-position 5mm European Style

1/8 DIN NEMA 4X

4.625”, 117.48mm

4.539”, 115.29mm

Environmental

Operating Temperature Range ................................................................................................................................ -10C to 45C (14F to 113F)

Operating Humidity Range ............................................................................................................................................

3

95%, non-condensing

Mechanical Installation

Exploded Panel View

CUSTOMER

MOUNTING PANEL

(HOLE CUT-OUT FOR CONTROL

HOUSING APPROXIMATELY

3.622" WIDE BY 1.770" HIGH)

PANEL MOUNTING GASKET

(WITH THE ADHESIVE SIDE OF

GASKET FACING THE CUSTOMER

MOUNTING PANEL)

DP4

CONTROL

1) GASKET

2) (2) 6-32 X 3/4 PANHEAD BLACK OXIDE STAINLESS SCREWS

3) (2) #6 NUT WITH LOCKWASHER

Cut-out and Mounting Dimensions

4.000"

SUPPLIED WITH EACH CONTROL:

CONTROLS

Ite

Item

Rev

m

MICRO-DRIV

DIGITAL POT

Tac h

ValuPage

Tac

ValPage

Alarm

FwdNeg

ENTER

.140" x 2

5.000"

4.000"

3.622"

DP4

HOUSING DEPTH

4.625"

PA NEL CUT-OUT

0.885"

1.770"

2.289"

1.656"

4.625"

4

Installation & Diagrams

P1 Terminal Block Hook-Up Diagram

P1-1

P1-2

P1-3

P1-4

DP4

* P1-8 & P1-9 signal inputs may be programmed for a number of functions.

P1-5

P1-6

P1-7

P1-8

P1-9

P1-10

P1-11

P1-12

N

L

HI

W

LO

COM

+5V

S1

S2

NO

C

NC

2 AMP

AC INPUT

AC INPUT

HIGH OUTPUT

WIPER OUTPUT

LOW OUTPUT

COMMON

+5VDC

SIGNAL 1

SIGNAL 2

Alarm Output - Normally Open

Alarm Output - Common

Alarm Output - Normally Closed

*

*

}

85-265VAC

}

Connect to the speedpot
of the control being driven.
High must be positive

}

voltage with respect to low.

External Supply (+5V@50mA)

}

Form C
Relay output
(Programmable)

P1 Terminal Block Descriptions

P1-1 (AC / N) – For single phase AC lines connect the Neutral side of your AC line to this terminal.

For systems with two hot AC lines, connect either of the Hot AC lines to this terminal.

P1-2 (AC / L) – For single phase AC lines connect the Hot side of your AC line to this terminal. For

systems with two hot AC lines, connect either of the Hot AC lines to this terminal.

P1-3 (HI) - This is the POT HI reference terminal. This terminal must be connected to the most positive

speed pot input terminal of the partner control. This terminal will generally be referred to as Pot
HI or +V for positive supplies and Com for negative supplies.

P1-4 (WP) - This is the Wiper output terminal. This terminal will output an analog voltage signal

proportional to the referenced voltage signals connected to P1-3 (HI) and P1-5 (LO). This
terminal should be connected to the wiper or signal input of the partner control.

P1-5 (LO) - This is the POT LO reference terminal. This terminal must be connected to the most

negative speed pot input terminal of the partner control. This terminal will generally be referred
to as Pot LO or Com for positive supplies and –V for negative supplies.

P1-6 (COM) – This is the common point for the control logic. Any other equipment or source needing

to reference the control common will be connected to this terminal.

P1-7 (+5V) – This is a self-contained +5VDC power supply capable of up to 50mA. Various low-

voltage sensors can be driven from this supply if desired.

P1-8 (S1) – This is the programmable signal 1 input. It can be configured to perform a number of

special features including inhibit and jog.

P1-9 (S2) – This is the programmable signal 2 input. It can be configured to perform a number of

special features including inhibit and jog.

P1-10 (1NO) – This is the normally-open contact of the user assignable relay output.

P1-11 (1C) – This is the common contact of the user assignable relay.

P1-12 (1NC) – This is the normally-closed contact of the user assignable relay output.

5

-1 Option Wiring

The -1 option board is a module which allows external up and down push buttons to be wired to the unit.
These buttons operate exactly like the Up and Down buttons on the user interface. This module is
commonly used to allow PLCs or hand-held pendants to operate the front-panel remotely. Wires for the
external buttons are attached via a 3mm European terminal block on the -1 option board. The buttons
are activated by shorting the terminal labeled Com to either the Up or Down terminal.

REMOTE SWITCHING

MICROPROCESSOR

DOWN UP

SERIES PC BOARD

-1 OPTION
BOARD

-3

COMMON

-2

DOWN

-1
UP

Basic Operating Information

The DP4 digital potentiometer is a panel-mount digital-to-analog user interface. Put simply, it allows the
user to adjust the displayed value via push buttons on the front panel; and, outputs a proportional signal
according to its configuration. It can be configured to work with both single and bidirectional partner
drives. It also supports both unipolar and bipolar output supplies.

The DP4 can display values in rate and time formats. In Rate mode, output units such as Gallons-per­Minutes, RPM, and Percent are possible with just a few minor adjustments. In Time mode, output units
such as Hours:Minutes (HH:MM), Minutes:Seconds (MM:SS), and Seconds:Ticks (SS:TT) are
supported. In Time modes, the output will be inversely proportional to the displayed value in order to
represent a programmable process time.

See the application examples in this manual for additional information on how the DP4 can be
configured.

Visual Reference

Negative Indicator

Display Window

Reverse Indicator

CONTROLS

Neg

MICRO-DRIV

Ite

Item

Rev

m

Val uPage

ValPage

Fwd

DIGITAL POT

Forward Indicator

Alarm Indicator

Tach

Tac

Alarm

6

ENTER (Select) Button

ENTER

Up & Down Buttons

How to Change a Parameter's Value (The Short Story)

1. Hold down the Enter button until Parameter-Selection Mode is entered

2. Using the Up and Down buttons, select the desired parameter number to view or edit

3. Press the Enter button to change the value of the parameter

4. Using the Up and Down buttons, change the parameter's value as desired

5. Press the Enter button to permanently save the changes (Return to Parameter-Selection Mode)

6. Select parameter zero and press the Enter button to return to Running Mode

Operating the User Interface (The Long Story)

Although the DP4 user interface is very versatile, it is also simple to setup and operate. With just a few
button presses, it allows the user to configure a number of adjustable parameters. The LED display has
three basic operating modes: Running Mode, Parameter-Selection Mode, and Value Mode. Each of the
three modes have specific visual indicators that allow the user to immediately determine the current
state or mode of the user interface. Parameter-Selection Mode and Value Mode can only be

entered if the Program Enable jumper is in the “On” position.

Running Mode is the default display of the unit when power is applied. The DP4 will spend the majority
of its time in this mode. In Running Mode, the display shows the target value in the appropriate user­defined format of rate, time, or percentage. The control will continuously attempt to drive the motor at
the requested target rate. In this display mode, the Up and Down buttons increase or decrease the
displayed target value until either the display minimum or display maximum limit is reached. Depending
on the alarm configuration, these buttons may also serve as an alarm-silence or alarm-reset button.
Example displays for rate, time, and follower operating modes are 13.60, 45:30, and 9301.

Parameter-Selection Mode can be entered by simply pressing and holding the Enter button down for
three seconds. Once in Parameter-Selection Mode, the far left of the display will be a ‘P’. The right side
of the display will indicate the currently selected parameter number for editing purposes. Pressing the
Up or Down button will increase or decrease the selected parameter number on the display. Although
the parameter numbers are in numerical order, some numbers are skipped. These numbers represent
reserved parameters that are not yet implemented and are not displayed. Once the desired parameter
number is displayed, a press of the Enter button will change the display to the Value Mode. When in

Parameter-Selection Mode, pressing the Enter button with parameter 0 selected will cause the
unit to return to Running Mode. Example displays for Parameter-Selection Mode are P 1, P 12, and

P 54. See the Software Parameters for a list of available parameters.

Value Mode is used to modify the value of the selected parameter. When in Value Mode, the two dots
which form the colon, between digits two and three, will alternately flash (one, then the other) to inform
the user that a parameter’s value is being edited. Pressing the Up or Down button increases or
decreases the selected parameter’s value. See the Software Parameters for a list of allowable values
and ranges. Value changes take effect immediately. For example, when scrolling through the alarm
output conditions, the relay will activate as the always-active selection is passed. Once the desired
value is showing in the display window, pressing the Enter button again will return to Parameter­Selection Mode. The new value is not saved in permanent memory until the Enter button is pressed.
Removing power from the unit while in Value Mode may result in the specified new value being lost.

7