Define Instruments LD-PRC Operating Manual

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LD-PRC

Process Controller

The LD-PRC process indicator and alarm

controller is a technically advanced but

cost eective instrument, designed spe-

cically for use in process applications

with 4–20mA or 0–10V DC inputs.

This controller has been designed for

ease of use, with intuitive, scrolling text

prompts that guide you step-by-step

through the setup process. The front

panel includes 5 buttons, for simple op-

erator interface, and the large 4-digit

display ensures that the gures can be

easily read from a distance.

Order Codes

LD–PRC Universal Process Controller

–HV

–LV

Options

–R2

–R4

–A 1 x mA/V analog output

85–265V AC / 95–370V DC

15–48V AC / 10–72V DC

2 x relay outputs

4 x relay outputs

Contents

1 - Specications ............................. 2

2 - Front Panel & Display ................ 3

3 - Wiring ......................................... 6

4 - Dimensions & Installation ......... 9

5 - Input Header Adjustment ........ 11

6 - Input Setup & Calibration ....... 13

7 - Setpoint Setup ........................... 18

8 - Setpoint Open Access ................ 21

9 - Reset PIN Numbers /

View Firmware Version ........... 21

SPECIFICATIONS

Input

Input signal Current (0/4–20mA) or Voltage (0–2/10V)

Excitation 24V DC (50mA max)

Sampling rate 10Hz

Resolution 16-bit

Accuracy 0.05% of reading

Ambient dri Typically 50ppm/°C

Power

Power supply

HV: 85–265V AC/95–370V DC, or LV: 15–48V AC/10–72V DC

Programming

Front panel buttons Up, Down, P (Prog/Enter), plus 2x Function Buttons for menu access

Calibration Factory set up for 4–20mA. Calibrated for 0/4–20mA and 0–2/10V. Simple header adjustment required for voltage input (see Section 5)

Security Input setup and setpoint functions have independent PIN code access

Display

Display type LED large display, 5 buttons

LED indicators 4 setpoint LED's

Relay Output

Number of relay outputs None, 2, or 4

Relay output type 5A Form A (3A 240V

AC max or 3A 30V DC max)

Analog Output

Number of analog outputs None or 1

Analog output type Isolated 16 bit

4–20mA/0–10V

OPTIONAL

Digits 1 row of 4 digits, large 20mm (0.8") size, 7-segment LED

Construction

Casing Panel mount case, 5 buttons

Ingress protection rating IP65 dust/

splash proof (face only)

Dimensions (H x W x D)

48 x 96 x 120mm (1.89 x 3.78 x 4.72")

Cutout area (H x W)

45 x 92mm (1.77 x 3.62")

FRONT PANEL & DISPLAY

2.1 - Front panel

SPX

The SP LED's are used to

indicate active setpoints.

This button is used to access the Input Setup & Calibration menu (Section 6).

This button is used to save your settings and advance to the next step in the setup process.

This button is typically used to scroll through options or increase values in the setup menu. Pressing this button from the main display allows you to view/reset the PEAK value (see 2.4).

This button is typically used to scroll through options or decrease values in the setup menu. Pressing this button from the main display allows you to view/reset the VA LY (valley) value (see 2.4).

48mm

(1.89")

96mm (3.78")

This button is used to access the Setpoint Setup menu (Section 7) and the Setpoint Open Access menu (Section 8).

2.2 - Display brightness

To adjust the display brightness, press the and buttons together from the

main display. BRI appears and toggles with the current setting. Use the and

buttons to adjust the LED backlight, and then press to nish.

2.3 - 7 Segment display characters

The 4 digit, 7 segment display is designed for large size and great visibility of numeric

characters in normal operating mode. When navigating the setup menus, this table

is a useful reference for the mixed-case alphabetic characters.

A B C D E F G

H I J K L M

N O P Q R S T

U V W X Y Z

! ? /

2.4 - Up and down button shortcuts

Pressing the and buttons from the main operational display allows instant

access to peak and valley values held in the controller's memory, as shown below.

PEAK Maximum measured process input since the unit was turned on or reset

VA LY Minimum measured process input since the unit was turned on or reset

PEAK or VA LY (valley) may be reset to zero by pressing the and buttons at

the same time while the variable is being displayed. These values may also be reset

using the function pins (see 3.5).

Press

at any time to return to normal operating mode.

+ POS

+ Signal

WIRING

BEFORE YOU BEGIN WIRING, ensure that the power supply is disconnected.

3.1 - Pinouts

A B

Key

3.1A Relay Output (See 3.3)

3.1B Analog Output (See 3.4)

3.1C Analog Input (See 3.2)

3.1D Function Pins (See 3.5)

3.1E Power Supply (See 3.6)

3.2 - Wire the analog input See 3.1C

The analog input module has an input type header that is congured for 0/4–20mA

input by default. This will need to be adjusted for voltage input applications.

Ideally you should do this before you continue wiring. Please see Section 5.

Then wire the analog input as required for your application, referring to the

diagrams below.

2-wire Current/Voltage Input

External excitation used

+ Supply

EXTERNAL

Supply

I /V

Signal

N/C

+ 24V EXC

NEG

+ POS

N/C

2-wire Current Input

+ Signal

+ POS

SP2 SP1

+mA

Loop powered sensor

SENSOR

+ 24V EXC

NEG

3-wire Current/Voltage Input

Controller supplied excitation

I /V

+ Supply

Signal

/ - Supply

+ 24V EXC

NEG

3.3 - Wire the relay outputs See 3.1A

If your controller has relay outputs tted, wire them as shown below. Relays can be

programmed to operate within the total span range of the controller.

-R2

-R4

SP3SP4 SP1SP2

3.4 - Wire the analog output

See 3.1B

If your controller has analog output tted, wire it as shown for either

voltage (0–10V) or current (4–20mA).

-A

–V+V–mA

Valley Tes tEnergy

Peak

3.5 - Wire the function pins

See 3.1D

Connect external switches to enable a function

to be executed when its switch is activated:

Valley Clears the Valley value

(also see 2.4)

Hold Holds the current display value

Tes t Resets the meter

Peak Clears the Peak value

(also see 2.4)

COM

3.6 - Wire the power supply See 3.1E

DO NOT attempt to wire your controller while the power is on. NEVER connect your low voltage controller to mains power.

Wire your controller for low or high voltage power supply, as show in the diagrams

below. Check the label on the unit against the colour of the connector:

› Orange =

High voltage (85–265V AC,

95–370V DC)

› Black =

Low voltage (15–48V AC,

10–72V DC)

High voltage (HV)

+DC

Live

HV power

supply

−DC

Neutral AC

Low voltage (LV)

+DC

Live

LV power

supply

−DC

Neutral AC

Once you have completed the wiring process it is safe to switch on your power

supply. Ensure that your display is functioning before you proceed.

120

155mm (6.10") minimum depth required behind panel

DIMENSIONS & INSTALLATION

4.1 - Case dimensions

mm (0.16")

92mm

(3.78")

(3.62")

mm (4.72")

mm (1.54")

Cabling Allowance

155mm (6.10") minimum depth required behind panel

(1.89")

120 mm (4.72") 39mm (1.54")

mm (0.16")

45mm

(1.77")

Cabling Allowance

Panel Meter Faceplate

Panel Cutout

4.2 - Installation instructions

A Prepare the Panel Cutout to

92 x 45mm ±.5 (3.62 x 1.77" ±.02),

as shown below.

Allow at least 155mm (6.10") depth behind the panel to accommodate the meter body, protruding connectors and cabling.

B Remove the Mounting Clips from

the meter back.

Panel Gasket

Mounting

Clips

Screws

C Slide the Panel Gasket over the

rear of the unit to the back of the

Meter Faceplate.

D From the front of the panel, insert

the meter into the Panel Cutout. Holding the unit in place, engage the Mounting Clips so that the tabs snap into place over the notches on the case.

E To achieve a proper seal, tighten

the Screws evenly until the unit sits rmly against the panel. Do not over-tighten the screws.

92mm ±.5

(3.62″ ±.02)

45mm ±.5

(1.77″ ±.02)

The analog input board for the LD-PRC has a header which can be set to 3 positions,

depending on your input type and range, as per the table below:

Header Position Used For

20mA 0–20mA and 4–20mA input ranges (default setting)

2V 0–2V input range

10V 0–10V input range

INPUT HEADER ADJUSTMENT

5.1 - Do I need to shi the input header?

In most cases the input header does not need to be changed from its default posi-

tion of '20mA' (suitable for 0–20mA and 4–20mA inputs).

You will need to shift the input header if:

› You are using the 0–2V or 0–10V input range, or

› You are changing your input type or range from a previous setup

5.2 - How to shi the input header

A If the meter is already installed, remove it from the panel, and unplug all plugs

from the back of the unit.

B Using a small screwdriver or similar implement,

press downward into one of the slots at the

rear of the case.

This will disengage the tab which holds the

back plate on, allowing it to be gently

levered away at one corner.

C Holding the loosened corner open

with one hand, disengage the le-

ver on the opposite slot.

DC IP Module(IP07)

D You should now be able to remove

the back plate. If it does not unclip

easily, you may need to disengage

the two remaining tabs by repeat-

ing steps 5.2B–C on the other side

of the meter.

E Slide the analog input module out

of the meter case. (See 3.1C to iden-

tify the input module.)

F Position the header on the input

module as required for your input

type and range:

20mA

Custom

10V

› 20mA 0–20mA & 4–20mA

224E 2006 ©

› Custom Not used

› 2V 0–2V

› 10V 0–10V

Note that you will also need to change the Input Mode in soware from the front panel - see 6.2C.

G Slide the input module back into the meter case.

Make sure that it is sitting in the tracks on the le and right. Press rmly until the input module is fully inserted and sits ush with the other boards that are visible from the back of the meter.

H Replace the back plate.

Begin by inserting the two lower tabs into the slots, and then position the upper tabs so that they will not catch on the top lip of the meter case. Apply rm pressure until the back plate clicks into place.

I Reconnect the plugs and return the meter to the panel installation.

Don't forget that once the unit is connected and powered up, you will need to

enter the Input Setup menu (6.2) and conrm that the correct Input Mode is

also selected (see 6.2C).

INPUT SETUP & CALIBRATION

6.1 - Enter Cal PIN number

A Enter the calibration mode by pressing the button.

_ _ ENTER CAL PIN NUMBER scrolls across the display and toggles with 0. Use

the

press . If the correct PIN is entered, setup is started at 6.2.

If an incorrect PIN number is entered, _ _ _ INCORRECT PIN NUMBER – ACCESS

DENIED scrolls across the display and it returns to normal operating mode.

You will have the opportunity to change your PIN number at the end of this section (6.6). If you have forgotten your PIN number, see Section 9.

and buttons to enter your security code (factory default '1'). Then

6.2 - Input setup

A _ _ INPUT SETUP scrolls across the display and toggles with SKIP. Press to

skip to 6.3, or the button and then to ENTR (enter) input setup.

B _ _ MAINS FREQUENCY scrolls across the display. Use the

to select 50HZ or 60HZ, and then press .

C _ _ INPUT MODE scrolls across the display and toggles with the current selec-

tion. Use the

2V (0–2V) or 10V (0–10V). Then press .

Note that if you change the INPUT MODE in this step, then the input header on the analog input module may also need to be changed. See Section 5 for more information.

D _ _ DECIMAL POINT POSITION scrolls across the display and toggles with

the current selection. Use the and buttons to select NODP (no decimal

point), 0.1, 0 .12 , or 0.123, and then press to accept and continue.

E _ _ DISPLAY ROUNDING scrolls across the display and toggles with the selected

rounding. Using the

and buttons to select: 0–20 (0–20mA), 4–20 (4–20mA),

and buttons, select: NONE, 2, 5, or 10. Press .

and buttons

Rounding is quoted in display counts and is not inuenced by decimal point position. For example, if your input signal is 5.3mA, the display will show: 5.3 (for rounding=NONE), 5.4 (for rounding=2), 5.5 (for rounding=5), or 5.0 (for rounding=10).

6.3 - Calibration

A _ _ CALIBRATION TECHNIQUE scrolls across the display and toggles with SKIP.

Press to skip to 6.4, or use the and buttons to select a calibration

method: either AUTO or MAN (manual). Then press .

¨ If you selected AUTO, complete steps 6.3B–D now.

¨ If you selected MAN, complete steps 6.3E–F now.

¨ If you selected SKIP, skip to 6.4 now.

AUTO (key-in) calibration uses zero and span values to calculate the scale and oset. This is the most accurate calibration method, but requires known low and high input signals (or the use of a calibrator).

MAN The manual calibration procedure uses low and high display values, and is intended for a pre-calibrated sensor with a known output range. (For example 4mA=0 and 20mA=1000.) It does not require any input signals to be applied to the controller during calibration.

Auto calibration

B _ _ APPLY LOW INPUT SIGNAL – – – ENTER LOW DISPLAY VALUE scrolls

across and toggles with the current selection. Apply the required low input sig-

nal, and wait a moment for the signal to stabilise. Then, using the

and

buttons, enter your low display value, and press to accept and continue.

C _ _ APPLY HIGH INPUT SIGNAL – – – ENTER HIGH DISPLAY VALUE scrolls

across and toggles with the current selection. Apply the required high input

signal, and wait a moment for the signal to stabilise. Then, using the

and

buttons, enter your high display value, and press .

D If Auto calibration was successful, you will be directed out of the calibration

menu to the operational display without viewing any further scrolling messag-

es. (To proceed to step 6.4, you must select SKIP at 6.3A.)

If calibration fails, _ _ CALIBRATION FAILED will scroll across the display and

you will be directed back to the operational display. The most likely cause of this

Input signal in counts

Sampling

error is that the controller could not detect any change in input signal during

calibration. Check your signal and connections, and repeat the procedure.

Manual calibration

E _ _ ENTER DISPLAY VALUE FOR [LOW MA/V] scrolls across the display, and

toggles with the current low display value. Use the

and buttons to adjust

the display value for the low level input signal. Then press .

The text string for [LOW MA/V] is determined by your INPUT MODE (selected in 6.2C): 0MA (for 0–20mA), 4MA (for 4–20mA) or 0 VOLTS (for 0–2V/0–10V).

F _ _ ENTER DISPLAY VALUE FOR [HIGH MA/V] scrolls across the display, and

toggles with the current high display value. Use the and buttons to adjust

the display value for the high level input signal. Then press .

The text string for [HIGH MA/V] is determined by your INPUT MODE (selected in 6.2C): 20MA (for 0/4–20mA), 2 VOLT S (for 0–2V) or 10 VOLTS (for 0–10V).

Manual calibration is now complete. You will be directed back to the opera-

tional display. (To proceed to step 6.4, you must select SKIP at 6.3A.)

6.4 - Averaging

Your controller has input signal averag-

ing, optimising stable measurement.

If the change in input exceeds the

averaging window value it will not

average, ensuring fast response when

there are large dierences between

readings.

A _ _ AVERAGING PARAMETERS scrolls across and toggles with SKIP. Press

to skip to 6.5, or the button and then to ENTR (enter) averaging setup.

B _ _ AVE SAMPLES scrolls across the display and toggles with the currently

selected averaging. Using the

and buttons, alter the number of input

Input exceeds averaging window

Number

of samples

Averaging window in displayed counts

samples that the controller will average, and then press .

Increasing the number of samples will stabilise measurement, but it will also slow down response rates. A typical value is 4.

C _ _ AVE WINDOW scrolls across the display and toggles with the currently se-

lected averaging window value. Using the and buttons, alter the signal

averaging window. Then press .

If your input signal contains large noise spikes, you can increase the size of the averaging window to ensure that these are still averaged. However, increasing the window size too far will reduce the ability of the controller to respond quickly to real changes in input signal. Setting AVE WINDOW to 0 will give continuous averaging as per the selected averaging samples. A typical value is 10% of your system capacity.

6.5 - Analog output setup

N.B. All new units are calibrated before shipping. Recalibration is only necessary if settings are wiped or the unit's accuracy requires verication aer a long period of use. e.g. 1 year.

A _ _ ANALOG OUTPUT SETUP scrolls across the display and toggles with SKIP.

If your controller does not have analog output installed, (or you do not wish to

congure your analog output now), press to skip to 6.6. Otherwise, press

the button and then to ENTR (enter) analog output setup.

B _ _ LOW SCALE VALUE FOR ANALOG OUTPUT scrolls across the display and

toggles with the currently selected low scale display value. Use the

and

buttons to enter your cal low position, and then press .

C _ _ HIGH SCALE VALUE FOR ANALOG OUTPUT scrolls across the display and

toggles with the currently selected high scale display value. Use the

and

buttons to enter your cal high position, and then press .

D _ _ CALIBRATE ANALOG OUTPUT? scrolls across the display and toggles with

SKIP. Press

now to skip analog output calibration and continue to 6.6, or the

button and then to ENTR (enter).

Factory analog output calibration is precisely set before shipping this instru-

ment, and should not be adjusted unless advised by the manufacturer.

¨ If you selected ENTR, connect a mA or volt meter across the analog output

connector (see 3.1B), and then continue to 6.5E.

¨ If you selected SKIP, go to 6.6 now.

E _ _ CAL LOW ANALOG OUTPUT scrolls across and toggles with a calibration

number shown in internal units (around -16000). Press the

until your multimeter displays your target low output (e.g. 4mA), then press .

F _ _ CAL HIGH ANALOG OUTPUT scrolls across and toggles with a calibration

number shown in internal units (around 30000). Press the

until your multimeter displays your target high output, then press .

Analog output calibration is now complete. The display will return to normal

operating mode.

and buttons

6.6 - Edit Cal PIN number

A _ _ EDIT CAL PIN NUMBER scrolls across the display and toggles with SKIP.

Press to skip and return to the operational display, or the button and

then to ENTR (enter) and change your PIN number.

B _ _ ENTER NEW CAL PIN NUMBER scrolls across the display and toggles with

the current PIN (default 1). Using the

Calibration PIN number. Then press to exit to the operational display.

and buttons, enter your new

The soware in your controller will allow you to congure up to 4 setpoints, however full functionality is only supported when relay output hardware is installed.

(Setpoints with no corresponding relay output hardware may be used as simple LED indicators, if desired. In this case, features requiring relay output functionality will continue to appear in the setup menu, but will be ignored by the controller.)

SETPOINT SETUP

7.1 - Enter Setpoint PIN number

A Enter setpoint setup mode by pressing and holding the button for 3 seconds.

_ _ ENTER SP PIN NUMBER scrolls across the display and toggles with 0.

Use the

Then press . If the correct PIN is entered, setup is started at 7.2.

If an incorrect PIN number is entered, _ _ _ INCORRECT PIN NUMBER – ACCESS

DENIED scrolls across the display and it returns to normal operating mode.

You will have the opportunity to change your PIN number at the end of this section (7.3). If you have forgotten your PIN number, see Section 9.

and buttons to enter your security code (factory default '1').

7.2 - Setpoint setup

A _ _ EDIT SETPOINT scrolls across the display and toggles with SKIP. Press

now to skip to 7.3, or use the and buttons to select a setpoint to edit,

and then press .

B _ _ SP VALUE scrolls across the display and toggles with the current value for

the selected setpoint. Using the

which the selected setpoint will activate, and then press .

C _ _ SP ACTIVATION scrolls across the display and toggles with the current acti-

vation for the selected setpoint. Using the

and buttons, adjust the display value at

and buttons, select the relay

Energised Above

activation to operate ABVE (above) or BLW (below) the setpoint value, and

then press .

ABVE: Relay turns on above the setpoint value and o below it. BLW: Relay turns on below the setpoint value and o above it.

D _ _ HYSTERESIS TYPE scrolls across the display and toggles with the current set-

ting for the selected setpoint. Using the and buttons, select either ALM

(alarm) or CTRL (control), and then press .

ALM - SETPOINT VALUE controls setpoint activation point. HYSTERESIS VALUE con- trols setpoint deactivation point.

CTRL - SETPOINT VALUE controls setpoint deactivation point. HYSTERESIS VALUE con- trols setpoint reactivation point.

Hysteresis band

Energised Below

Hysteresis band

Energised Below

E _ _ HYSTERESIS VALUE scrolls across the display and toggles with the hysteresis

value for the selected setpoint. Use the and buttons to adjust this value if

required, and then press .

The HYSTERESIS VALUE denes the separation band between setpoint activation and deacti- vation, and will operate as per the HYSTERESIS TYPE setting selected in 7.2D.

F _ _ MAKE DELAY scrolls across the display and toggles with the current make

delay time for the selected setpoint. This is the time delay between setpoint ac-

tivation, and when the relay turns on. Adjust this value in 0.1 second increments

using the and buttons, and then press .

G _ _ OPEN ACCESS TO SP VALUE scrolls across the display and toggles with the

open access permission setting for the selected setpoint. Use the

and to

select either YES or NO, and then press .

When enabled, this option allows the selected setpoint's value to be edited directly aer pressing the

button, without needing to enter a PIN number or go through all of the other op-

tions. Each setpoint can individually have this option enabled or disabled. See Section 8.

H The step that you proceed to now will depend on which setpoint you are editing

(selected in 7.2A):

¨ If you are currently editing SP 1, skip to 7.2J now.

¨ If you are currently editing SP 2–4, continue to 7.2I now.

I _ _ TRAIL SP1 scrolls across the display and toggles with the trailing setting for

the selected setpoint. A setpoint with TRAIL SP1 enabled will trail the SP Value

of SP 1. (The setpoint value of the trailing setpoint will eectively become an

oset value.)

Using the and buttons, turn trailing OFF or ON, and then press .

J _ _ EDIT SETPOINT scrolls across the display and toggles with SKIP. You are

now back at 7.2A. To edit another setpoint, follow the instructions from 7.2A–J

again. If you do not wish to edit another setpoint, press

now to skip to 7.3.

7.3 - Edit SP PIN number

A _ _ EDIT SP PIN NUMBER scrolls across the display and toggles with SKIP. Press

to skip and return to the operational display, or the button and then

to ENTR (enter) and change your PIN number.

B _ _ ENTER NEW SP PIN NUMBER scrolls across the display and toggles with the

current PIN (default 1). Using the

number. Then press to exit to the operational display.

and buttons, enter your new SP PIN

If none of the setpoints have their open access option enabled then this feature will

be disabled and the

A Begin by pressing the

B The name of the rst access-enabled setpoint will appear on the display and

toggle with the current value for that setpoint. Using the

adjust the selected value. Then press to accept and continue.

C The name of the next access-enabled setpoint will appear on the display, along

with its setpoint value. Repeat step 8B. The open access menu will proceed

through all access-enabled setpoints in this fashion. Pressing

bled setpoint will exit and return to the operational display.

SETPOINT OPEN ACCESS

button will not respond to a short button press. (See 7.2G.)

button for less than 3 seconds.

and buttons,

for the last ena-

RESET PIN NUMBERS / VIEW FIRMWARE VERSION

If you have forgotten your PIN number(s), follow the procedure below to reset both the Calibration and Setpoint PINs to their factory default of 1.

This procedure will also allow you to view the current soware installed on your device, which may be required for support purposes.

A Press

execute and you may need several tries to get it right.)

B A message will appear on the display, with details of the unit's current soware

conguration (Product name, Firmware Version, and Macro Version etc). At the

end, you will see – ALL PIN NUMBERS RESET TO 1.

C Both the Cal PIN number and the SP PIN number have now been reset to '1'.

You can change this, if required, by following the instructions in 6.6 (for Cal)

and 7.3 (for SP), using '1' to enter each menu initially.

, and at the same time. (This key combination can be dicult to

De ne Instruments

New Zealand

(Head O ce)

Auckland 0632, New Zealand

Auckland 0661, New Zealand

Ph Fax

www.de neinstruments.co.nz

10B Vega Place, Rosedale,

PO Box 245 Westpark Village,

: +64 (9) 835 1550

: +64 (9) 835 1250

sales@de neinstruments.co.nz

LD-PRC MV1.8 Document Revision Code: LD-PRC-MAN-16V04 Date Code: 160329

United States (Dallas, TX)

Ph: (214) 926 4950

sales@de neinstruments.com

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Define Instruments LD-PRC Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual