Define Instruments LD-UAC Operating Manual

1

LD-UAC

Universal AC Controller

The LD-UAC universal AC indicator and

alarm controller is ideal for monitoring

and controlling input power, voltage,

current or frequency in a wide variety of

applications.

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–UAC Universal AC 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 Setup & Calibration ........ 11

6 - Setpoint Setup ........................... 17

7 - Setpoint Direct Access ............... 21

8 - Reset PIN Numbers /

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

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

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1

SPECIFICATIONS

Input

Input signal Current (0-5A AC) or Volt­age (0-300V AC)

Ambient dri 50ppm/°C typical

Accuracy

True RMS Current: 0.05%
True RMS Voltage: 0.1%
Power: 0.1%
Frequency: 0.01Hz

Frequency resolution ±0.001Hz

Power

Power supply

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

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)

OPTIONAL

Programming

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

Display

Display type LED large display,
5 buttons

LED indicators 4 setpoint LED's

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")

Analog Output

Number of analog outputs None or 1

Analog output type Isolated 16 bit

4-20mA/0-10V

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

OPTIONAL

3

2

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 5).

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 will show the current values
for PWR (power) AMP (current), PEAK or P.F. (power factor). See 2.4 for more
information.

This button is typically used to scroll through options or decrease values in the
setup menu. Pressing this button from the main display will show the current values
for ENRG (energy), FREQ (frequency), VLTS (voltage) or VALY (valley). See 2.4 for
more information.

48mm

(1.89")

96mm (3.78")

This button is used to access the Setpoint Setup menu (Section 6) and the
Setpoint Direct Access menu (Section 7).

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.

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

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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

! ? /

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

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2.4 - Up and down button shortcuts

Pressing the and buttons from the main operational display allows instant

access to a number of values held in the controller's memory. These variables will ap-

pear in the order shown in the table below, and will cycle continuously at each press

of the or button. Press at any time to return to normal operating mode.

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

the same time while the variable is being displayed.

Up and Down button shortcuts:

PWR Power

AMP Current

PEAK Max. measured weight

since the unit was
turned on or reset

P.F. Power Factor

ENRG Energy (see 3.5 or 6.2F

FREQ Frequency

VLT S Voltage

VA LY (Valley) Min. measured

and buttons at

to reset)

weight since the unit
was turned on or reset

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

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Secondary

Single Phase 2-Wire (Current)

VOLTAGE

Single Phase 2-Wire (Voltage/Freq)

3

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)

D

EC

3.1E Power Supply (See 3.6)

3.2 - Wire the analog input See 3.1C

Wire the analog input as required for your application, referring to the diagrams

below.

CURRENT

INPUT

CT, 5A

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

INPUT

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Secondary

VOLTAGE

Single Phase 2-Wire (Power/P.F.)

Secondary

VOLTAGE

Single Phase 3-Wire (Power/P.F.)

SP2 SP1

SP3SP4 SP1SP2

+mA

CURRENT

INPUT

CT, 5A

INPUT

CURRENT

INPUT

CT, 5A

INPUT

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

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

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

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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 Activating this pin will reset the Valley

value to the current display value

Energy Activating this pin will clear the

Energy value to zero

(You can also do this using the 'Energy

Pulse' feature [see 6.2F])

Tes t Activating this pin will reset the meter

Peak Activating this pin will reset the Peak value to the current display value

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,

High
voltage
(HV)

+DC

Live

AC

−DC

Neutral
AC

Low
voltage
(LV)

+DC

Live

AC

10–72V DC)

HV power

supply

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.

LD-UAC-MAN-19V01 (0211) Copyright © 2019 Dene Instruments

LV power

supply

−DC

Neutral
AC