Circutor DHC-96 Aac Instruction Manual

AC Ammeter

DHC-96 Aac

INSTRUCTION MANUAL

(M226B01-03-19A)

DHC-96 Aac

2

Instruction Manual

DHC-96 Aac

SAFETY PRECAUTIONS

Follow the warnings described in this manual with the symbols shown below.

DANGER

Warns of a risk, which could result in personal injury or material damage.

ATTENTION

Indicates that special attention should be paid to a speci c point.

If you must handle the unit for its installation, start-up or maintenance, the following should be taken into consideration:

Incorrect handling or installation of the unit may result in injury to personnel as well as damage to the unit. In particular, handling with voltages applied may result in electric shock, which may cause death or serious injury to personnel. Defective installation or maintenance may also lead to the risk of  re. Read the manual carefully prior to connecting the unit. Follow all installation and maintenance instructions throughout the unit’s working life. Pay special attention to the installation standards of the National Electrical Code.

Refer to the instruction manual before using the unit

In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can result in injury or damage to the unit and /or installations.

CIRCUTOR, SA reserves the right to modify features or the product manual without prior noti cation.

DISCLAIMER

CIRCUTOR, SA reserves the right to make modi cations to the device or the unit speci ca-

tions set out in this instruction manual without prior notice.

CIRCUTOR, SA on its web site, supplies its customers with the latest versions of the device speci cations and the most updated manuals.

www.circutor.com

Instruction Manual

3

DHC-96 Aac

REVISION LOG

Table 1: Revision log�

Date Revision Description

11/18 M226B01-03-18A Initial Version

01/19 M226B01-03-19A

Change in the following sections:

6.1. - 7. - 10.

DHC-96 Aac

SYMBOLS

Table 2: Symbols�

Symbol Description

In compliance with the relevant European directive.

Device covered by European directive 2012/19/EC. At the end of its useful life, do not leave the unit in a household waste container. Follow local regulations on electronic equipment recycling.

DC current

~

AC current

Note : Devices images are for illustrative purposes only and may differ from the actual device.

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Instruction Manual

DHC-96 Aac

1�- VERIFICATION UPON RECEPTION

Check the following points when you receive the device:

a) The device meets the specications described in your order. b) The device has not suffered any damage during transport. c) Perform an external visual inspection of the device prior to switching it on. d) Check that it has been delivered with the following:

- An installation guide,

If any problem is noticed upon reception, immediately contact the transport company and/or CIRCUTOR's after-sales service.

2�- PRODUCT DESCRIPTION

The DHC-96 Aac is a device designed to measure and display the current and frequency AC single-phase. The device has 2 programmable current scales: 1 A and 5 A.

The device features:

- 4 keys that allow you to browse between the various screens and program the device.

- LED display, displays all parameters.

- 2 fully programmable relay outputs

- 2 digital inputs.

- 1 programmable analog output

- Communications RS-485.

Instruction Manual

Model

M22358

M223580030000

Table 3:DHC-96 Aac list of models�

Power Supply

80 �� 270 V ~ 80 �� 270 V 18 �� 36 V

 

- -

-



7

DHC-96 Aac

3�- DEVICE INSTALLATION

3.1.- PRIOR RECOMMENDATIONS

In order to use the device safely, it is critical that individuals who handle it follow the safety measures set out in the standards of the country where it is being used, use the necessary personal protective equipment, and pay attention to the various warnings indicated in this instruction manual.

The DHC-96 Aac device must be installed by authorised and qualied staff.

The power supply plug must be disconnected and measuring systems switched off before

handling, altering the connections or replacing the device. It is dangerous to handle the device

while it is powered.

Also, it is critical to keep the cables in perfect condition in order to avoid accidents, personal

injury and damage to installations.

The device’s functionality is limited to the category of measuring voltage or specic current

values.

The manufacturer of the device is not responsible for any damage resulting from failure by the

user or installer to heed the warnings and/or recommendations set out in this manual, nor for

damage resulting from the use of non-original products or accessories or those made by other

manufacturers.

If an anomaly or malfunction is detected in the device, do not use it to take any measurements.

Disconnect the device from the power supply (device and measuring system power supply) before maintaining, repairing or handling the device's connections. Please contact the after-sales service if you suspect that there is an operational fault in the device.

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Instruction Manual

DHC-96 Aac

3.2.- INSTALLATION

Terminals, opening covers or removing elements can expose parts that are hazardous to the touch while the device is powered. Do not use the device until it is fully installed.

The device should be installed inside an electric panel or enclosure, and panel-mounted.

To install it, take the following steps:

1�- Make a cut in the panel, according to the dimensions in Figure 1�

91

Figure 1: Cut in the panel�

2�- Remove the device’s xing clips (Figure 2).

Clip de jación / Fixing clip

Figure 2: Installation�

44

3�- Insert the device into the cut in the panel. 4�- Fit the xing clips until the device is xed to the panel.

The device should be connected to a power circuit protected by a fuse with a maximum nominal current of 0�25 A.

Instruction Manual

9

3.3.- DEVICE TERMINALS

Table 4:List of terminals of the DHC-96 Aac�

Device terminals 1 : L, Auxiliary power supply. 31: Alarm output 2, relay (Common) 2: N, Auxiliary power supply. 32: Alarm output 2, relay (NO) 4: Current measurement input 58: A, RS-485

5: Current measurement input 59: B, RS-485

15: -, Analog output

16: +, Analog output

70: Common digital input

71: Digital input 1

28: Alarm output 1, relay (Common) 72: Digital input 2

29: Alarm output 1, relay (NO)

DHC-96 Aac

71

72

71 72

1

1 2

59

70

58

59

70

2

Figure 3:Terminals of the DHC-96 Aac�

28

28 29

29

31

32 1615

32

5

15 16

4

Note: Before disconnecting the current measurement connection cables, make sure that you disconnect the transformer’s primary cable and bridge the secondary.

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Instruction Manual

DHC-96 Aac

3.4.- CONNECTION DIAGRAM

Entradas Digitales

Digital inputs

Salida Analógica

Analog output

+-

1 2

72 58 28 29 31 32 1615

C

70 5971

B A

RS-485

1 2

Salida de relés

Relay output

1 2

Alimentación Auxiliar

Power Supply

I

45

S1S2

P2

P1

Figure 4: Current measurement DHC-96 Aac�

If the current being measured is higher than the nominal input current, 5A, a current transformer should be connected to the device.

If more than one device is connected to the current transformer, it is necessary to connect them in series.

Instruction Manual

11

DHC-96 Aac

4�- OPERATION

4.1.- DISPLAY

The device features a 5-digit LED display, which is used to display the measured parameters and to congure these parameters

Display

00000

Keyboard

Figure 5: Display DHC-96�

4.2.- KEYBOARD FUNCTIONS

The DHC-96 Aac features 4 keys to display and congure the device, Figure 5.

Table 5: Keyboard functions�

Key Keystroke

Previous screen

In the conguration menu:

Scroll through the digits Next screen

In the conguration menu:

Increase the value of the digit

Long keystroke (> 3s):

Enter in conguration menu

In the conguration menu:

Jump to the next level / Conrm an operation

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Instruction Manual

5.000

DHC-96 Aac

4.3.- RELAY OUTPUTS

The device features two programmable relay outputs (terminals 28, 29, 31 and 32, as shown in

Figure 6) that can be programmed as remote control signals or alarms in the setup menu (“5.4.-

RELAY OUTPUT 1” and “5.5.- RELAY OUTPUT 2”).

Entradas Digitales

Digital inputs

Salida Analógica

Analog output

+-

1 2

C

70 5971

B A

RS-485

1 2

Salida de relés

Relay output

45

4.4.- ANALOG OUTPUT

72 58 28 29 31 32 1615

1 2

Figure 6: Relay outputs, digital inputs and Analog output�

The device has an analog output (terminals 15 and 16 of Figure 6) programmable through the conguration menu (“5.3.- ANALOG OUTPUT”)

4.5.- ENTRADAS DIGITALES

The device has two digital inputs (terminals 70, 71 and 72 of Figure 6). The relay outputs can be activated depending on the value of the digital inputs (See “5.4.- RELAY OUTPUT 1” and “5.5.-

RELAY OUTPUT 2”)

4.6.- DISPLAY

The DHC-96 Aac features 4 display screens, Table 6.

Current

Instruction Manual

Table 6: Display menu�

Display menu

13

F

50.00

Frequency

di

12

do

12

DHC-96 Aac

Table 6 (Continuation) : Display menu�

Display menu

Status of digital inputs:

1, status of the digital input 1: ashes when the input is activated 2, status of the digital input 2: ashes when the input is activated

Status of the relay outputs:

1, status of the relay output 1: ashes when the relay is activated 2, status of the relay output 2: ashes when the relay is activated

If the current value measured by the device is higher than a % of the nominal value, the device can make the digits on the display start ashing, in the form of a light alarm. See “5.6.3.- LIGHT

ALARM”

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Instruction Manual

DHC-96 Aac

5�- CONFIGURATION

Press and hold the key for more than 3 seconds to enter the conguration menu of the device. The conguration of the device is organized in different menus, Figure 7.

5.000

>3s

rEAd

inPt

ñ- ñ-

Conn

Ao-1

do-1

ProG

Conguration of the input

Communications

Analog output

Relay output 1

do-2

SEt

Relay output 2

Conguration of the display

Software version

uEr

Figure 7: Conguration menu of the DHC-96 Aac�

From any screen of the conguration menus, if no key is pressed for 4 minutes, the device leaves the conguration menu and returns to the display screen.

Note: In “ANNEX A.- CONFIGURATION MENU” you can see the complete conguration menu.

Instruction Manual

15

DHC-96 Aac

On the rEAd screen, press the , key to access the conguration menu in the display mode, i.e., the conguration parameters cannot be modied.

On the rEAd screen, press the or keys to access the conguration menu in the programming mode, i.e., the conguration parameters can be modied.

rEAd

ProG

CodE

0000

inPt

Figure 8: Access the conguration menu in the programming mode.

Before accessing the conguration menu, it is necessary to enter the access password.

CodE

Figure 9: Access password�

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Default password: 0001

0000

Note : The password can be modied, see “5.6.1.- PASSWORD OF ACCESS”�

To validate the data, press the key.

If the password entered is incorrect, the Errmessage will appear for a few seconds and the device will return to the password conguration screen, Figure 9.

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Instruction Manual

inPt

DHC-96 Aac

5.1.- CONFIGURATION OF THE INPUT

Figure 10, shows the main screen of the input conguration menu, from which the primary

current and secondary current are congured.

Figure 10: Input conguration menu, main screen.

Press the key to open the conguration menu.

inPt

in i

Unt. i

in 2

Unt.2

Figure 11:Input conguration menu.

5�1�1�- PRIMARY CURRENT

This screen is used to congure the value of the primary current.

1.000

oFF

5.000

oFF

in i

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

When you reach the last digit and press the key, you select the position of the decimal

Instruction Manual

1.000

17

point. Use the to modify the decimal point.

Minimum conguration value: 0. Maximum conguration value: 9999.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�1�2�- UNITS OF THE PRIMARY CURRENT

This screen is used to congure the units of the primary current.

DHC-96 Aac

Unt. i

Use the ,key to browse the different options: oFF, the unit of the primary current is A. on, the unit of the primary current is kA.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�1�3�- SECONDARY CURRENT

This screen is used to congure the value of the secondary current.

in 2

oFF

5.000

18

Use the and keys at the same time to congure the value.

Use the ,key to browse the different options:

5.000, for the current scale of 0 ... 5 A.

1.000, for the current scale of 0 ... 1 A.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

Instruction Manual

DHC-96 Aac

5�1�4�- UNITS OF THE SECONDARY CURRENT

Note: This parameter cannot be modied.

Unt.2

Use the and keys to browse the conguration screens of the menu.

5�1�5�- SAVE CONFIGURATION

To save the conguration of the device, press the key, until the main screen of the input conguration menu is opened, Figure 10.

Press the key again to show the validation screen.

SAuE

Use the ,key to browse the different options: no, exit the conguration without saving the changed values. YES, save the changed conguration values.

oFF

no

Press the key to validate the data and exit the conguration menu.

Instruction Manual

19

Conn

--

DHC-96 Aac

5.2.- RS-485 COMMUNICATIONS

Figure 12, shows the main screen of the communications menu, where the parameters of the

RS-485 communications are congured.

Figure 12: RS-485 communications menu, main screen�

Press the key to open the conguration menu.

--

Conn

Addr

bAUd

dAtA

Figure 13:RS-485 communications menu

5�2�1�- MODBUS ADDRESS

This screen is used to congure the modbus address of the device.

Addr

0001

9600

n.8.1

0001

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 1 Maximum conguration value: 247.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

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Instruction Manual

DHC-96 Aac

5�2�2�- BAUD RATE

In this screen, the baud rate of RS-485 communications is selected.

bAUd 9600

Use the ,key to browse the different options: 2400, 9600 bps. 4800, 9600 bps. 9600, 9600 bps.

19.20, 19200 bps.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�2�3�- DATA FORMAT

This screen is used to congure the data format.

dAtA

Use the ,key to browse the different options:

n.8.1, no parity, 8 data bits, 1 stop bit o.8.1, odd parity, 8 data bits, 1 stop bit E.8.1, even parity, 8 data bits, 1 stop bit

n.8.1

n.8.2, no parity, 8 data bits, 2 stop bit

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�2�4�- SAVE CONFIGURATION

To save the conguration of the device, press the key, until the main screen of the input conguration menu is opened, Figure 10.

Press the key again to show the validation screen.

Instruction Manual

21

DHC-96 Aac

SAuE

Use the ,key to browse the different options: no, exit the conguration without saving the changed values. YES, save the changed conguration values.

Press the key to validate the data and exit the conguration menu.

5.3.- ANALOG OUTPUT

Figure 14, shows the main screen of the analog output menu.

no

A0-1

Figure 14: Analog output menu, main screen�

Press the key to open the conguration menu.

A0-1

-

nodE

ds

FS

Figure 15:Analog output menu�

5�3�1�- TYPE OF OUTPUT

In this screen the output type of the analog output is congured

4-20

0.000

5.000

22

-

nodE 4-20

Instruction Manual

DHC-96 Aac

Use the and keys at the same time to congure the value.

Use the ,key to browse the different options:

4-20, Current output 4 ... 20 mA 0-20, Current output 0 ... 20 mA

12.20, Current output 4 ...12 ... 20 mA

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�3�2�- READING FOR THE START OF THE ANALOG OUTPUT

In this screen, the reading value from which the analog output is started is congured.

ds

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0.000 Maximum conguration value: 0.5 x Secondary current.

Note: FS (End of the analog output) - DS (Start of the analog output) ≥ 500

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�3�3�- READING FOR THE END OF THE ANALOG OUTPUT

In this screen, the reading value from which the analog output ends is congured.

0.000

FS 5.000

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0.5 x Secondary current. Maximum conguration value: 1.2 x Secondary current.

Note: FS (End of the analog output) - DS (Start of the analog output) ≥ 500

Instruction Manual

23

DHC-96 Aac

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�3�4�- SAVE CONFIGURATION

To save the conguration of the device, press the key, until the main screen of the input conguration menu is opened, Figure 10.

Press the key again to show the validation screen.

SAuE

Use the ,key to browse the different options: no, exit the conguration without saving the changed values. YES, save the changed conguration values.

Press the key to validate the data and exit the conguration menu.

no

24

Instruction Manual

ñ-

DHC-96 Aac

5.4.- RELAY OUTPUT 1

Figure 16, shows the main screen of the conguration menu of relay output 1.

do-1

Figure 16: Conguration menu of relay output 1, main screen.

Press the key to open the setup menu.

do-1

ññnodE

ñ-

tinE

ñ-

itEn

dELy

uALE

oFF

0000

i--H

0010

000.0

HyS

Figure 17:Conguration menu of relay output 1.

5�4�1�- RELAY MODE

This screen is used to congure the operating mode of relay 1.

ñnodE

Use the key to browse the different options:

Instruction Manual

000.5

oFF

25

oFF, relay output 1 is disabled.

ñ-

-

rEn, remote control output. ALr, alarm output.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�4�2�- RELAY PULSE DURATION

The alarm relay can behave in 2 different ways:

1�- The relay is activated when the alarm is triggered and is deactivated when the alarm is deactivated.

2�- The relay is activated when the alarm is triggered and is deactivated after a programmed period of time, even though the alarm condition has not been cancelled.

DHC-96 Aac

This screen is used to congure the programmed time, i.e., the relay pulse duration. To make the relay operate in mode no� 1, program the value to 0.

ñ-

tinE

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0 x 0.1 s Maximum conguration value: 9999 x 0.1 s

Example: Use program 0050 to congure a value of 5 s.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

0000

26

5�4�3�- ALARM PARAMETER

This screen is used to congure the parameter that will be used to activate the alarm.

itEn

Use the key to browse the different options: F--H, Active alarm when the frequency is higher than the alarm value.

i--H

Instruction Manual

DHC-96 Aac

i--H, Active alarm when the current is higher than the alarm value. F--L, Active alarm when the frequency is less than the alarm value. i--L, Active alarm when the current is less than the alarm value. di1H, Active alarm when digital input 1 is connected.

di2H,Active alarm when digital input 2 is connected.

di1L, Active alarm when digital input 1 is disconnected.

di2L,Active alarm when digital input 2 is disconnected.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�4�4�- CONNECTION DELAY

This screen is used to congure the alarm connection delay.

dELy

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0 x 0.1 s Maximum conguration value: 9999 x 0.1 s

Example: Use program 0050 to congure a value of 5 s.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�4�5�- ALARM VALUE

The value after which the alarm will be activated is congured on this screen.

0010

uALE

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0 Maximum conguration value: 9999

Instruction Manual

000.0

27

DHC-96 Aac

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�4�6�- HYSTERESIS

This screen is used to congure the hysteresis value, i.e., the difference between the alarm connection and disconnection value.

HyS

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0 Maximum conguration value: 9999

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�4�7�- SAVE CONFIGURATION

To save the conguration of the device, press the key until the main screen of the relay output 1 conguration menu is opened, Figure 16.

000.5

Press the key again to show the validation screen.

SAuE

Use the key to browse the different options:

no,exit the conguration without saving the changed values. YES, save the changed conguration values.

Press the key to validate the data and exit the conguration menu.

no

28

Instruction Manual

SEt

DHC-96 Aac

5.5.- RELAY OUTPUT 2

Figure 18, shows the main screen of the conguration menu of relay output 2.

do-2

Figure 18:Conguration menu of relay output 2, main screen.

The conguration is the same as for alarm relay 1, see “5.4.- RELAY OUTPUT 1”.

5.6.- CONFIGURATION OF THE DISPLAY

Figure 19, shows the main screen of the conguration menu of the display.

Figure 19: Conguration menu of the display, main screen.

Press the key to open the conguration menu.

SEt

CodE

Alr

Figure 20:Conguration menu of the display.

0001

L3LiGH

120.0

5�6�1�- PASSWORD OFF ACCESS

This screen is used to congure the value of the password used to access the conguration menu in the programming mode.

0000

Instruction Manual

CodE

29

DHC-96 Aac

Use the , key to modify the value of the ashing digit

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 0 Maximum conguration value: 9999

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�6�2�- BRIGHTNESS OF THE DISPLAY

The brightness of the display is congured on this screen.

LiGH

Use the , key to browse the different options: the display has 5 brightness levels, from L1 to L5.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

5�6�3�- LIGHT ALARM

If the current value measured by the device is higher than a % of the nominal value, the device can make the digits on the display start ashing, in the form of a light alarm.

Alr

L3

120.0

30

Use the , key to modify the value of the ashing digit.

When the desired value is shown on the screen, press the key to skip the digit.

Minimum conguration value: 30.0% Maximum conguration value: 120.0%

Note: If the a value of 0 is programmed, the light alarm will be deactivated.

To validate the data, press the key.

Use the and keys to browse the conguration screens of the menu.

Instruction Manual

DHC-96 Aac

5�6�4�- SAVE CONFIGURATION

To save the conguration of the device, press the key until the main screen of the conguration menu of the display is opened, Figure 19.

Press the key again to show the validation screen.

SAuE

Use the ,key to browse the different options: no, exit the conguration without saving the changed values. YES, save the changed conguration values.

Press the key to validate the data and exit the conguration menu.

5.7.- SOFTWARE VERSION

The software version of the device is shown in the display mode.

uEr

no

3014

Instruction Manual

31

DHC-96 Aac

6�- RS-485 COMMUNICATIONS

The DHC-96 devices have one RS-485 communications port,with communications protocols: MODBUS RTU ® .

6.1.- CONNECTIONS

The RS-485 cable must be wired with twisted pair cable with mesh shield, with a maximum distance between the DHC-96 and the master device of 1200 metres. A maximum of 32 DHC-96 devices can be connected to this bus.

Use an intelligent RS-232 to RS-485 network protocol converter to establish the communications with the master device.

PC

RS-232 / USB / Ethernet / Profibus ...

RS-232 USB Ethernet Profibus ...

RS-485

B(-) A(+)

72 58 28 29 31 32 1615

70 5971

B A

RS-485

72 58 28 29 31 32 1615

70 5971

B A

RS-485

32

1 2

11

14

1 2

11

14

Figure 21: RS-485 Connection diagram�

Note: Default values of the RS-485 communication : 19200 bps, No parity, 8 data bits and 1 stop bit.

Instruction Manual

DHC-96 Aac

6.2.- MODBUS PROTOCOL

In the Modbus protocol, the DHC-96 device uses the RTU (Remote Terminal Unit) mode. The Modbus functions implemented in the device are as follows:

Function 0x01: Reading a relay. Function 0x02: Reading input status. Function 0x03 and 0x04: Reading integer registers. Function 0x05: Writing a relay. Function 0x0F: Writing multiples relays Function 0x10: Writing multiples registers.

6�2�1� READING EXAMPLE : FUNCTION 0x01�

Question: Status of output relays

Address Function

01 01 0000 0002 BDCB

Initial

Register

No� of

Registers

CRC

Address: 01, Peripheral number: 1 in decimal. Function: 01, Read function. Initial Register: 0000, on which the reading will start.

No� of Registers: 0002, number of registers read. CRC: BDCB, CRC Character.

Response:

Address Function

01 01 01 03 1189

No� of Bytes

Register

No� 1

CRC

Address: 01, Responding peripheral number: 1 in decimal. Function: 01, Read function. No� of bytes: 01, No. of bytes received. Registre: 03, in binary it is: 0000 0011, output relays 1 and 2 closed. CRC:1189, CRC.Character.

6�2�2� EXAMPLE OF OPERATION OF THE REMOTE CONTROL: FUNCTION 0X05�

Question: Activate the output of relay 1, programmed to work in remote control mode.

Address Function

01 05 0000 FF00 8C3A

Initial

Register

Relay action CRC

Address: 01, Peripheral number: 1 in decimal. Function: 05, Writing a relay

Initial Register: 0000, relay 1 address.

Relay action: FF00, We indicate that we want to close the relay.

CRC: 8C3A, CRC.Character.

Instruction Manual

33

Response:

Address Function

01 05 0000 FF00 8C3A

Initial

Register

Relay action CRC

6.3.- MODBUS COMMANDS

6�3�1�- MEASUREMENT VARIABLES AND DEVICE STATUS

All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x03 and 0x04.

Table 7: Modbus memory map (Table 1)

Parameter Format Address Units

Current oat 12 A

Current int 10C 0.001 A

Frequency oat 2C Hz

Frequency int 120 0.01 Hz

DHC-96 Aac

Table 8: Modbus memory map (Table 2)

Parameter Format Address Value

Status of output relays bit [0] - bit [2] bit [32] 100 - 101

Status of digital inputs bit [0] - bit [2] bit [32] 102 - 103

Communications ID int 104 504

6�3�2�- OUTPUT RELAYS

All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x01, 0x05 and 0x0F�

Table 9: Modbus memory map (Table 3)

Parameter Format Address Value

Output relay 1 bit 0000 0: open, 1: closed

Output relay 2 bit 0000 0: open, 1: closed

6�3�3�- DIGITAL INPUTS

0: open

1: closed

0: open

1: closed

34

All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x02�

Table 10: Modbus memory map (Table 4)

Parameter Format Address Value

Digital input 1 bit 0000 0: open, 1: closed

Digital input 2 bit 0000 0: open, 1: closed

Instruction Manual

DHC-96 Aac

6�3�4�- REMOTE CONTROL OUTPUT (Relay output)

All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x05 and 0x0F�

Table 11: Modbus memory map (Table 5)

Parameter Format Address Value

Remote control, Output relay 1 bit 0000 0: open, 1: closed

Remote control, Output relay 2 bit 0001 0: open, 1: closed

6�3�5�- DEVICE CONFIGURATION VARIABLES

All the addresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x10�

6.3.5.1. Conguration of the input

Table 12:Modbus memory map : Conguration of the input

Conguration of the input

Variable Format Address Valid data margin

Primary current int 809 1 ... 9999

Decimal point of the primary current int 80A

Units of the primary current int 806 0: A - 1: kA

0: xxxx - 1: xxx.x -

2: xx.xx - 3: x.xxx

6�3�5�2� RS-485 communications

Table 13:Modbus memory map : RS-485 communications

RS-485 communications

Variable Format Address Valid data margin

Modbus address int 802 1 ... 247

Baud rate int 803

Data format int 804

0: n,8,1 : no parity, 8 data bits, 1 stop bit 1: o,8,1 : odd parity, 8 data bits, 1 stop bit 2: e,8,1 : even parity, 8 data bits, 1 stop bit 3: n,8,2 : no parity, 8 data bits, 2 stop bit

0: 2400 bps - 1: 4800 bps - 2: 9600 bps - 3: 19200 bps

6�3�5�3� Analog output

Table 14:Modbus memory map : Analog output

Analog output

Variable Format Address Valid data margin

Type of output int 814

Reading for the end of the analog output (fs)

Reading for the start of the analog output (ds)

Instruction Manual

int 815 0.5 x SC

int 816 0 ≤ ds ≤ 0.5 x SC

1: Current output

9: Frequency output

(1)

≤ fs ≤ 1.2 x SC

(1)

35

Table 14 (Continuation): Modbus memory map : Analog output

Analog output

Variable Format Address Valid data margin

Type of output int 817

(1)

SC: Secondary current.

6�3�5�4� Relays outputs

Table 15:Modbus memory map : Relay outputs�

Relay outputs

Variable Format Address Valid data margin

Relay 1 mode int 820

Relay 2 mode int 826

Relay 1 pulse duration int 821

Relay 2 pulse duration int 827

Alarm parameter of relay 1 int 822 3: Upper current alarm

11: Upper frequency alarm 12: Alarm when Digital 1 input is connected 13: Alarm when Digital 2 input is connected

Alarm parameter of relay 2 int 828

Relay 1 connection delay int 823

Relay 2 connection delay int 829

Relay 1 alarm value int 824

Relay 2 alarm value int 82A

Relay 1 hysteresis int 825

Relay 2 hysteresis int 82B

19: Lower current alarm 27: Lower frequency alarm 28: Alarm when Digital 1 input is disconnected 29: Alarm when Digital 2 input is disconnected

0: output is disabled.

2: remote control output.

DHC-96 Aac

0: 4 ... 20 mA

1: 0 ... 20 mA

2: 4... 12 ... 20 mA

1: alarm output

0 ... 9999 ( x 0.1 s)

0 ... 9999

36

6.3.5.5. Conguration of the display

Table 16:Modbus memory map : Conguration of the display

Conguration of the display

Variable Format Address Valid data margin

Rotation of the display screen int 800

Brightness of the display int 801 0 ... 4

Light alarm int 805 300 ... 1200 (x 0.1%)

0: the screens don’t rotate

1 ... 60 s

Instruction Manual

DHC-96 Aac

7�- TECHNICAL FEATURES

AC Power supply

(2)

Rated voltage 80 ... 270 V ~

Frequency 50 / 60 Hz

Consumption 2.6 ... 4.9 VA

Installation category CAT III 300 V

DC Power supply

(2)

Rated voltage 80 ... 270 V 18 ... 36 V

Consumption 1.5 ... 1.6 W 1.2 W

Installation category CAT III 300 V

(2)

Depending on model :

Model

M22358

M223580030000

80 �� 270 V ~ 80 �� 270 V 18 �� 36 V

 

- -

Power supply

-



Current measurement circuit

Nominal current (In) 1 A ~ / 5 A ~

Frequency measurement margin 45 ... 65 Hz

Overload 1.2 In continuous, 10 In Instantaneous (5s)

Consumption < 0.2 VA

Impedance < 20 mΩ

Installation category CAT III 300V

Measurement accuracy

Current measurement 0.5%

Relays outputs

Quantity 2

Contact capacity (resistive) CA: 5A / 250 V~ , CC: 5A / 30 V

Max� voltage open contacts 277 V~

Maximum current 5 A ~

Maximum switching power 1385 VA

Electrical life (250 V~ / 5A) 1x10

Mechanical life 5x10

5

6

Digital inputs

Quantity 2

Type Potential free contact

Insulation 2000 V~

Maximum short-circuit current 3.3 mA

Maximum voltage in open circuit 17 V

Analog output

Quantity 1

Maximum internal voltage 17 V

Linearity 0.5 %

Nominal output range 0-20 mA, 4-20 mA, 4-12-20 mA (Programmable)

Maximum load resistor 350 Ω

Instruction Manual

37

RS-485 communications

Communications protocol Modbus RTU

Baud rate 2400 - 4800 - 9600 - 19200 bps

Data bits 8

Stop bits 1 - 2

Parity without, even, odd

User interface

Display LED 5 digits

Keyboard 4 keys

Environmental features

Operating temperature -40ºC ... +70ºC

Storage temperature -40ºC ... +85ºC

Relative humidity ≤ 95%

Maximum altitude 2000 m

Protection degree

Pollution degree

Front : IP54, Rear case: IP20

2

DHC-96 Aac

Mechanical features

Power supply and Measurement

Terminals : 1, 2, 4, 5

≤ 1 mm

2

≤ 0.5 Nm PZ1

Analog output, Relay outputs, RS-485, Digital inputs

Terminals : 15, 16, 28, 29, 31, 32, 58, 59, 70, 71, 72

≤ 2.5 mm

2

0.5 ... 0.6 Nm PZ0

Dimensions Figure 22 (mm)

Weight 236 g.

Surround pc + abs

Standards

Electromagnetic compatibility (EMC) -- Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test�

IEC 61000-4-2

Electromagnetic compatibility (EMC)- Part 4-3: Testing and measurement

techniques- Radiated, radio-frequency, electromagnetic eld immunity

IEC 61000-4-3

test

Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test

Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test

IEC 61000-4-4

IEC 61000-4-5

Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-fre-

IEC 61000-4-6

quency elds

Electromagnetic compatibility (EMC) -- Part 4-8: Testing and measurement

techniques - Power frequency magnetic eld immunity test

IEC 61000-4-8

Electromagnetic compatibility (EMC) -- Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations

IEC 61000-4-11

immunity tests

Safety requirements for electrical equipment for measurement, control and laboratory use -- Part 1: General requirements

IEC 61010-1

38

Instruction Manual

DHC-96 Aac

49

96

8 68.5

Figure 22: Dimensions of the DHC-96�

10(max)

81.2

Instruction Manual

39

DHC-96 Aac

8�- MAINTENANCE AND TECHNICAL SERVICE

In the case of any query in relation to unit operation or malfunction, please contact the

CIRCUTOR, SA Technical Support Service.

Technical Assistance Service

Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona) Tel: 902 449 459 ( España) / +34 937 452 919 (outside of Spain) email: sat@circutor.es

9�- GUARANTEE

CIRCUTOR guarantees its products against any manufacturing defect for two years after the

delivery of the units.

CIRCUTOR will repair or replace any defective factory product returned during the guarantee period.

• No returns will be accepted and no unit will be repaired or replaced if it is not accompanied by a report indicating the defect detected or the reason for the return.

•The guarantee will be void if the units has been improperly used or the storage, installation and maintenance instructions listed in this manual have not been followed. “Improper usage” is de ned as any operating or storage condition contrary to the national electrical code or that surpasses the limits indicated in the technical and environmental features of this manual.

• CIRCUTOR accepts no liability due to the possible damage to the unit or other parts of the installation, nor will it cover any possible sanctions derived from a possible failure, improper installation or “improper usage” of the unit. Consequently, this guarantee does not apply to failures occurring in the following cases:

- Overvoltages and/or electrical disturbances in the supply;

- Water, if the product does not have the appropriate IP classi cation;

- Poor ventilation and/or excessive temperatures;

- Improper installation and/or lack of maintenance;

- Buyer repairs or modi cations without the manufacturer’s authorisation.

40

Instruction Manual

DHC-96 Aac

10�- CE CERTIFICATE

Instruction Manual

41

DHC-96 Aac

42

Instruction Manual

DHC-96 Aac

Instruction Manual

43

ANNEX A�- CONFIGURATION MENU

5.000

>3s

rEAd

ProG

CodE

DHC-96 Aac

0000

inPt

--

Conn

Ao-1

in i

Unt. i

in 2

Unt.2

Addr

6Aud

dAtA

-

nodE

dS

FS

000.0

oFF

5.000

oFF

0001

2400

n.8.1

4-20

0.000

1.000

Primary current

on

1.000

Units o the secondary current

Modbus address

4800

o.8.1

Units of the primary current

Secondary current

9600

E.8.1

0-20 12.20

Reading for the start of the analog output

Reading for the end of the analog output

19.20

n.8.2

Type of output

Baud rate

Data format

do-1

do-2

SEt

-

nodE

-

tinE

itEn

dELy

uALE

Hys

CodE

LiGH

Alr

-

oFF

0000

i--H

0010

000.0

000.5

0001

L1

120.0

-

rEn ALr

Relay pulse duration

F--H

diiH

F--L di1L di2L

Connection delay

Alarm value

Hysteresis

Password o access

L5

Light alarm

Brightness of the display

Relay mode

di2H

Alarm parameter

1--L

44

uEr

3014

Figure 23:Conguration menu DHC-96 Aac

Software version

Instruction Manual

DHC-96 Aac

Instruction Manual

45

CIRCUTOR, SA

Vial Sant Jordi, s/n 08232 -Viladecavalls (Barcelona) Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14 www.circutor.com central@circutor.com

Circutor DHC-96 Aac Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY PRECAUTIONS

DISCLAIMER

CONTENTS

REVISION LOG

SYMBOLS

1�- VERIFICATION UPON RECEPTION

2�- PRODUCT DESCRIPTION

3�- DEVICE INSTALLATION

3.1.- PRIOR RECOMMENDATIONS

3.2.- INSTALLATION

3.3.- DEVICE TERMINALS

3.4.- CONNECTION DIAGRAM

4�- OPERATION

4.1.- DISPLAY

4.2.- KEYBOARD FUNCTIONS

4.3.- RELAY OUTPUTS

4.4.- ANALOG OUTPUT

4.5.- ENTRADAS DIGITALES

4.6.- DISPLAY

5�- CONFIGURATION

5�1�1�- PRIMARY CURRENT

5�1�2�- UNITS OF THE PRIMARY CURRENT

5�1�3�- SECONDARY CURRENT

5�1�4�- UNITS OF THE SECONDARY CURRENT

5�1�5�- SAVE CONFIGURATION

5.2.- RS-485 COMMUNICATIONS

5�2�1�- MODBUS ADDRESS

5�2�2�- BAUD RATE

5�2�3�- DATA FORMAT

5�2�4�- SAVE CONFIGURATION

5.3.- ANALOG OUTPUT

5�3�1�- TYPE OF OUTPUT

5�3�2�- READING FOR THE START OF THE ANALOG OUTPUT

5�3�3�- READING FOR THE END OF THE ANALOG OUTPUT

5�3�4�- SAVE CONFIGURATION

5�4�1�- RELAY MODE

5�4�2�- RELAY PULSE DURATION

5�4�3�- ALARM PARAMETER

5�4�4�- CONNECTION DELAY

5�4�5�- ALARM VALUE

5�4�6�- HYSTERESIS

5�4�7�- SAVE CONFIGURATION

5�6�1�- PASSWORD OFF ACCESS

5�6�2�- BRIGHTNESS OF THE DISPLAY

5�6�3�- LIGHT ALARM

5�6�4�- SAVE CONFIGURATION

5.7.- SOFTWARE VERSION

6�- RS-485 COMMUNICATIONS

6.1.- CONNECTIONS

6.3.- MODBUS COMMANDS

6�3�1�- MEASUREMENT VARIABLES AND DEVICE STATUS

6�3�2�- OUTPUT RELAYS

6�3�3�- DIGITAL INPUTS

6�3�4�- REMOTE CONTROL OUTPUT (Relay output)

6�3�5�- DEVICE CONFIGURATION VARIABLES

7�- TECHNICAL FEATURES

8�- MAINTENANCE AND TECHNICAL SERVICE

9�- GUARANTEE

10�- CE CERTIFICATE