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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

RS-485

network protocol converter to establish the

communications with the master device.

70 59

28 29 31 32

RS-485

70 59

28 29 31 32

B A

RS-485

B(-)

A(+)

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

RS-485

RS-232

USB

Ethernet

Profibus

...

Figure 21: RS-485 Connection diagram�

Note:

Default values of the RS-485 communication :

19200 bps

No parity

8 data bits

and

stop bit.

DHC-96 Aac

Instruction Manual

Содержание DHC-96 Aac

Страница 1: ...INSTRUCTION MANUAL M226B01 03 19A AC Ammeter DHC 96 Aac...

Страница 2: ...2 DHC 96 Aac Instruction Manual...

Страница 3: ...orrect 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 de...

Страница 4: ...21 5 2 4 SAVE CONFIGURATION 21 5 3 ANALOG OUTPUT 22 5 3 1 TYPE OF OUTPUT 22 5 3 2 READING FOR THE START OF THE ANALOG OUTPUT 23 5 3 3 READING FOR THE END OF THE ANALOG OUTPUT 23 5 3 4 SAVE CONFIGURAT...

Страница 5: ...TE CONTROL OUTPUT Relay output 35 6 3 5 DEVICE CONFIGURATION VARIABLES 35 7 TECHNICAL FEATURES 37 8 MAINTENANCE AND TECHNICAL SERVICE 40 9 GUARANTEE 40 10 CE CERTIFICATE 41 ANNEX A CONFIGURATION MENU...

Страница 6: ...tive purposes only and may differ from the actual device SYMBOLS Table 2 Symbols Symbol Description In compliance with the relevant European directive Device covered by European directive 2012 19 EC A...

Страница 7: ...act 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 ha...

Страница 8: ...rfect 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 specific current values The manufa...

Страница 9: ...install it take the following steps 1 Make a cut in the panel according to the dimensions in Figure 1 91 44 Figure 1 Cut in the panel 2 Remove the device s fixing clips Figure 2 Clip de fijaci n Fixin...

Страница 10: ...RS 485 15 Analog output 70 Common digital input 16 Analog output 71 Digital input 1 28 Alarm output 1 relay Common 72 Digital input 2 29 Alarm output 1 relay NO 4 70 59 71 1 2 28 29 31 32 1 2 5 72 58...

Страница 11: ...elay output Analog output Entradas Digitales Salida Anal gica Figure 4 Current measurement DHC 96 Aac If the current being measured is higher than the nominal input current 5A a current transformer sh...

Страница 12: ...NCTIONS The DHC 96 Aac features 4 keys to display and configure the device Figure 5 Table 5 Keyboard functions Key Keystroke Previous screen In the configuration menu Scroll through the digits Next sc...

Страница 13: ...utput Entradas Digitales Salida Anal gica Figure 6 Relay outputs digital inputs and Analog output 4 4 ANALOG OUTPUT The device has an analog output terminals 15 and 16 of Figure 6 programmable through...

Страница 14: ...input is activated do 12 Status of the relay outputs 1 status of the relay output 1 flashes when the relay is activated 2 status of the relay output 2 flashes when the relay is activated If the curren...

Страница 15: ...input Relay output 1 Relay output 2 Configuration of the display Software version Communications Analog output 5 000 Conn Ao 1 Figure 7 Configuration menu of the DHC 96 Aac From any screen of the con...

Страница 16: ...mode Before accessing the configuration menu it is necessary to enter the access password CodE 0000 Figure 9 Access password Use the key to modify the value of the flashing digit When the desired valu...

Страница 17: ...guration menu inPt in i Unt i in 2 Unt 2 1 000 oFF 5 000 oFF Figure 11 Input configuration menu 5 1 1 PRIMARY CURRENT This screen is used to configure the value of the primary current in i 1 000 Use t...

Страница 18: ...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 configuration screens of the menu 5 1 3 SECONDARY CURRENT This scree...

Страница 19: ...the device press the key until the main screen of the input configuration menu is opened Figure 10 Press the key again to show the validation screen SAuE no Use the key to browse the different option...

Страница 20: ...dAtA n 8 1 Figure 13 RS 485 communications menu 5 2 1 MODBUS ADDRESS This screen is used to configure the modbus address of the device Addr 0001 Use the key to modify the value of the flashing digit...

Страница 21: ...ormat dAtA n 8 1 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 2 no parity 8 d...

Страница 22: ...nd exit the configuration menu 5 3 ANALOG OUTPUT Figure 14 shows the main screen of the analog output menu A0 1 Figure 14 Analog output menu main screen Press the key to open the configuration menu A0...

Страница 23: ...y to skip the digit Minimum configuration value 0 000 Maximum configuration 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...

Страница 24: ...until the main screen of the input configuration menu is opened Figure 10 Press the key again to show the validation screen SAuE no Use the key to browse the different options no exit the configurati...

Страница 25: ...y output 1 main screen Press the key to open the setup menu do 1 nodE tinE itEn dELy HyS uALE 000 0 0000 0010 oFF 000 5 i H Figure 17 Configuration menu of relay output 1 5 4 1 RELAY MODE This screen...

Страница 26: ...he programmed time i e the relay pulse duration To make the relay operate in mode no 1 program the value to 0 tinE 0000 Use the key to modify the value of the flashing digit When the desired value is...

Страница 27: ...to configure the alarm connection delay dELy 0010 Use the key to modify the value of the flashing digit When the desired value is shown on the screen press the key to skip the digit Minimum configurat...

Страница 28: ...value 0 Maximum configuration value 9999 To validate the data press the key Use the and keys to browse the configuration screens of the menu 5 4 7 SAVE CONFIGURATION To save the configuration of the d...

Страница 29: ...HE DISPLAY Figure 19 shows the main screen of the configuration menu of the display SEt Figure 19 Configuration menu of the display main screen Press the key to open the configuration menu SEt CodE Al...

Страница 30: ...te the data press the key Use the and keys to browse the configuration 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 devic...

Страница 31: ...in to show the validation screen SAuE no Use the key to browse the different options no exit the configuration without saving the changed values YES save the changed configuration values Press the key...

Страница 32: ...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 14 70 59 71 1 2 11 72 58 28 29 31 32 16 15...

Страница 33: ...on which the reading will start No of Registers 0002 number of registers read CRC BDCB CRC Character Response Address Function No of Bytes Register No 1 CRC 01 01 01 03 1189 Address 01 Responding peri...

Страница 34: ...t 32 100 101 0 open 1 closed Status of digital inputs bit 0 bit 2 bit 32 102 103 0 open 1 closed Communications ID int 104 504 6 3 2 OUTPUT RELAYS All the addresses of Modbus memory are in Hexadecimal...

Страница 35: ...e primary current int 80A 0 xxxx 1 xxx x 2 xx xx 3 x xxx Units of the primary current int 806 0 A 1 kA 6 3 5 2 RS 485 communications Table 13 Modbus memory map RS 485 communications RS 485 communicati...

Страница 36: ...al 1 input is connected 13 Alarm when Digital 2 input is connected 19 Lower current alarm 27 Lower frequency alarm 28 Alarm when Digital 1 input is disconnected 29 Alarm when Digital 2 input is discon...

Страница 37: ...taneous 5s Consumption 0 2 VA Impedance 20 m 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...

Страница 38: ...ility EMC Part 4 3 Testing and measurement techniques Radiated radio frequency electromagnetic field immunity test IEC 61000 4 3 Electromagnetic compatibility EMC Part 4 4 Testing and measurement tech...

Страница 39: ...49 8 68 5 81 2 96 10 max Figure 22 Dimensions of the DHC 96 39 Instruction Manual DHC 96 Aac...

Страница 40: ...e 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...

Страница 41: ...10 CE CERTIFICATE 41 Instruction Manual DHC 96 Aac...

Страница 42: ...42 DHC 96 Aac Instruction Manual...

Страница 43: ...43 Instruction Manual DHC 96 Aac...

Страница 44: ...Modbus address Data format Baud rate Type of output Reading for the start of the analog output Reading for the end of the analog output uEr 3014 5 000 1 000 oFF oFF i H on oFF 120 0 0001 rEn ALr F H 2...

Страница 45: ...45 Instruction Manual DHC 96 Aac...

Страница 46: ...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...

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