CIRCUTOR S�A�U� reserves the right to make modifications to the device or the unit specifications set out in this instruction manual without prior notice. CIRCUTOR S�A�U� on its web site, supplies its customers with the latest versions of the device specifi- cations and the most updated manuals.
CIRCUTOR's after-sales service. 2.- PRODUCT DESCRIPTION The DHC-96 Adc gamma is designed to measure and display the DC current. CIRCUTOR has 2 models, for different current ranges: DHC-96 mAdc with 3 programmable current scales: ±20 mA, 0...20 mA and 4...20 mA.
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DHC-96 mAdc, DHC-96 Adc List of models: DHC-96 mAdc Table 3:DHC-96 mAdc list of models� Power Supply Model 80 ��� 270 V ~ 80 ��� 270 V 18 �� 36 V M22368 M223680030000 DHC-96 Adc Table 4:DHC-96 Adc list of models�...
DHC-96 mAdc, DHC-96 Adc 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.
DHC-96 mAdc, DHC-96 Adc 3�2�- INSTALLATION Terminals, opening covers or removing elements can expose parts that are hazard- ous 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.
DHC-96 mAdc, DHC-96 Adc 3�4�- CONNECTION DIAGRAM Entradas Digitales Digital inputs Salida Analógica Analog output 70 59 28 29 31 32 RS-485 Salida de relés Relay output Alimentación Auxiliar Power Supply Figure 4: Current measurement DHC-96 Adc� Make sure that the positive and negative current terminals are as shown in the connection diagram.
DHC-96 mAdc, DHC-96 Adc 4.- OPERATION 4�1�- DISPLAY The device features a 5-digit LED display, which is used to display the measured parameters and to configure these parameters Display 00000 Keyboard Figure 5: Display DHC-96� 4�2�- KEYBOARD FUNCTIONS The DHC-96 Adc features 4 keys to display and configure the device, Figure 5 Table 6: Keyboard functions�...
DHC-96 mAdc, DHC-96 Adc 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...
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DHC-96 mAdc, DHC-96 Adc Table 7 (Continuation) : Display menu� Display menu Status of digital inputs: , status of the digital input 1: flashes when the input is activated , status of the digital input 2: flashes when the input is activated...
DHC-96 mAdc, DHC-96 Adc 5.- CONFIGURATION Press and hold the key for more than 3 seconds to enter the configuration menu of the device. The configuration of the device is organized in different menus, Figure 7 5.000 >3s rEAd ProG...
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DHC-96 mAdc, DHC-96 Adc rEAd , key to access the configuration menu in the display mode, i.e., On the screen, press the the configuration parameters cannot be modified. rEAd On the screen, press the keys to access the configuration menu in the program- ming mode, i.e., the configuration parameters can be modified.
DHC-96 mAdc, DHC-96 Adc 5�1�- CONFIGURATION OF THE INPUT , shows the main screen of the input configuration menu, from which the display value and Figure 10 measurement range are configured. inPt Figure 10: Input configuration menu, main screen� Press the key to open the configuration menu.
DHC-96 mAdc, DHC-96 Adc Configuration values Table 8:Configuration values: Display value� Display value Minimum value 1.000 Maximum value 9999 To validate the data, press the key. Use the keys to browse the configuration screens of the menu. 5�1�2�- UNITS OF THE DISPLAY VALUE This screen is used to configure the units of the display value.
DHC-96 mAdc, DHC-96 Adc Configuration values Table 10: Configuration values: Measurement range� Measurement range DHC-96 mAdc model For the current scale of 0 ... 20 mA. 0-20 For the current scale of 4 ... 20 mA. 4-20 Possible values For the current scale of ±...
DHC-96 mAdc, DHC-96 Adc Press the key to open the configuration menu. Conn Addr 0001 9600 bAUd 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...
DHC-96 mAdc, DHC-96 Adc 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. Configuration values Table 13: Configuration values: Baud rate� Baud rate Possible values...
DHC-96 mAdc, DHC-96 Adc Press the key again to show the validation screen. SAuE Use the ,key to browse the different options. Configuration values Table 15: Configuration values: Save configuration� Save configuration Exit the configuration without saving the changed values.
0.5 x A Note: In the DHC-96 mAdc model the variable A has a value of 2000, in the DHC-96 Adc model has a value of 5000 for the measurement range of 5.000 and 1000 for the measurement range of 1.000.
1.2 x A Note: In the DHC-96 mAdc model the variable A has a value of 2000, in the DHC-96 Adc model has a value of 5000 for the measurement range of 5.000 and 1000 for the measurement range of 1.000.
DHC-96 mAdc, DHC-96 Adc Press the key to validate the data and exit the configuration menu. 5�4�- RELAY OUTPUT 1 , shows the main screen of the configuration menu of relay output 1. Figure 16 do-1 Figure 16: Configuration menu of relay output 1, main screen�...
DHC-96 mAdc, DHC-96 Adc Use the key to browse the different options. Configuration values Table 20: Configuration values: Relay mode� Relay mode relay output 1 is disabled. Possible values remote control output. alarm output. To validate the data, press the key.
DHC-96 mAdc, DHC-96 Adc 5�4�3�- ALARM PARAMETER This screen is used to configure the parameter that will be used to activate the alarm. ñ- itEn i--H Use the key to browse the different options. Configuration values Table 22: Configuration values: Alarm parameter�...
DHC-96 mAdc, DHC-96 Adc 5�4�5�- ALARM VALUE The value after which the alarm will be activated is configured on this screen. 0.000 uALE 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.
DHC-96 mAdc, DHC-96 Adc 5�4�7�- SAVE CONFIGURATION To save the configuration of the device, press the key until the main screen of the relay output 1 configuration menu is opened, Figure 16 Press the key again to show the validation screen.
DHC-96 mAdc, DHC-96 Adc CodE 0001 LiGH 120.0 Figure 20:Configuration menu of the display� 5�6�1�- PASSWORD OFF ACCESS This screen is used to configure the value of the password used to access the configuration menu in the programming mode. 0000...
DHC-96 mAdc, DHC-96 Adc Configuration values Table 28:Configuration values: Brightness of the display� Brightness of the display Minimum value Maximum value To validate the data, press the key. Use the keys to browse the configuration screens of the menu.
DHC-96 mAdc, DHC-96 Adc Configuration values Table 30: Configuration values: Save configuration� Save configuration Exit the configuration without saving the changed values. Possible values Save the changed configuration values. Press the key to validate the data and exit the configuration menu.
DHC-96 mAdc, DHC-96 Adc 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.
DHC-96 mAdc, DHC-96 Adc 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.
DHC-96 mAdc, DHC-96 Adc Response: Initial Address Function Relay action Register 0000 FF00 8C3A 6�3�- MODBUS COMMANDS All the addresses of Modbus memory are in Hexadecimal. 6�3�1�- MEASUREMENT VARIABLES AND DEVICE STATUS For these variables is implemented the Function 0x03 and 0x04.
DHC-96 mAdc, DHC-96 Adc 6�3�3�- DIGITAL INPUTS For these variables is implemented the Function 0x02� Table 35: Modbus memory map (Table 4) Parameter Format Address Digital input 0000 The format of the parameter is shown in Table 36: Table 36:Format of the variables : Digital inputs�...
2: 4 ...12 ... 20 mA In the DHC-96 mAdc model the variable A has a value of 2000, in the DHC-96 Adc model has a value of 5000 for the measurement range of 5.000 and 1000 for the measurement range of 1.000.
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00.00 ... 99.99 Relay 2 hysteresis 0�000 ��� 9�999 For the model DHC-96 Adc 00�00 ��� 99�99 For the model DHC-96 mAdc 6�3�5�5� Configuration of the display Table 44:Modbus memory map : Configuration of the display Configuration of the display...
DHC-96 mAdc, DHC-96 Adc 7.- TECHNICAL FEATURES AC Power supply Rated voltage 80 ... 270 V ~ Frequency 50 / 60 Hz Consumption 2.7 ... 5 VA Installation category CAT III 300 V DC Power supply Rated voltage 80 ... 270 V 18 ...
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DHC-96 mAdc, DHC-96 Adc (Continuation) Digital inputs Maximum voltage in open circuit 17 V Analog output Quantity 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...
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DHC-96 mAdc, DHC-96 Adc ) Standards Continuation Electromagnetic compatibility (EMC) -- Part 4-8: Testing and measurement te- IEC 61000-4-8 chniques - Power frequency magnetic field immunity test Electromagnetic compatibility (EMC) -- Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity...
DHC-96 mAdc, DHC-96 Adc 8.- MAINTENANCE AND TECHNICAL SERVICE In the case of any query in relation to device operation or malfunction, please contact the CIRCUTOR S�A�U� Technical Support Service. Technical Assistance Service Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona) Tel: 902 449 459 (Spain) / +34 937 452 919 (outside of Spain) email: sat@circutor.com...
Alarm parameter di1L di2L dELy 0010 Connection delay Alarm value uALE 00.00 Hysteresis 00.05 CodE Password o access 0001 Brightness of the LiGH display 120.0 Light alarm Software version 3014 Figure 23:Configuration menu DHC-96 mAdc Instruction Manual...
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DHC-96 mAdc, DHC-96 Adc 5.000 >3s 0000 rEAd ProG CodE inPt 000.0 Display value Units of the display Unt. i value Measurement range in 2 1.000 5.000 Conn Addr 0001 Modbus address 19.20 Baud rate 6Aud 4800 9600 2400 Data format dAtA o.8.1...
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