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AC CURRENT SENSOR & OVER-CURRENT PROTECTOR
User Guide for SRCN-C711-2
Product Description
This module is used to measure and monitor current consumption by utilizing current transformer technology. The module will collect the voltage signal,
convert and process it into a current value and output the current value with RS485 Modbus RTU protocol. If the current exceeds a preset value, the
relay on the module is activated. Uses include building automation and facility management systems where acquiring information on energy usage can
lead to increased efficiency. They can also detect equipment issues and help prevent damage by detecting over-current and/or short-circuit conditions.
Features
Multi-function menu
Digital display
CT technology
RS485 and relay outputs
Low power consumption
35mm DIN rail or panel mountable
Applications
Building and facilities management
HVAC
Electric fans
Electric pumps
Devices requiring over-current & short-circuit protection
Thank you for choosing L-com product. To ensure safe, accurate performance and product longevity, please take a moment to familiarize yourself
with this manual before powering the device. Please keep it handy for future reference. In case of any questions regarding the installation or use of
product, please call us at 800.341.5266.
Reach out to us at customerservice@l-com.com and visit our website at www.l-com.com
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Summary of Contents for Infinite L-com SRCN-C711-2
- Page 1 AC CURRENT SENSOR & OVER-CURRENT PROTECTOR User Guide for SRCN-C711-2 Product Description This module is used to measure and monitor current consumption by utilizing current transformer technology. The module will collect the voltage signal, convert and process it into a current value and output the current value with RS485 Modbus RTU protocol. If the current exceeds a preset value, the relay on the module is activated.
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Page 2: Technical Parameters
Technical Parameters 10 28 VDC Working voltage Power consumption < 0.8 W 0 70 °C Working temperature 10% 90% (No condensation) Working humidity 0 10 A Detection range Function menu Select required functions via keys on module MODBUS RTU ... -
Page 3: Mounting Diagram
Mounting Diagram 35mm DIN rail mounting: Mount the sensor module onto the DIN rail (dark black) as shown in the figure. Board Mount Mount the PCB to the enclosure with screws. Mounting hole diameter is 3mm. Notes The module has the function of anti-reverse connection. But it is still necessary to pay attention to the voltage polarity when the power is turned ON to avoid damage to the module. -
Page 4: Function Menu Description
Function Menu Description Press and hold the SET button for 3 seconds and release it to enter the function menu interface (F01-F09). Press the + and - buttons to switch in between menus. Select the menu and click the SET button to enter the setting state. The display starts flashing. Set the data with + and - keys, long press the SET key to automatically save the data and exit. -
Page 5: Register Description
Register Description Note: For detailed functions of the below registers, please refer to the function menu description. Register Illustrate 0x00 Current data register, resolution: 1mA 0x01 Relay status register, display the status of relay operation 0x64 ID registers, range: 1 ~ 247 Baud rate 0x65 1200... - Page 6 Data Write Format Function Code Register Address Write Data CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes 1-247 (Decimal) — — Low in front When the data returned by the module is consistent with the data sent, the relay is unlocked. Tips: The ID range in the command is in decimal format, please convert it to Hex (hexadecimal) format when using it.