Module RS-485 Modbus RTU đo dòng điện AC 5 kênh ICP DAS LC-305/DIN
Features
- 5-channel AC Load Current Measurement
- AC Current Input Ranges from 0 to 5 A
- Load Current Measurement Accuracy 3%
- Dual Watchdog
- Support DCON and Modbus RTU Protocol
- Wide Operating Temperature Range: -25 to +75°C
- Tiny Form Factor with Easy Screw Mounting
Introduction
The LC-305 is a 5-channel AC Load Current Measurement Module. LC-305 is fully RoHS-compliant and has qualification for 4 kV ESD protection and 2000 VDC intra-module isolation is also provided. When required, communication with the LC-305 is programmable based on the Modbus RTU protocol, and an added benefit is that different addresses can be set via hardware configuration. The module can measure the load current of each lamp to verify if the lamp is normal or failed; check if the bulb begins to fade and needs to be replaced; and see if there is carbon-buildup depositing on the relay contacts which may makes the relay become sticky.
Applications
I/O Specifications
| AC Current Input | |
| Channels | 5 |
| Wiring | Single ended |
| Input Current | 0 to 5 A |
| Input Frequency | 50/60 Hz |
| Max. Load Current | 10 A/Module COM point Max. Single Load Current 5 A at 25°C |
| Accuracy | 3% of FSR |
| Data Update Rate | 1 Second |
System Specifications
| Communication | |
| Interface | RS-485 |
| Data Format | N,8,1/O,8,1/E,8,1/N,8,2 |
| Baud Rate | 1200 to 115200 bps |
| Protocol | Modbus RTU or DCON |
| Node Addresses | 96 to 127 |
| LED Indicators | |
| Power | 1 LED as Power Indicator |
| EMS Protection | |
| ESD (IEC 61000-4-2) | ±4 kV contact for each terminal |
| EFT (IEC 61000-4-4) | ±4 kV for power and communication |
| Power | |
| Reverse Polarity Protection | Yes |
| Powered from Terminal Block | +10 to +30 VDC |
| Consumption | 0.7 W Max. |
| Mechanical | |
| Dimensions (L x W x H) | 83 mm x 70 mm x 29 mm |
| Installation | Screw Mounting/DIN Rail mount |
| Environment | |
| Operating Temperature | -25 to +75°C |
| Storage Temperature | -30 to +80°C |
| Humidity | 10 to 95% RH, Non-condensing |
Ordering Information
| LC-305 CR | 5-channel AC Load Current Measurement Module (RoHS) |
| LC-305/DIN CR | 5-channel AC Load Current Measurement Module (DIN Rail mount) (RoHS) |
Accessories
| tM-7520U CR | RS-232 to RS-485 converter (RoHS) |
| tM-7561 CR | USB to RS-485 converter (RoHS) |
| I-7514U CR | 4-channel RS-485 Hub (RoHS) |
| TPD-280 CR | 2.8” Touch HMI device with RS-485 (RoHS) |