Product Short Description
Product Introduction
This is a dedicated industrial speed monitoring module developed for rotating machinery protection systems. It is deployed in industrial control cabinets to collect pulse signals from speed sensors, calculate real-time rotational speed, execute over-speed, under-speed and stall protection logic, and transmit data and alarm signals to upper industrial control systems. It operates stably in continuous 24/7 industrial working conditions.
Description
- Operating Voltage: 120/240 VAC universal industrial power supply
- Operating Temperature: 0 °C ~ +65 °C
- Storage Temperature: -40 °C ~ +85 °C
- Relative Humidity: 5% ~ 95% (non-condensing)
- Input Signal Type: Square wave pulse signal from magnetic pickup sensors
- Frequency Input Range: 0.1 Hz ~ 10 kHz
- Output Interface: Relay dry contact output + analog signal output
- Mounting Form: Standard DIN rail mounting
- Power Consumption: ≤ 8 VA
- Real-time acquisition and calculation of rotational speed for rotating equipment
- Configurable over-speed, under-speed and zero-speed alarm and protection logic
- On-board parameter setting via local dial switches and digital display
- Isolated signal input to eliminate external electromagnetic interference
- Relay contact output for interlock and emergency trip control
- Built-in circuit self-diagnosis and fault status indication
- Compatibility with standard magnetic speed sensors industry-wide
- Speed Measurement Accuracy: ±0.05% full scale
- Signal Response Time: ≤ 5 ms
- Relay Contact Rating: 250 VAC, 5 A resistive load
- Electromagnetic Compatibility: Compliant with IEC 61000-6-2 industrial EMC standards
- Mean Time Between Failures (MTBF): ≥ 480,000 hours
- Continuous Operation Cycle: 24 hours non-stop operation
- Main Enclosure: Flame-retardant ABS engineering plastic
- Main Circuit Board: FR-4 high temperature resistant printed circuit board
- Terminal Blocks: Copper alloy with tin-plated anti-oxidation layer
- Internal Electronic Components: Industrial-grade operational amplifiers, microprocessors and signal isolation chips
- Fasteners: Stainless steel anti-rust screws and fixing clips
- Compact DIN rail modular structure, suitable for standard industrial control cabinets
- Front panel equipped with LED status indicators for power, run, alarm and fault
- Integrated terminal row for centralized wiring of input, output and power lines
- Fully isolated internal circuit layout to prevent crosstalk between signals
- Integrated locking structure for firm fixation on DIN rail, anti-loosening under vibration
- Layered internal structure for effective heat dissipation
The module receives pulse signals generated by magnetic speed sensors installed on rotating shafts. The internal signal conditioning circuit shapes and isolates the input pulse signals, then the core processing unit converts pulse frequency into actual rotational speed value through fixed algorithm. The measured speed is compared with preset threshold values. When the speed exceeds over-speed limit, drops below under-speed limit or stays at zero speed, the internal logic circuit triggers alarm signals and drives relay contacts to act for equipment interlock or tripping. Real-time operating data and fault codes are displayed on the local panel and uploaded to the upper control system synchronously.
- High measurement accuracy and fast signal response to ensure timely equipment protection
- Universal power supply design, adaptable to global industrial power grid specifications
- Complete signal isolation design with strong anti-interference capability for harsh workshop environments
- On-site configurable parameters, no need for external programming tools
- Standard DIN rail installation, easy cabinet layout and replacement
- Long service life and stable performance, low daily maintenance workload
- Wide compatibility with mainstream speed sensors and industrial control systems
Thermal power generation, hydroelectric power, petrochemical, metallurgy, cement manufacturing, wind power, water supply and drainage, large fan and pump unit protection
- Mount the module on standard 35 mm DIN rail inside the industrial control cabinet and lock the fixing clip tightly.
- Reserve 10 mm gap between adjacent modules for natural heat dissipation.
- Complete all wiring after power cut; strictly distinguish power lines, sensor signal lines and output interlock lines per official wiring diagram.
- Route signal cables separately from high-power power cables to avoid electromagnetic interference.
- Keep the installation area away from heat sources, liquid splashing and corrosive gas.
- Operate strictly within the rated voltage, temperature and humidity range.
- Do not disassemble the enclosure; internal components have no user-serviceable parts.
- Check terminal tightness and indicator status periodically during operation.
- Clean dust on the module surface regularly to avoid heat dissipation failure.
- Cut off total power supply before parameter modification or wiring adjustment.
- Stop related equipment and troubleshoot immediately when fault indicator lights up.
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