Controllers MELSEC iQ-R Series Product features -Energy measuring-
Energy measuring module
This module is ideal for power measurement on the shop floor. It can be used for predictive maintenance, tracking specific energy consumption, checking equipment operation, and quality control.
Features<sup>A 10-ms data update cycle allows for fine-grained power measurement, contributing to predictive maintenance and specific energy consumption tracking</sup>
- By monitoring equipment degradation trends, you can prevent unexpected downtime and support stable operations. Reduce unnecessary costs through appropriate regular inspections by identifying the optimal maintenance timing
- Track specific energy consumption metrics to enhance energy savings and production efficiency in processes with short cycle times and multi-product production lines, such as beverage manufacturing
Equipment operation check and quality control through waveform data with a 254 µs sampling cycle (instantaneous values)
- The buffered output of voltage and current waveform data sampled every 254 µs can be utilized for product traceability and quality management, making it particularly effective for production equipment requiring high precision.
- Voltage dip monitoring*1 is possible by analyzing the buffered output of voltage waveform data. We provide a voltage dip monitoring function block, which helps reduce programming efforts.
- *1.SEMI F47 is not supported.
Specifications<sup>Energy measuring module specifications</sup>
| Item | RE81WH |
|---|---|
| Number of measurable circuits | 1 |
| Phase-wire systems | Single-phase 2-wire, single-phase 3-wire, three-phase 3-wire common |
| Current circuit (A AC) | 5, 50, 100, 250, 400, 600*2 5*3 |
| Voltage circuit | |
| Single-phase 2-wire, three-phase 3-wire (V AC) | 110, 220 common*4 |
| Single-phase 3-wire (V AC) | 110 (1-2 lines, 2-3 lines), 220 (1-3 lines) |
| Measurement specifications | |
| Data refreshing cycle (ms) | 10…10000*5 |
| Measurement items | Current, current demand, voltage, electric power, electric power demand, reactive power, apparent power, harmonic current, harmonic voltage, frequency, power factor, electric energy, reactive energy |
- *2.A value when a dedicated split-type current sensor is used. Each value indicates current sensor's primary current value.
- *3.A value when a dedicated 5 A current sensor is used. A 5 A current sensor is used with two-stage configuration in combination with a current transformer (CT). Primary current value can be set up to 6000 A.
- *4.Up to 6600 V can be set in combination with a voltage transformer (VT).
- *5.Can be set in increments of 10 ms.