Industry's first* PLC slot mounted type Energy Measuring Module
* As of September 2010
Achieves addition of measuring instrument without any additional space
By mounting the energy measuring module onto the open slot of the base unit, measuring instrument can be added without changing the layout in the control panel.
Achieves wire savings and engineering workload reductions
With a communication unit, communication cable and creation of a communication program are no longer needed, cost reductions can be realized by wire savings and engineering workload reductions.
Allows for detailed power measurement at high-speed (250ms)
Allows for easy specific energy consumption*1 management by matching the "production information" of the CPU unit with the "energy information" of the energy measuring module.
Since measured data is automatically collected in a buffer memory at 250ms, detailed specific energy consumption management is also available.
- *1 :
- The specific energy consumption is a numerical value displayed by "dividing energy consumption by production volume," which is one type of index that measures energy productivity. Improving this specific energy consumption leads to improvements in productivity.
Allows for easy construction of a "visualization" system
Allows for easy graphic display of specific energy consumption with a graphic operation terminal (GOT) installed on the control panel at the manufacturing site.*2
Combination with the "high-speed data logger module (QD81DL96)" allows specific energy consumption analysis to be easily performed with a PC.*2
(1) General specifications
|Phase wire system||Single-phase 2-wire, single-phase 3-wire, 3-phase 3-wire|
|110VAC, 220VAC common use|
|Single-phase 3-wire||110VAC (between wires 1-2, between wires 2-3), 220VAC (between wires 1-3)|
|Current circuit||AC50A, 100A, 250A, 400A, 600A (Dedicated split-type current sensor is used. In all cases, the current sensor's primary current is indicated.)|
|AC5A (Dedicated split-type current sensor is used. The 5A current sensor is used in combination with a current transformer (CT) in a two-step configuration. In this case, the maximum primary current setting is 6000A.)|
|Frequency||50-60Hz (automatic frequency selection)|
Current, demand current*1: ±1.0% (relative to 100% rating)
Voltage: ±1.0% (relative to 100% rating)
Power, demand power*1: ±1.0% (relative to 100% rating)
Frequency: ±1.0% (45 to 65Hz range)
Power factor: ±3.0% (relative to electrical angle of 90°)
Power level: ±2.0% (5 to 120% of rating, power factor = 1)
Reactive power level: ±2.5% (5 to 120% of rating, power factor = 0)
|Number of measurement circuits||1 circuit|
|Data refresh period||250ms (fixed) Note: Constant cumulative count of power level and reactive power level (also includes short-cycle load changes)|
|Response time||2 sec or less|
|Power outage compensation||Backup to non-volatile memory (Saved items: Setting values, max./min. values and their occurrence times, power level (regenerative, consumption), reactive power level, period power level)|
|Number of occupied I/O points||16 points (I/O assignment: intelligent 16 points)|
- *1 :
- "Demand" is the moving average over the specified time period.
(2) Measuring items
|Current||Single-phase current, 2-phase current*2, 3-phase current*2, total current|
|Current demand*1||Single-phase demand current, 2-phase demand current*2, 3-phase demand current*2, max. demand current|
|Min. demand current, max. demand current occurrence date/time, min. demand current occurrence date/time|
|Voltage||Voltage between wires 1-2, voltage between wires 2-3*2, voltage between wires 3-1*2, total voltage|
|Max. voltage, min. voltage, max. voltage occurrence date/time, min. voltage occurrence date/time|
|Demand power*1||Demand power, max. demand power, min. demand power|
|Max. demand power occurrence date/time, min. demand power occurrence date/time|
|Power factor||Power factor, max. power factor, min. power factor, max. power factor occurrence date/time, min. power factor occurrence date/time|
|Electric energy||Electric energy (consumption), electric energy (regenerative)|
|Reactive energy||Reactive energy (consumption lagging)|
|Term electric energy||Term electric energy 1, term electric energy 2|
- *1 :
- Indicates the moving average over the specified time period
- *2 :
- When the phase wire system is set to single-phase 2-wire, these parameters are not measured.