Mitsubishi Electric QE81WH Energy Measuring Module User Manual

MITSUBISHI ELECTRIC QE81WH Energy MeasuringModule User Manual

  • Before using this module, please read both this manual and Details carefully and pay full attention to safety to handle this module correctly.
  • Make sure that the end users read this manual and then keep the manual in a safe place for future reference.

ABOUT MANUALS
The following manuals are also related to this module. Order each manual as needed, referring to the following list.

COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES
(1) For programmable controller system To configure a system meeting the requirements of the EMC and Low Voltage Directives when incorporating the Mitsubishi programmable controller (EMC and Low Voltage Directives compliant) into other machinery or equipment, refer to Chapter 9 “EMC AND LOW VOLTAGE DIRECTIVES” of the QCPU User’s Manual (Hardware Design, Maintenance and Inspection). The CE mark, indicating compliance with the EMC and Low Voltage Directives, is printed on the rating plate of the programmable controller.
(2) For this module For the compliance of this module with the EMC and Low Voltage Directives, refer to Section 6.1 Wiring.

1. Features

  1. This Energy Measuring module can measure various types of electric quantity just ONE module. This Energy Measuring module can measure electric energy, reactive energy, current, voltage, electric power, power factor, and frequency. Both consumption and regeneration of the electric energy can be measured.
  2. Extensive monitoring functions In addition to memorizing the maximum and minimum values, two types of alarm monitoring for upper and lower limit can be performed.
  3. It also can measure the electric energy for a certain period. It can measure the electric energy for the duration of time for which the output device is on. This feature enables to acquire the electric energy needed during device operation or energy per tact.

2. Checking packaged contents

The following items for this device are included in the package. Check that no items are missing.

  • Energy Measuring module x 1
  • User’s Manual (Hardware) x 1

3. Safety Precautions

3.1 Precautions for Operating Environment and Conditions

Do not use this product in the places listed below. Failure to follow the instruction may cause malfunctions and a life decrease of product.

  • Places the Ambient temperature exceeds the range 0 ­ 55ºC.
  • Places the Relative humidity exceeds the range 5 ­ 95% or places with dewfall.
  • Altitude exceeds 2000 m.
  • Places exposed to rain or water drop.
  • Dust, corrosive gas, saline and oil smoke exist.
  • Vibration and impact exceed the specifications.
  • Installed excluding the control panel.
3.2 Matters concerning the preparation

before use Use the module in the specified usage environment and conditions. The setting of this module phase system, primary voltage, primary current necessary before using it. Please refer to “User’s Manual (Details)” about each setting method.

3.3 Installation and Wiring Precautions

3.4 Precautions for Start-up and Maintenance

3.5 Disposal Precautions

When disposing of this module, treat it as industrial waste.

4. Name and function of each part

4.1 Names and functions of parts of QE81WH are provided below.

4.2 Names and functions of LEDs

5. Attaching and removing the module

5.1 How to attach to the base unit

  • Attach to the base unit of MELSEC-Q series.
  • When attaching the module, make sure to insert the protruding portions for fixing the module into the holes on the base unit. In doing so, insert it securely so that the protruding portion of the module does not come off of the holes. Do not force to attach the module; otherwise the module may break.
  • When installing the module at a vibrating area with strong impact, tighten the module to the base unit using screws. Fixing-Module screw (arranged by user): M3 x 12mm Tightening torque of the fixing-module screws: 0.36 ­ 0.48 NM

6. How to wire

6.1 Wiring

Follow the wiring diagram for external connection of QE81WH. When using this product, make sure to use it in combination with current sensor (EMU-CT series or EMU2-CT5). See the User’s Manual (Details) of this unit, and the installation method and the detailed specifications of the current sensor.

Three-phase 3-wire

Caution

  • Input signal wire shall not be bound together with or placed close to the main circuit and power line. Keep 300 mm or longer distance between them.
  • The input wiring of the measurement circuit uses other signals cable and separate cables, and do not be affected by serge and the instruction of the interchange side.
  • For the actual usage, connect the FG terminal to ground. (D-type ground: Type 3) Connect it directly to the ground terminal.
  • Do not connect to FG terminal during the insulation resistance test and pressure test.
  • Make sure that before connecting the cable, the orientation of the current sensor is correct for attachment. K to L is the correct direction. K: power source side, L: load side.
  • If a 440 V or higher circuit is used, use a transformer.
  • The available transformer ratio is 220/110 V to 6600/110 V. For connection to P1 to P3 terminals on QE81WH, connect the secondary of transformer. Make sure that terminal symbols are correct.
6.2 How to connect wires
  • Use appropriate electric wires as described below.
  • Stripping length of the used wire in use has to be 10 to 11mm. Check the stripping length using the strip gauge of this module.
  • When stranded wire is used, a bar terminal must be used.
  • When attaching and detaching cables to/from the terminal, use the push button. Check that the wire is securely inserted.
  • Insert a wire to the terminal all the way until it touches the end.

7. Dimensions

8. Specifications

9. Warranty

The charge free warranty period for the product shall be 1 year from the date of your purchase or the date the product is delivered to your specified delivery location However, the maximum limit of the charge-free warranty period shall be set to 18 months from the time of manufacture by defining the longest distribution period of the product as 6 months after the product is shipped from our manufacturing factory. Also, the charge-free warranty period for the replacement product shall not be extended exceeding the charge-free warranty period for the original product.

Our company shall not be liable to compensate for any loss arising from events not attributable to our company, opportunity loss and lost earning of the customer due to failure of the product, and loss, secondary loss, accident compensation, damage to other products besides our products and other operations caused by a special reason regardless of our company’s predictability in both within and beyond the charge-free warranty period.

Caution

If an abnormal sound, bad-smelling smoke, fever break out from this module, I switch it off promptly, and don’t use it.

10. Customer Service

MITSUBISHI ELECTRIC CORPORATION

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, Japan

Please refer to “catalog” or “user’s manual (Details)” for more detail.