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Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement)
Operation Manual for the A7000 Series
AC Voltage Measurement: A7X14-X
AC Small Current Measurement: A7X15-X
AC Large Current Measurement: A7X16-X
CAUTIONS
(1) Application of voltage or current exceeding the maximum allowable value to the
input section may damage the instrument.
(2) Use the supply voltage in the allowable range. Using it out of this range may
result in fire, electric shock, or an instrument failure.
(3) Please note that the information contained in this manual is subject to change
due to product improvements without notice.
(4) Every effort has been made to ensure accuracy in the presentation of this
manual. However, should you have any questions or should any errors or
omissions come to your attention, please contact your sales representative or our
sales office directly.
(5) After reading, keep this manual nearby so that you can refer to it as needed.
1. Check before Use
Thank you for purchasing our A7000 series. The operator who
uses the instrument should keep this manual on hand. When you
receive the product, make sure that you have all the parts and that
none have been damaged during transportation. If any part is
damaged or missing, contact your sales representative or our sales
office directly.
1.1. Type Configuration
The type configuration of the A7000 series is as shown below.
Check that there is no difference in the type or specifications
between the product you ordered and the product you have
received.
A7
Power
1:AC power(100 to 240V AC,50/60Hz)
2:DC power(12 to 48V DC)
Input
1:DC voltage measurement(±100mV,±1V,±10V,±100V,or
±700V measurement
2:DC small current measurement(±100μA,±1mA,±10mA,
or±100mA measurement
3:DC large current measurement(±1A or ±2Ameasurement)
4:AC voltage measurement(100mV,1V,10V,100V,
or 700V measurement)
5:AC small current measurement(100μA,1mA,10mA,or 100mA
measurement)
6:AC large current measurement(1A or 5Ameasurement)
7:Resistance measurement
8:Temperature measurement(TC,RTD)
9:Frequency measurement
A:Load cell input
B:Process signal measurement(1 to 5V,±5V ,4 to 20mA,or
±20mA measurement)
Output
0:None
1:Relay contact output
2:Photocoupler output
3:BCD output (TTL)
4:BCD output (Open collector)
5:BCD output (TTL)
+ Photpcoupler output
6:BCD output (Open collector) + Photpcoupler output
7:Analog output
8:Analog output + Photocoupler output
9:RS-232C
A:RS-485
B:RS-232C + Photocoupler output
C:RS-485 + Photocoupler output
WATANABE ELECTRIC INDUSTRY CO.,LTD.
2. Mounting Method
2.1. Panel Cutout Dimensions
For panel cutout made when mounting the A7000 series
measuring unit, follow the figure below.
+0.7
68
-0
96 mm or more
2.2. Panel Mounting Method
To mount the A7000 series measuring unit onto a panel, remove
the mounting band from the main unit, fit the unit into the panel from
the front of the panel, and fix it using the mounting band removed
from the rear of the panel. If you wish to increase the strength of the
mounting, attach fixing supports with screws as shown in the figure
below. For fixing supports and screws, contact your sales
representative or our sales office.
Mounting band
CAUTIONS
(1) Mount the instrument securely on a surface that will be able to bear its weight.
Insufficient strength for mounting or incorrect mounting may result in the instrument
falling and injuring personnel.
(2) The A7000 series has no power switch. Connecting power to the instrument
makes the product immediately operable.
(3) If the instrument is installed inside equipment to heat radiation, etc., and ensure
that the in-equipment temperature does not rise above 50°C.
3. Description of Terminals and Connection
Output section (different configuration for BCD
output)
Input section
3.1. Connecting Power
Recommended
Torque:0.5Nm
100 to 240V AC(50/60Hz)
12 to 48V DC
+
Name
Terminal No.
1
Power
Power connection terminal. 0V for DC driving
Power connection terminal. +V for DC driving
2
Power
1/12
Lugs
Plastic screw
Fixing support
M3×20
Power section
Applicable crimp terminal
5.8 or less
5.8 or less
Description
UW-33803m
2020.12

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Summary of Contents for WATANABE ELECTRIC INDUSTRY A7X14-X

  • Page 1 1/12 2. Mounting Method Operation Manual for the A7000 Series 2.1. Panel Cutout Dimensions AC Voltage Measurement: A7X14-X For panel cutout made when mounting the A7000 series AC Small Current Measurement: A7X15-X measuring unit, follow the figure below. AC Large Current Measurement: A7X16-X +0.7...
  • Page 2 Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 2/12 3.2. Connecting Input Signal 3.3. Connecting Various Output Signals AC Voltage Measuring Unit Relay Contact Output Unit 3.2.1. 3.3.1. Applicable crimp terminal Adaptable wire: AWG24 to AWG16 5.8 or less 5.8 or less Recommended torque : 0.18Nm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 3: Analog Output Unit

    Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 3/12 BCD Unit RS-232C Unit 3.3.3. 3.3.5. Adaptable wire: AWG24 to AWG16 Recommended torque : 0.18Nm 2 8 2 8 2 8 2 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Term.
  • Page 4: Part Names And Their Functions

    Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 4/12 4. Part Names and their Functions ① ② ③ Loca- Name Main Functions tion ① Judgment Monitor Indicates judgment results when the unit is used as a meter relay. RE HH...
  • Page 5 Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 5/12 Scaling Data 5.1.2. Initial Menu Display Parameter Name Settable Range or Alternatives Main Setting Target and Precautions P.L. Value (voltage) (RANG) Input range (small current) Selects the input range. *Note that the input terminal changes depending on the input range. (large current) Full-scale indicated value ~...
  • Page 6 Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 6/12 5.4. Shifting to the Parameter Setting Mode 5.6. Scaling Data Setting Procedure This section describes the concept of scaling data and an example Measurement operation of setting a full-scale indicated value as a typical example. Take the Pressing for a prolonged time same steps for other parameters.
  • Page 7 Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 7/12 5.7. Comparator Data Setting Procedure Measurement operation The A7000 can shoose comparison a vertical judgment or a tolerance judgment with the comparison output type of a comparator data setup. Pressing for a prolonged time High and Low Judgment Type 5.7.1.
  • Page 8 Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 8/12 Tolerance Judgment Type 5.8. Shift Data Setting Procedure 5.7.2. The tolerance judgment type allows you to set a nominal value and its The shift function allows you to arbitrarily shift the display without tolerances (±XX%) to make judgment on the basis of the judgment changing the inclination of an input signal.
  • Page 9: External Control Function

    Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 9/12 6. External Control Function 5.9. Linearize Data Setting Procedure 6.1. Each External Control Terminal The linearize function corrects the linear relationship between an input and the display at any point to change the inclination of the linear Internal circuit: pull-up at approx.
  • Page 10: Comparison Output

    Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 10/12 7.3. Analog Output Function Withstand voltage (DC power): Power terminal to input terminal, COM, comparison output, The A7000 series can output an analog signal with respect to the BCD, indicated value (when the analog output unit has been installed). analog output, or RS communications terminal 500 V DC for 1 There are four types of outputs: 0 to 1 V, 0 to 10 V, 1 to 5 V, and 4 to minute...
  • Page 11: Analog Output

    Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement) 11/12 Analog Output 8.3.3. 9. Timing Chart Conversion method: PWM conversion Start/hold type A Resolution: 13 bits or equivalent Scaling: Digital scaling Internal Response rate: Approx. 0.5 seconds sampling Output Type Resistive Load Accuracy Ripple...
  • Page 12: Error Messages

    If a failure occurs during this period that is clearly judged to Indicates that a signal exceeding the measurement range has been applied. be caused by a defect ascribable to Watanabe Electric Industry, we will repair the failure or replace any defective parts without charge.

This manual is also suitable for:

A7000 seriesA7x15-xA7x16-x

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