MG 40 Series Operating Manual
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MG 40 Series Operating Manual

MG 40 Series Operating Manual

Ac current input digital panel meter (4 digits, process meter, true rms sensing)
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Digital Panel Meters 40 Series
AC CURRENT INPUT DIGITAL PANEL METER
(4 digits, process meter, true RMS sensing)
Model: 40DCT
OPERATING MANUAL
MG CO., LTD. www.mgco.jp
40DCT EM-9538-B Rev.5
1
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

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  • Page 1 Digital Panel Meters 40 Series AC CURRENT INPUT DIGITAL PANEL METER (4 digits, process meter, true RMS sensing) Model: 40DCT OPERATING MANUAL MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 2: Table Of Contents

    3.4 STEP 4. DISPLAY SCALING VALUE A ................31 3.4.1 DISPLAY SCALING LIST ..................31 3.4.2 OPERATING PROCEDURE ...................31 3.5 STEP 5. DISPLAY SCALING VALUE B ................33 3.5.1 OPERATING PROCEDURE ...................33 MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 3 13.1 SPECIFICATIONS ......................52 13.2 MODEL NUMBERING ......................54 13.3 PARAMETER LIST ......................55 13.4 PARAMETER MAP ......................56 13.4.1 SCALING SETTING MODE ..................56 13.4.2 DISPLAY SETTING MODE ..................57 13.5 CHARACTER SET ......................58 MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 4: Introduction

    NXXXXX Ordering Information Sheet (included with the option code ‘/SET’ only) ■ MODEL NO. Confirm Model No. marking on the product to be exactly what you ordered. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 5: Safety Precautions (That Must Be Observed)

    Stop using the unit immediately if smokes, unusual smell or abnormal noises come(s) from it. • Using the unit continuously may result in a fire or electric shock. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 6 • Doing so may result in inflammation, ignition, or smoke. Do not cover the ventilation slits with cables, etc. • Doing so may result in malfunction or heating. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 7: Points Of Caution

    • When abnormality is found such like smokes, unusual smell and abnormal noises coming from the unit, immediately cut the power supply and stop using it. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 8: Component Identification

    Used to move on to the setting standby status. HIFT Used to change setting values in a setting standby mode. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 9 • When a tag No. is specified, the unit(s) will be shipped with the tag No. sticker label put on the above position. Max. 17 alphanumeric characters can be specified. Please consult us. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5...

  • Page 10: Installation

    12 (.47) ■ REAR VIEW 10–M3 SCREW 6.4 (.25) TERMINALS 1.5.2 PANEL CUTOUT DIMENSIONS + 0.8 unit: mm – 0 min. 120 Panel thickness: 1.6 to 8.0 mm MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 11: Installation

    Panel (3) Push the mounting brackets into the grooves on both sides of the rear module, until they hit the panel’s rear side. Panel Bracket Fixing groove MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 12: Wiring Instructions

    • In using non-insulated solderless terminals, cover them with insulating caps or tubes. • Ring tongue terminals are recommended rather than spade tongue terminals to prevent from falling off. 1.6.3 TERMINAL ASSIGNMENT Input signal Hold input Power MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 13: Wiring Input Signal

    • Ground with the resistance 100 Ω or less. • Do not connect anything to unused terminals. AC current input Ground (resistance 100 ohms or less) SOURCE LOAD MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 14: Wiring Hold Input

    • Isolate with a photo-coupler or a relay as the HOLD input is not isolated to the AC input signal. HOLD input HOLD HOLD command signal ■ WIRING EXAMPLES (a) Photo-Coupler HOLD HOLD Photo-Coupler Twisted pair cable (b) Relay HOLD HOLD Relay Twisted pair cable MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 15: Wiring Power

    • Use wires as thick as possible and twist them from the end. • For DC power, confirm the polarity. Power U(+) V(–) AC power DC power ‒ MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 16: Attaching/Removing Terminal Cover

    1.6.7 ATTACHING/REMOVING TERMINAL COVER Attach the terminal cover for safety after wiring. Terminal cover MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 17: Basic Setting And Operation

    Input scaling: 0% input value (input scaling value A) and 100% input value (input scaling value B) Display scaling: 0% display value (display scaling value A) and 100% display value (display scaling value B) MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5...

  • Page 18: Mounting/Removing Front Panel

    • Be sure to confirm the direction of the front panel in mounting. • Make sure that there is no misalignment or space between the unit and the panel after mounting. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 19: Basic Setting Procedure

    HIFT Return to Measuring Mode (measurement started). • Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 20: Basic Setting Operation And Instructions

    Press S button to apply the new setting. HIFT • The setting item is indicated. *1 Display depands on the settings. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 21 Press S button to apply the new setting. HIFT • The setting item is indicated. *1 Display depands on the settings. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 22: Instructions On Basic Operation

    • The display goes back automatically to Measuring Mode after approximately 1 minute while the setting item is indicated. ■ TO ABORT A SETTING… • If you get lost in a setting mode, you can execute initialization. Refer to 12.2 INITIALIZING SETTING VALUES. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 23: Setting Scaling Values

    The display value increases The display value decreases when the input signal increases. when the input signal increases. Display Display Display Scaling Display Scaling Input Input Input Scaling Input Scaling MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 24 Following pages describe operating procedures in each step to set the input scaling to 0 – 1 A AC, and the display scaling to 0.0 – 300.0 A AC as an example. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 25: Step 1. Decimal Point Position

    Indication ‘S.ERR’ may blink, which shows the input out of the permis- sible range and does not show the unit failure. *1 Display depends on the settings and input. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 26 Skip to Step 3 in “3.2 STEP 2. INPUT SCALING VALUE A” . ■ TO QUIT, Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 27: Step 2. Input Scaling Value A

    Indication ‘S.ERR’ may blink, which shows the input out of the permis- sible range and does not show the unit failure. *1 Display depends on the settings and input. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 28 Skip to Step 3 in “3.3 STEP 3. INPUT SCALING VALUE B” . ■ TO QUIT, Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 29: Step 3. Input Scaling Value B

    /↑ button to go to the input scaling value B CALE setting. • The setting item ‘I SP’ (input scaling value B) is indicated. NOTE Skip to Step 7 if the default value is acceptable. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 30 Skip to Step 3 in “3.4 STEP 4. DISPLAY SCALING VALUE A” . ■ TO QUIT, Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 31: Step 4. Display Scaling Value A

    Indication ‘S.ERR’ may blink, which shows the input out of the permis- sible range and does not show the unit failure. *1 Display depends on the settings and input. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 32 Skip to Step 3 in “3.5 STEP 5. DISPLAY SCALING VALUE B” . ■ TO QUIT, Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 33: Step 5. Display Scaling Value B

    /↑ button to go to the display scaling value B CALE setting. • The setting item ‘D SP’ (display scaling value B) is indicated. NOTE Skip to Step 7 if the default value is acceptable. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 34 HIFT • And the setting item is indicated. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 35: Operation

    Blinking Apply 0.5 A input (50%) and make sure that 150.0 A is indicated. Apply 1 A input (100%) and make sure that 300.0 A is indicated. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 36: Parameter Configuration

    ■ TRANSITION FROM EACH MODE TO MEASURING MODE Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 37: Averaging Input

    No. reaches the set value, all samples are averaged every 100 milliseconds. (2) After the sampling No. reaches the set value, a new sample is added to be averaged with the oldest one omitted. Such operation is repeated. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 38: Operating Procedure

    HIFT • And the setting item is indicated. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 39: Adjusting Brightness Of Display

    Brightness level 1 Brightness level 2 Brightness level 3 Brightness level 4 Brightness level 5 (bright) ■ ADJUSTMENT IMAGE Increasing brightness Decreasing brightness Increasing brightness Decreasing brightness MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 40: Operating Procedure

    HIFT • And the setting item is indicated. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 41: Eliminating Fluctuation Around "0

    50, for example, the indication with the scaling value -1000 to 49 will be cut to 0. • When the display scaling is set to negative to positive range, set the low-end cutout to absolute value low-end cutout MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5...

  • Page 42: Low-End Cutout

    Skip to Step 2 in “8.2 LOW-END CUTOUT VALUE” . ■ TO QUIT, Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 43: Low-End Cutout Value

    Blinking • Set within the range of 000 to 999. NOTE Set the value for the display scaling. The decimal point is not indicated. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 44 HIFT • And the setting item is indicated. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 45: Holding Display

    • While the HOLD command is input, the display keeps the value at the HOLD command turning on, even though the input is out of range. • In supplying power with the HOLD command on, 0 is indicated. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 46: User Calibration

    Set the correction value 0% and 100% as new display scaling value A and B. Display scaling value A = -0002 Display scaling value B = 1002 MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 47: Inspection / Cleaning

    • Check the terminal screws periodically. In checking the screws, for safety, interrupt electricity to the power and input. • Make sure periodically that the mounting brackets are fixed tightly. Loosened brackets may cause drop of the unit. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5...

  • Page 48: Troubleshooting

    If the input signal is out of the permissible range, the indicator will blink “S.ERR”. Display Permissible Range 2000 Input > Display Input 2.4 A (100%) (120%) (0%) Input Permissible Range MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 49: Initializing Setting Values

    /↓ or S /↑ button to go to the initialization. CALE • The setting item ‘RST’ (initialization) is indicated. Press S or U button to select ‘ON’. HIFT MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 50 • The settings are initialized and then the setting item is indicated. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 51: Confirming Firmware Version

    • The displays depend on the firmware version number. Hold down D /↓ or S /↑ button for 1 second or more to return to Measuring Mode. CALE MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 52: Appendices

    Measurement range (conformance range) 0.000 – 1.000 A AC Input range 0 – 1.2 A AC Frequency 45 – 65 Hz Input transformer Input burden 0.1 VA MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 53 EMS EN 61000-6-2 Low Voltage Directive EN 61010-1 Measurement Category I (input) Installation Category II (power) Pollution degree 2 Input to power: Reinforced insulation (300 V) RoHS Directive MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 54: Model Numbering

    Moving parts and indicators are not coated. /C01: Silicone coating /C02: Polyurethane coating /C03: Rubber coating EX-FACTORY SETTING /SET: Preset according to the Ordering Information Sheet (No. ESU-9538) MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 55: Parameter List

    0 (dark) to 5 (bright) ---- ---- Initialization OFF, initialization ---- ---- Version indication ---- ---- ---- ---- ---- ---- *1 Conforms to decimal point position setting. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 56: Parameter Map

    Low-end cutout value Display scaling value A 000 – 999 -9999 to 9999 /↓ /↑ /↓ /↑ CALE CALE NOTE The display depends on the specifications, settings and input. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 57: Display Setting Mode

    Indicating rmware version /↓ /↑ CALE e.g. V1.00.0002 NOTE • The display depends on the specifications, settings and input. • Version indication is for indication only, not for setting. MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 58: Character Set

    13.5 CHARACTER SET ■ NUMERALS ■ ALPHABET MG CO., LTD. www.mgco.jp 40DCT EM-9538-B Rev.5 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

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