MG 48N Operating Manual
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MG 48N Operating Manual

MG 48N Operating Manual

Bargraph indicating alarm (with 4-digit digital meter; potentiometer input)
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Bargraph Indicators 48N Series
BARGRAPH INDICATING ALARM
(with 4-digit digital meter; potentiometer input)
Model: 48NDM
OPERATING MANUAL
MG CO., LTD. www.mgco.jp
48NDM EM-9445-B Rev. 3
1
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

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  • Page 1 Bargraph Indicators 48N Series BARGRAPH INDICATING ALARM (with 4-digit digital meter; potentiometer input) Model: 48NDM OPERATING MANUAL MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 2: Table Of Contents

    4.2 ALARM TRIP AND BARGRAPH COLOR DISPLAY OPERATION ........29 4.3 OPERATING PROCEDURE ....................30 5. SETTING ALARM ON DELAY TIME ............31 5.1 OPERATING PROCEDURE ....................32 6. AVERAGING INPUT ................33 6.1 OPERATING PROCEDURE ....................34 MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 3 10.1 DETACHING SCALE PLATE .....................43 10.2 ATTACHING SCALE PLATE ....................43 11. INSPECTION AND CLEANING ............44 12. APPENDICES ..................45 12.1 SPECIFICATIONS ......................45 12.2 MODEL NUMBERING ......................48 12.3 PARAMETER LIST ......................49 MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 4: Introduction

    Included when the ex-factory setting is the selected option code. selected as option. ■ MODEL NO. Confirm Model No. marking on the product to be exactly what you ordered. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

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

    • Excessive fastening may result in damage of the screws and loose screws may occasionally result in ignition. Do not throw the unit into the fire. • Doing so may result in rupture of the electronic component. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 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 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 7: Points Of Caution

    – Where there are high-voltage lines, high-voltage equipment, power lines, power equipment, equipment with transmis- sion unit such as a ham radio equipment, and/or equipment generating large switching surges around the unit. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3...
  • Page 8 – The packing is running off the edge. – The packing is torn or broken. – There are foreign objects caught between the packing and the unit or the panel. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 9: Component Identification

    Setpoint 1 value Pattern 2 (Bar LED color code: 2) UP button Setpoint 2 green PV value Setpoint 1 Mode button orange green DOWN button Digital Indicator MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 10 LL setpoint value Pattern 2 (Bar LED color code: 2) LL setpoint LED UP button green PV value Mode button orange green DOWN button Digital Indicator MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 11 • Turns on when LL alarm is tripped (4-point alarm only). LL limit LED green • Blinks while setting LL setpoint value or LL ON delay time (4-point alarm only). MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 12 • Right side • Rear side Speci cations Connection diagram • Left side Connection diagram NOTE • These markings differ depending on the specifications of the ordered product. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 13: Installation

    *3. Used for the existing DIN panel cutout (33 × 138 mm) *4. Used for the existing panel cutout of Fuji Electric PAJ, PAK, PBA (44 × 138 mm), etc. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 14: Installation

    For clustered mounting of two or more units, attach one bezel in between the units. Bezel • Single mounting • Clustered mounting (when mounting 3 units) MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 15: Mounting The Unit On A Panel

    • Accompanying bezels are not used when a panel with a cutout of the specified size for 48NDM is used in single mount- ing or clustered mounting. • Sufficient space (at least 3 cm high) is necessary both above and below the unit for heat dissipation. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 16: Wiring Instructions

    • When 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 coming off. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 17: Terminal Assignment

    • Take measures to reduce noise as much as possible, e.g., by using shielded twisted pair wires for the input signal. • Ground the input shield to the most stable earth to prevent noise troubles. • Do not connect anything to unused terminals. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 18: Wiring Alarm Outputs

    Alarm output code: 2 Alarm output code: 4 H alarm output HH alarm output H alarm output L alarm output L alarm output LL alarm output MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 19: Wiring Power

    • Use wires as thick as possible and twist them from the end. • For DC power, confirm the polarity. Power AC Power DC Power MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 20: Attaching/Detaching Terminal Block

    1.6.8 OPENING/CLOSING TERMINAL COVER The terminal cover can be opened/closed easily with fingers. Be sure to close the terminal cover for safety after wiring. Opening/closing of the terminal cover MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 21: Basic Setting And Operation

    Please reconfigure them. • is displayed to indicate that L/LL alarm setpoint (Setting 1) value is below 0% or H/HH alarm setpoint (Setting 2) value is above 100%. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 22: Mode Transition

    The value returns to the value before change or adjustment. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 23: Shift Through Parameter Items

    S LED blinking S LED blinking Setting 2 2 LED blinking * Item Nos. 1 and 5 are only available for Display patterns 1 and 2. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 24 H LED blinking HH Setpoint HH ON delay time HH LED blinking HH LED blinking * Item Nos. 1 and 7 are not available for 2-point alarm. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 25: Bargraph Zero / Span Adjustment

    • The resistance between Terminals 1 and 2 becomes smaller as the wiper moves closer to Terminal 1 and becomes greater as the wiper moves closer to Terminal 3. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 26: Operating Procedure Of Bargraph Zero Adjustment

    Refer to steps [3] and [4] in "8.3 OPERATING PROCEDURE FOR SETTING DIGITAL INDICATOR ZERO ADJUST- MENT" on page 38. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 27: Operating Procedure Of Bargraph Span Adjustment

    Refer to steps [3] and [4] in "8.4 OPERATING PROCEDURE FOR SETTING DIGITAL INDICATOR SPAN ADJUST- MENT" on page 39. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 28: Setting Alarm Output

    In 4-point alarm, set LL and HH prior to L and H. • The user cannot change alarm output logic or set all the alarm outputs to H (or L). MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 29: Alarm Trip And Bargraph Color Display Operation

    ■ EXAMPLE OF COLOR DISPLAY OPERATION OF DISPLAY-ONLY PATTERNS 1 AND 2 Bar LED Color Code: 1 Bar LED Color Code: 2 Input signal Setpoint 2 green green Setpoint 1 orange orange MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 30: Operating Procedure

    Shift to each item to be changed and perform the same procedure from Steps 2 to 4. • For the setting range in Step 3, refer to "4.1 SETTING RANGE AND INITIAL SETTING" on page 28. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3...

  • Page 31: Setting Alarm On Delay Time

    • For display-only patterns 1 and 2, ON delay time is configurable, however, DO NOT change from the initial setting ); otherwise, a deviation may occur between timing when the bargraph color display is switched and timing when LED (1) or (2) turns ON. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 32: Operating Procedure

    • Other alarm ON delay times can be set in the same manner. Shift to each item to be changed and perform the same procedure from Steps 2 to 5. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 33: Averaging Input

    (2) After the number of samples reaches the set value, averaging calculation is performed with a new sample added and the oldest one omitted. Such operation is repeated. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 34: Operating Procedure

    • It is selectable from among , and Press button to register the number of samples. • The value is registered and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 35: Adjusting Brightness Of Display

    Brightness level 2 Brightness level 3 Brightness level 4 Brightness level 5 Brightness level 6 Brightness level 7 (bright) ■ ADJUSTMENT IMAGE Brighter Brighter Darker Darker MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 36: Operating Procedure

    Change the brightness using button. • Select one among Press button to register the adjusted brightness. • The value is registered and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 37: Setting Digital Indicator

    “Decimal Point Position” , however, the actual settings can be performed in any order. NOTE • Digital indicator zero/span adjustment can also be performed along with bargraph zero/span adjustment. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 38: Operating Procedure For Setting Digital Indicator Zero Adjustment

    • It can be set within the range between Press button to register the digital indicator zero adjustment. • The value is registered and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 39: Operating Procedure For Setting Digital Indicator Span Adjustment

    • It can be set within the range between Press button to register the digital indicator span adjustment. • The value is registered and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 40: Operating Procedure For Setting Decimal Point Position

    3 digits after the decimal point (10 Press button to register the decimal point position. • The value is registered and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 41: User Calibration

    Check that the bargraph and digital indicator each show 0%, 25%, 50%, 75%, 100% and remain within the specified ac- curacy range. When their values are out of the range, calibrate the unit according to each method of adjustment described above. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 42: Bargraph Zero/Span Adjustment

    (adjustment) for more than the time specified in the respective manuals. • For details of bargraph zero/span adjustment procedure, refer to "9.1 BARGRAPH ZERO/SPAN ADJUSTMENT" on page 42. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 43: Replacement Of Scale Plate

    1) Fit the convex portions at the bottom end of the scale plate into the concave portions of the unit. 2) Press the scale plate against the unit. 3) Pull down the slider until it clicks into place. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 44: Inspection And Cleaning

    When checking, interrupt electricity to the power, input, and alarm output for safety. • Periodically check that the mounting brackets are fixed tightly. Loose brackets may cause drop of the unit. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 45: Appendices

    , 10 , or none Decimal point position –1 –2 –3 Zero indication Leading zeros suppression Engineering unit Max. 6 characters printed on the scale plate MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 46: Input Specifications

    -5 to +55°C (23 to 131°F) Operating humidity 30 to 90% RH (non-condensing) Altitude up to 2000 meters Mounting Panel flush mounting Weight 300 g (0.66 lb) MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 47 The UK legislations and designated standards are equivalent to the applicable EU directives. (Refer to our web site for more information about the legislations and designated standards.) MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 48: 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-9445) MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 49: Parameter List

    HH ON delay time 0 – 15 HH blinking ---- Second * HH and LL related settings are not available for 2 points alarm models. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 50 As per the User- set position defined * Setpoint 1 and Setpoint 2 related settings are available only for Display only patterns 1 and 2 models. MG CO., LTD. www.mgco.jp 48NDM EM-9445-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

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