MG 48N Series Operating Manual
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MG 48N Series Operating Manual

MG 48N Series Operating Manual

Bargraph indicating alarm (with 4-digit digital meter; with isolated dc output)
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BARGRAPH INDICATING ALARM
(with 4-digit digital meter; with isolated DC output)
OPERATING MANUAL
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Bargraph Indicators 48N Series
Model: 48NDVA
48NDVA EM-9441-B Rev. 3
1

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  • Page 1 Bargraph Indicators 48N Series BARGRAPH INDICATING ALARM (with 4-digit digital meter; with isolated DC output) Model: 48NDVA OPERATING MANUAL MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 2: Table Of Contents

    4. SETTING ALARM ON DELAY TIME ............29 4.1 OPERATING PROCEDURE ....................30 5. AVERAGING INPUT ................31 5.1 OPERATING PROCEDURE ....................32 6. ADJUSTING BRIGHTNESS OF DISPLAY ...........33 6.1 OPERATING PROCEDURE ....................34 MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 3 11.1 DETACHING SCALE PLATE .....................48 11.2 ATTACHING SCALE PLATE ....................48 12. INSPECTION AND CLEANING ............49 13. APPENDICES ..................50 13.1 SPECIFICATIONS ......................50 13.2 MODEL NUMBERING ......................53 13.3 PARAMETER LIST ......................55 MG CO., LTD. www.mgco.jp 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 7: Points Of Caution

    • Be sure to confirm the name and polarity of each terminal before wiring to the terminal block. • Do not connect anything to unused terminals. • Be sure to attach the terminal cover to prevent electric shock. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • 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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA is used in single mounting 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 48NDVA EM-9441-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 48NDVA EM-9441-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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 18: Wiring Dc Output

    Alarm output code 4: 4 points HH alarm output H alarm output H alarm output L alarm output Input L alarm output L setpoint H setpoint LL alarm output Input MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 19 * It is effective to connect a varistor across a load with the supply voltage 24 to 28 V, and across a contact with 100 to 200 V. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 20: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 21: Attaching/Detaching Terminal Block

    1.6.9 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 22: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 23: Mode Transition

    The value returns to the value before change or adjustment. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 24: Shift Through Parameter Items

    S LED 2 blinking at double speed 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 25 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 26: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 27: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 28: 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 "3.1 SETTING RANGE AND INITIAL SETTING" on page 26. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3...

  • Page 29: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 30: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 31: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 32: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 33: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 34: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 35: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 36: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 37: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 38: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 39: Simulated Output

    • The number of zeros displayed in upper digits varies depending on the decimal point position setting. DECIMAL POINT POSITION DIGITAL INDICATION No decimal point 1 decimal place (10 2 decimal places (10 3 decimal places (10 MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 40: Operating Procedure

    5 seconds to return to Measuring mode. • As the unit returns to Measuring mode from Simulated output mode, measurement starts and the simu- lated output is reset. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 41: User Calibration

    Check that the bargraph, digital indicator, and DC output signal each show 0%, 25%, 50%, 75%, 100% and remain within the specified accuracy 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 42: Bargraph Zero/Span Adjustment

    • In the following operating procedure, input signal is applied in Step 1, however, input signal can be applied at any timing before pressing button in Step 4. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 43: Operating Procedure Of Bargraph Zero Adjustment

    Refer to steps [3] and [4] in "7.3 OPERATING PROCEDURE FOR SETTING DIGITAL INDICATOR ZERO ADJUST- MENT" on page 36. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 44: Operating Procedure Of Bargraph Span Adjustment

    Refer to steps [3] and [4] in "7.4 OPERATING PROCEDURE FOR SETTING DIGITAL INDICATOR SPAN ADJUST- MENT" on page 37. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 45: Dc Output Fine Adjustment

    • In the following operating procedure, input signal is applied in Step 1, however, input signal can be applied at any tim- ing before pressing button in Step 5. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 46: Operating Procedure Of Dc Output 0% Fine Adjustment

    DC output 0% fine adjustment. • The deviation of the DC output 0% is compensated and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 47: Operating Procedure Of Dc Output 100% Fine Adjustment

    DC output 100% fine adjustment. • The deviation of the DC output 100% is compensated and the unit returns to Measuring mode. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 48: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 49: 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 50: Appendices

    Decimal point position , 10 , 10 , or none –1 –2 –3 Zero indication Leading zeros suppression Engineering unit Max. 6 characters printed on the scale plate MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 51 -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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 52 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 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 53: Model Numbering

    M2: 100 – 240 V AC (Operational voltage range 85 – 264 V, 50/60 Hz) DC Power R: 24 V DC (Operational voltage range 24 V ±15 %, ripple 10% p-p max.) MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 54: Ex-Factory Setting

    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-9436) MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

  • Page 55: Parameter List

    Simulated output 0.0 – 100.0 Z-S blinking ---- 1st decimal output place * HH and LL related settings are not available for 2 points alarm models. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...
  • Page 56 Z-S blinking ---- 1st decimal output place * Setpoint 1 and Setpoint 2 related settings are available only for Display only patterns 1 and 2 models. MG CO., LTD. www.mgco.jp 48NDVA EM-9441-B Rev. 3 5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN...

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