Mitsubishi Electric MELPRO A Series Instruction Manual Download Page 4

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JEP0-IL9556

 

Guarantee

                                                                                       

 

 

1.

 

Guarantee period 

The guarantee period of this product should be one year after delivery, unless otherwise specified by both 
parties. 

2.

 

Scope of guarantee 

When any fault or defect is detected during the period of guarantee and such fault or defect is proved to be 
caused  apparently  at  the  responsibility  of  MITSUBISHI  ELECTRIC  CORPORATION,  the  defective  unit 
concerned will be repaired or replaced with substitute with free of charge. However, the fee for our engineer 
dispatching to site has to be covered by the user. Also, site retesting or trial operation caused along with 
replacing the defect units should be out of scope of our responsibilities. 
It is to be acknowledged that the following faults and defects should be out of this guarantee. 
(1)  When  the  faults  or  defects  are  resulted  from  the  use  of  the  equipment  at  the  range  exceeding  the 

condition/environment requirements stated in the catalogue and manual. 

(2) When the faults or defects are resulted from the reason concerning without our products. 
(3) When the faults or defects are resulted from the modification or repair carried out by any other entity than 

MITSUBISHI ELECTRIC CORPORATION. 

(4) When the faults or defects are resulted from a phenomenon which cannot be predicted with the science 

and technology put into practical use at the time of purchase or contract 

(5) In case of integrating our products into your equipment, when damages can be hedged by the proper 

function or structure in the possession of your equipment which should be completed according to the 
concept of the de fact standard of industry. 

(6)  In  case of  that  the  faults  or  defects  are  resulted  from  un-proper application being  out  of  instruction of 

MITSUBISHI ELECTRIC CORPORATION. 

(7) In case that the faults or defects are resulted from force majeure such a fire or abnormal voltage and as 

an act of God such as natural calamity or disaster. 

3.

 

Exclusion of loss in opportunity and secondary loss from warranty liability 

Regardless  of  whether  in  guarantee  period  or  not,  MITSUBISHI  ELECTRIC  CORPORATION  shall  not  be 
liable  for  compensation of  damages  caused  by  any  cause  found not  be  the  responsibility of  MITSUBISHI 
ELECTRIC CORPORATION, loss in opportunity, lost profits incurred to the user by failures of MITSUBISHI 
ELECTRIC CORPORATION products, special damages and secondary damages whether foreseeable or not, 
compensation for accidents, and compensation for damages to products other than MITSUBISHI ELECTRIC 
CORPORATION products and other tasks. 

4.

 

Applications of products 

(1) The user is requested to confirm the standards, the regulations and the restrictions which should be applied, 

in case of utilizing this product and another one in combination. Also, the user is requested to confirm the 
suitability  of our  products  to  your  applied  system or  equipment  or  apparatus  by  yourself.  MITSUBISHI 
ELECTRIC CORPORATION shall not be liable for any suitability of our products to your utilization. 

(2)  This  product  has  been  designed  and  manufactured  for  application  in  general  industries,  etc.  Thus, 

application in which the life or an asset could be affected by special application such as medical system 
for life-sustaining, in nuclear power plants, power plants, aerospace, transportation devices (automobile, 
train, ship, etc.) shall be excluded from the application. In addition to above, application in which the life or 
an asset could be affected by potentially chemical contamination or electrical interference and also in which 
the circumstances and condition are not mentioned in this manual shall be excluded from the application.

 

Note even if the user wants to use for these applications with user’s responsibility, the user to be requested 
to approve the specification of MITSUBISHI ELECTRIC CORPORATION products and to contact to the 
technical section of MITSUBISHI ELECTRIC CORPORATION prior to such applications. If the user applies 
MITSUBISHI  ELECTRIC  CORPORATION  products  to  such  applications  without  any  contact  to  our 
technical section, MITSUBISHI ELECTRIC CORPORATION shall not be liable for any items and not be 
insured, independently from mentioned in this clause. 

(3) In using this product, the working conditions shall be that the application will not lead to a major accident 

even if any problem or fault occur, and that backup or duplicate system built in externally which should be 
decided based on the importance of facility, is recommended. 

(4) The application examples given in this manual are reference only and you are requested to confirm function 

and precaution for equipment and apparatus and then, use our products. 

(5) The  user  is  requested  to  understand  and  to  respect  completely  all  warning  and  caution  items  so  that 

unexpected damages of the user or the third party arising out of incorrect application of our products would 
not be resulted. 

 

Summary of Contents for MELPRO A Series

Page 1: ...1 JEP0 IL9556 Request Ensure that this Instruction Manual is delivered to the end users and the maintenance manager ...

Page 2: ...t Failure to do so may lead to the risk of electric shock equipment failure malfunction or failure to operate Ensure that the equipment is connected correctly in accordance with the details e g polarity or phase sequence shown on the connection terminals Otherwise there is the risk of failure burning malfunction or maloperation All power supplies and transformers to the equipment must be of suitab...

Page 3: ...el Otherwise there are risks of electric shock injury failure malfunction and maloperation Handling and maintenance of the equipment must only be carried out after gaining a thorough understanding of the instruction manual Otherwise there is the risk of electric shock injury failure malfunction or maloperation When replacing the equipment use a product of same model rating and specifications Other...

Page 4: ... special damages and secondary damages whether foreseeable or not compensation for accidents and compensation for damages to products other than MITSUBISHI ELECTRIC CORPORATION products and other tasks 4 Applications of products 1 The user is requested to confirm the standards the regulations and the restrictions which should be applied in case of utilizing this product and another one in combinat...

Page 5: ...ecommended to replace 2 Product supply including repair parts is not available after production is discontinued 6 Changes in product specification The specification given in the catalogue manuals or technical documents are subject to change without prior notice 7 Scope of service The technical service fee such as engineer dispatching fee is excluded in the price of our products Please contact to o...

Page 6: ...0Hz SW1 ON 60Hz SW1 OFF Display Self monitoring The RUN indicator green color is lighted in normal condition Operation indicator The indicator turns from black into orange color when the protection element is put into operation Manual resetting type Numerical display Indication item Range Voltage measurement 55 130V Pickup U Operation value setting Lo 1 60 100V Operating time setting 0 1 5 0s Freq...

Page 7: ...ncy Hz Peak to peak amplitude mm Acceleration m s2 Vibration time s Setting Maximum operation value and minimum operating time Input 110 of setting value Criteria No malfunction and no abnormal indication Forward backward Right left Up down 10 5 10 2 5 5 30 16 7 0 4 2 600 Shock Maximum acceleration 300m s2 Direction 3 directions in forward backward right left and up down Criteria No abnormality wh...

Page 8: ...t button While this button is pressed the relay function is locked and the RUN indicated LED is turned off RUN indicated LED Green It shows the result of self monitoring It lights up in normal condition Setting switches for operation value and time Set the setting values The black part is equal to maximum value but the numerical display is turned off Don t leave the switches with halfway state Tes...

Page 9: ...LEAR FAULT REC and hold for 5s or more then O K is displayed and all of the fault record are cleared 5 Display function of setting change When a setting is changed the setting value after changing is displayed for approx 3s preferentially 6 Detection function of frequency difference If there is a difference between setting frequency and injected frequency the alert message F E is displayed The det...

Page 10: ...d to zero from this state the b contacts remain open This relay has a built in capacitor to hold the power supply up to the operating time setting in case of power failure If the power outage lasts approximately 10 seconds or longer the capacitor runs out of charge and the RUN LED of the relay turns off When power is restored from this state it takes up to 2 seconds to resume operation and to rese...

Page 11: ...between all circuits and external box fixing screw for mounting for one minute and make sure that there is no problem Voltage applied terminals External box Fixing screw for mounting b Apply 2000V AC commercial frequency between separate circuits for one minute and make sure that there is no problem Voltage applied terminals 3 Operation characteristics test When the test voltage is gradually incre...

Page 12: ...h the electrical circuit e g substrate capacitor and transformer and be sure to hold the drawer handle or the frame part when transporting Touching the electrical circuit may cause electric shock or damage to the circuit Before the subunit is to be drawn out ensure that the following items are checked in order not to carry out the work in hot line condition Lock of the tripping circuit Turning off...

Page 13: ...the subunit with your finger hooked on the drawer handle on both sides Support the frame of subunit and pull out 2 Procedure of housing Drawer fixing screw Support the frame of subunit and place the subunit in the case along the rails Insert the subunit into the case horizontally Open the cover and tighten the drawer fixing screw Cover Cover ...

Page 14: ...up the upper side of the cover from the inner surface Then remove from the protrusion of the body Installing the cover As shown in Fig 4 7 mount the holes on the upper side of the cover to the protrusion of the body Then press down lightly on the lower side of the cover and mount to the protrusion of the body in the same way as above When replacing the cover during operation be careful not to touc...

Page 15: ...ed to the protection relay have limited lifetime which will bring the degradation to the relay The degree of degradation will be variable depending on the purpose aging usage environment and unevenness on the performance of each part Our company designs its products so that the recommended renewal period is 15 years or more However there may be some possibilities to occur any failures before reach...

Page 16: ...HEAD OFFICE 7 3 MARUNOUCHI 2 CHOME CHIYODA KU TOKYO 100 8310 JAPAN First edition Jan 2021 ...

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