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Model M3612EC Common DC Bus High Ripple Capacitor with Cooling Customer Reference Manual ● ● Web: www.bonitron.com Tel: 615-244-2825 Email: info@bonitron.com...
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Bonitron has seen thousands of products engineered since 1962 and welcomes custom applications. With engineering, production, and testing all in the same facility, Bonitron is able to ensure its products are of the utmost quality and ready to be applied to your application.
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RIVE PTIONS In 1975, Bonitron began working with AC inverter drive specialists at synthetic fiber plants to develop speed control systems that could be interfaced with their plant process computers. Ever since, Bonitron has developed AC drive options that solve application issues associated with modern AC variable frequency drives and aid in reducing drive faults.
1.2. URPOSE AND COPE This manual is a user’s guide for the Model M3612EC Capacitor Bank. It will provide you with the necessary information to successfully install and use the M3612EC module in your application. In the event of any conflict between this document and any publication and/or documentation related to the application, the latter shall have precedence.
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User’s Manual RODUCT ESCRIPTION The M3612EC is a filter capacitor bank for a common DC bus drive systems. The drives can be either servo or variable frequency drives intended for use with common bus capacitors. 2.1. ELATED RODUCTS 2.1.1. OMMON IODES ...
The Base Model Number for these Capacitor Banks is M3612EC. OLTAGE ATING A 1-digit code represents the AC system voltage to the M3612EC module. The voltage rating must be selected for the system voltage that will be applied. Table 2-1: Voltage Rating...
User’s Manual 2.4. ENERAL RECAUTIONS AND AFETY ARNINGS H I G H V O L T A G E S M A Y B E P R E S E N T N E V E R A T T E M P T T O O P E R A T E O R S E R V I C E T H I S E Q U I P M E N T W I T H A C C E S S D O O R S O R C O V E R S O P E N E D DANGER! ...
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Once the installation site has been selected as outlined above, the unit should be mounted in place. The M3612EC must be properly oriented for proper heat flow through the units. The M3612EC must be mounted with the rear surface of the unit to the mounting surface. Unit should be mounted vertically as shown in Example A of Figure 3-1.
M3612EC 3.4. IRING AND USTOMER ONNECTIONS Be sure to review all AC Drive and system documentation for attached equipment as well as the information listed below before proceeding. Connection points and terminal numbers of the AC Drive will be found in the documentation provided with those units.
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VFD, DC link fusing may not be necessary. Semiconductor fuses such as the A70Q or FWP are recommended for this purpose. Do not connect the output of the M3612EC to the braking terminals of the drive. This can also cause severe damage to the drive.
PERATION 4.1. UNCTIONAL ESCRIPTION The M3612EC is a capacitor bank with an integral bleeder to build a DC bus if bus filter capacitance is required. 4.2. TARTUP This section covers basic checks and procedures that may be used when performing a startup with a M3612EC.
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Failure to comply may result in personal injury, death, and/or equipment DANGER! damage! Feel free to call Bonitron at any time if the equipment appears to be having problems. 5.3.1. TTACHED DRIVE DOES NOT COME ON ...
M3612EC – B 5.4. ECHNICAL EFORE YOU CALL OR EMAIL If technical help is required, please have the following information when contacting us: Serial number of unit Name of original equipment supplier (if available) Record the line voltage ...
Table 6-3 lists the maximum Watt Loss generated by the listed units. When installing M3612EC units in an additional enclosure, consideration should be given to internal temperature rise. The Watt Loss rating in following table is based upon the maximum capability of each unit.
M3612EC Figure 6-1: M3612EC K7 Chassis Dimensional Outline 6.4. LOCK IAGRAMS Figure 6-2: Functional Block Diagram 3612EC DC LINK 3 PHASE M3713SC BANK THREE PHASE POWER SUPPLY DC INPUT DC INPUT DC INPUT MOTOR MOTOR MOTOR CONTINUOUS COMMON DC BUS POWER SUPPLY...
OURCE MPEDANCE The M3612EC is intended to be used with an input reactor for the reduction of peak input currents and bus voltage ripple and ripple current. The reactor adds inductive impedance to the circuit to reduce these factors, and adds to the total input impedance of the system.
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M3612EC Check the voltage at the input of the reactor (transformer side). If the voltage stays above 90% of the nominal voltage, you can operate your system without the reactor. If the voltage drops below 90% of the nominal voltage, you may need to upsize your input transformer or get a transformer with lower impedance for proper operation.
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