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- Up to 100hp : 100% Duty -
In applications with extended braking times, high horsepower, or where frequent regeneration occurs, the M3345 is the most economical solution due to substantial energy savings! When a resistive absorber kit is used, the regenerated energy is dissipated as heat and the energy is wasted. With Bonitron’s M3345 Regen Module, the regenerated energy is returned to the input AC line at 95% efficiency. Substantial energy savings result as the regenerated energy can now be used to power other equipment and the cooling requirements for the control room are reduced.
Also, today’s system integrators are demanding smaller and smaller variable frequency drive packages. Therefore, Bonitron offers the standard Line Regen in a smaller enclosure. The tall and thin “servo” or “bookshelf” chassis mirrors the latest in drive designs. The M3345 Type-1 “bookshelf” chassis offers the same protection and operation as the Bonitron Type-13 Regen in the convenience of a small package. The Type-1 chassis is an ideal solution for applications where space is limited.
Typical applications which involve regeneration to the drive are:
- Stopping high inertia loads such as saws, fans and centrifuges
- Eccentric loads such as slicers, punch presses, stamping operations, tumblers and dryers
- High cycle loads such as machine tool, stackers, and pick and place systems
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Savings Calculator
$ Savings = (Drive hp) x (Duty Cycle) x (Days of operation) x (Hours operational per day)
x (Cost per kWh) x (0.746 kW/hp)
For Example:
A 45 A, Model M3345-44SMF0, is used for braking a high inertia centrifuge with these characteristics:
- 50 hp peak, 25 hp avg. during deceleration; 10 hours a day, 33% duty cycle, 6 cents per kWh:
$ Savings = (25) x (.33) x (365) x (10) x (.06) x (.746)= $ 1348.00 per year
The M3345 Regen module reduces the centrifuge’s braking time from 300 to 90 seconds, resulting in 30% more throughput and saves money! |
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Features
- Continuous Braking Duty, 0-120 Amps single unit, 230-460AC line voltages available
- Returns power to the line at 95% efficiency
- Interlock protected enclosures available
- Compatible with any variable speed drive with DC bus terminals
- Minimal connections and wall or cabinet mountable enclosures available
- Includes AC line and DC bus fusing
- Master / Slave selectable on 60, 90, and 120 Amp modules
- 5-wire installation
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Advantages
- Able to handle 100% duty cycle applications
- TYPE-13 enclosures for use in environments that cannot support TYPE-1 enclosures
- Easily configured for integration into existing safety configurations
- Can be installed as retrofit, with initial installation, or to an existing cabinet or drive location
- Fits most VFD electrical configurations
- High efficiency means low enclosure heating, resulting in reduced cooling over resistance braking
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Benefits
- Isolation transformers and input reactors are not required
- Minimizes downtime by removing overvoltage trips
- The Module quickly pays for itself in mid to high duty applications due to energy being returned to the utility instead of being wasted as heat
- Higher cycle rates equal more production with lower energy cost
- Does not require line chokes, RFI filters, or precharge modules
- Reduces installation complications with simple, 5-wire installation
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