Braking/energy dump circuits (for 48VDC system)
The module can be used to discharge and dissipate extra voltage and energy from motors to protect the motor controllers and the power supply. It is suited to 48VDC system with a trigger point at 55VDC.
Note: The module must be installed in a closed enclosure.
Features:
- Used for regenerative energy dissipation.
- Triggering Voltage level at 55VDC.
- Built in 40Watts 25 Ohm braking resistors.
- Aluminium cooling plate for higher dissipation capability.
- Easy to setup, simply connect it with 2 wires to the power supply terminals.
- Visual LED light signal on braking action.
Description
All type of electric motors acts as a generator and generating energy and voltage in reverse operation mode when the motor shaft is rotated with an external force or when it is braking.
This energy is seen as extra voltage and is needs to be absorbed by the power supply. Beyond a certain level, the power supply and its buffer capacitors may be unable to handle and absorb this extra voltage. Thus the voltage in the power supply may start to rise. The rising of the voltage could be infinite in theory and too much voltage rising may damage both the power supply and the motor drive when it exceeds the rating of these devices.
The braking resistor can be used to discharge and dissipate this extra voltage and energy and to protect the motor controllers and the power supply.
The working of the braking circuit is simple, it continuously measures the voltage of the power supply and if it rises above a set point (factory set), the circuit triggers a MOSFET transistor connected to a power resistor. The resistor then shunts the power supply rails and dissipates the extra voltage as heat. When the Voltage drops below the set point the MOSFET and of the braking circuit closes, removing the power resistor from the power supply rails.
Faulty Goods and Warranty
Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.
Our standard warranty period is 12 months from the date of purchase unless stated otherwise.
Other warranty periods:
Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years
Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.
Returns Policy
If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.
Please note:
- The product returned will attract a 20% restocking fee.
- The customer must pay the delivery costs.
- Non standard, custom made or a specially manufactured or imported products are not returnable.
- Semiconductors, books and software are not refundable
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