Indverter V2 Manual
Issue 03 Dated 11 November 2009 S/w Ver 12.4 HEXMOTO
Controls Pvt.Ltd
23
Recommended Dynamic Braking Resistors
Model Type Braking Resistor
(100% braking Torque)
V2 2K2
315 Ohms/ 220W
V2 3K7
175 Ohms/ 400W
V2 5K5
120 Ohms/ 550W
V2 7K5
100 Ohms/ 750W
V2 11K
70 Ohms/ 1100W
V2 15K
47 Ohms/ 1500W
V2 18K5
38 Ohms/ 2000W
V2 22K
32 Ohms/ 2200W
* Important Notes on Braking resistor selection
Above selection is based on 700V DC braking voltage threshold, 100% braking torque
and 10% usage rate.
Wiring length between inverter and braking unit must be less than 5 Meters
Braking unit is in-built in all the Indverter V2 Type modules. Only braking resistor of
sufficient capacity must be connected to get good braking performance.
For very large inertial loads if the braking capacity is not sufficient, drive controller trips for
Over Voltage dCOV during deceleration.
Important Notes on Power wiring
For cable connections from drive to motor, use 3-Core shielded cable or a cable running through
metal conduit to reduce EMI Noise from the drive output affecting other instruments in the panel.
For input contactors, use R-C Snubbers across the Contractor coil to prevent malfunctioning of
drive control circuitry due to Contactor operation within the panel
For long cables more than 20 meters, it is recommended to use optional AC reactor at drive
output.
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