Shihlin Inverter Introduction
Inverter Introduction
36
3.7.3 Retrograde Brake Resistor
Inverter type
Retrograde brake resistor specification
SF-040-1.5K-GT
200W 320Ω or above
SF-040-22K-GT(S)
300W 160Ω or above
SF-040-3.7K-GT
500W 120Ω or above
SF-040-5.5K-GT
1000W 75Ω or above
SF-040-7.5K-GT
1200W 75Ω or above
SF-040-11K-GT
2400W 50Ω or above
SF-040-15K-GT
3000W 40Ω or above
SF-040-18.5K-GT
4800W 32Ω or above
SF-040-22K-GT
4800W 27.2Ω or above
Note: 1.For brake resistor whose built-in brake unit offers model options, the capacity of the
regenerative brake is based on the condition that the regenerative brake duty is 10% (when
braking lasts for 5 seconds, the machine has to be stopped for another 45 seconds must be
stopped for heat dissipation). For models without a built-in brake unit, the capacity of the
regenerative brake is based on the brake duty of the selected brake unit. The regenerative brake
resistor wattage can be reduced according to the user’s application (quantity of heat) and the
regenerative brake duty. But the resistance must be larger than the value (ohms) listed in the
above table (otherwise the inverter will be damaged).
2. In case frequent start and stop operations are required, a larger regenerative brake duty should
be set. Meanwhile, a large brake resistor should be employed correspondingly. Please refer to
Section 3.4.5 and 3.7.3 for selecting and purchasing the regenerative brake resistors. Please feel
free to contact us if there is any problem regarding the selection of brake resistors.
3. Frame D, E and F corresponded inverters have no built-in brake unit. Please select and
purchase an external brake unit according to the brake unit section in the manual.