Inovance MD500

8 Specifications and Model Selection
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117
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8
MD500 Model
Applicable
Motor
(kW)
Braking Unit
125% Braking Torque
(10% ED, Max. 10s)
Remark
Min.
Resistance
of Braking
Resistor
(Ω)
Model QTY Specication QTY
MD500T200G(-L)
200 MDBU-200-B 2 19000W 4.5Ω 2 Input voltage ≤ 440 VAC 2.5 × 2
200 MDBU-200-C 2 19000W 5.8Ω 2 Input voltage > 440 VAC 3.0 × 2
MD500T220G(-L)
220 MDBU-200-B 2 21000W 4.1Ω 2 Input voltage ≤ 440 VAC 2.5 × 2
220 MDBU-200-C 2 21000W 5.3Ω 2 Input voltage > 440 VAC 3.0 × 2
MD500T250G(-L)
250 MDBU-200-B 2 24000W 3.6Ω 2 Input voltage ≤ 440 VAC 2.5 × 2
250 MDBU-200-C 2 24000W 4.6Ω 2 Input voltage > 440 VAC 3.0 × 2
MD500T280G(-L)
280 MDBU-200-B 2 27000W 3.2Ω 2 Input voltage ≤ 440 VAC 2.5 × 2
280 MDBU-200-C 2 27000W 4.1Ω 2 Input voltage > 440 VAC 3.0 × 2
MD500T315G(-L)
315 MDBU-200-B 3 20000W 4.3Ω 3 Input voltage ≤ 440 VAC 2.5 × 3
315 MDBU-200-C 3 20000W 5.5Ω 3 Input voltage > 440 VAC 3.0 × 3
MD500T355G(-L)
355 MDBU-200-B 3 23000W 3.8Ω 3 Input voltage ≤ 440 VAC 2.5 × 3
355 MDBU-200-C 3 23000W 4.9Ω 3 Input voltage > 440 VAC 3.0 × 3
MD500T400G(-L)
400 MDBU-200-B 3 26000W 3.4Ω 3 Input voltage ≤ 440 VAC 2.5 × 3
400 MDBU-200-C 3 26000W 4.3Ω 3 Input voltage > 440 VAC 3.0 × 3
MD500T450G(-L)
450 MDBU-200-B 3 29000W 3.0Ω 3 Input voltage ≤ 440 VAC 2.5 × 3
450 MDBU-200-C 3 29000W 3.9Ω 3 Input voltage > 440 VAC 3.0 × 3
Note
● Minimum resistance supports operating condition with ED of 10% and longest time for single
braking of 10s.
● Default initial braking voltage for built-in breakers is 760 V when the input voltage is no more
than 440 VAC. Default initial braking voltage is 670 V for MDBUN-60-T, MDBUN-90-T, and
MDBU-200-B, and 760 V for MDBUN-60-5T, MDBUN-90-5T, and MDBU-200-C when the input
voltage is above 440 VAC. Resistance of braking resistor can be adjusted with the initial braking
voltage.
● The preceding table is for a reference only. You can select resistance and power of braking
resistor based on actual needs. Resistance must not be lower than the reference value. Power
may be higher than the reference value. Selection of braking resistor model is determined by
generation power of motor and is also related to system inertia, deceleration time and potential
energy load. For systems with high inertia, and/or short deceleration time, and/or frequent
braking, select a braking resistor with higher power and lower resistance value.