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Altivar Process 900 Variable Speed Drives - Page 46 Options

46

Presentation

Braking units allow Altivar Process drives to operate while braking to a standstill or during generator operation, by dissipating the energy in the braking resistor. ATV930U07M3...D45M3, ATV930U07N4...C22N4, ATV930D15Y6...D90Y6 and ATV950U07N4...D90N4 drives have a built-in dynamic brake transistor. For ATV930D55M3C...D75M3C, ATV930C11N4C...C16N4C and ATV930C25N4C...C31N4C drives, a braking unit must be used. Braking units provide IP 20 protection. Thermal protection is given by an integrated temperature probe. Applications High-inertia machines, machines with slow and fast cycles, high-power machines performing vertical movements.

References

M1 3 L1 L2 L3

Braking unit Braking resistor ATV930D55M3C...D75M3C ATV930C11N4C...C16N4C ATV930C25N4C...C31N4C

600293

Presentation, references

Variable speed drives

Altivar Process ATV900

Option: Braking units

Presentation: page 8 Variable speed drives: page 18 Configuration and runtime tools: page 28 Combinations: page 32 Dimensions: page 76 For drives Power Losses Cable (drive-braking unit) Cable (braking unit- resistors) Percentage of conduction time Minimum resistor value Reference Weight Conti- nuous Maximum At continuous power Cross- section Maximum length Cross- section Maximum length kW W mm m mm m % Ohms kg/ lb

Supply voltage: 200240 V 50/60 Hz

ATV930D55M3C ...D75M3C 60 80 400 3 x 120 10 5% at 150 kW 1.4 VW3A7106 28.000/ 61.729 15% at 120 kW 50% at 95 kW

Supply voltage: 380480 V 50/60 Hz

ATV930C11N4C ...C16N4C 100 160 400 2 x 120 5 5% at 320 kW 2.5 VW3A7105 28.000/ 61.729 15% at 250 kW 50% at 200 kW ATV930C25N4C ATV930C31N4C 200 420 550 (1) (1) 2 x 95 50 5% at 420 kW 1 VW3A7101 30.000/ 66.139 15% at 320 kW 50% at 250 kW (1) For the ATV930C25N4C variable speed drive, the braking unit is connected to the drive with internal connections.

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