Altivar Process 900 Variable Speed Drives Page 38 Options

38 2 3 4 5 6 7 8 9 10 2 3 4 5 6 7 8 9 10 References for a medium braking cycle For drives Degree of protection of the resistor Ohmic value at 20 C/ 68 F Average power available at 50 C/ 122 F (1) Quantity required per drive Reference Weight & kW kg/ lb Supply voltage: 200240 V or 380480 V 50/60 Hz ATV930U07M3 ATV930U07N4...U15N4 IP20 100 0.1 1 VW3A7730 1.5/ 3.3 ATV930U15M3...U22M3 IP20 60 0.16 1 VW3A7731 2.0/ 4.4 ATV930U30M3...U40M3 IP20 28 0.3 1 VW3A7732 3.0/ 6.6 ATV930U55M3U75M3 IP20 16 1.1 1 VW3A7733 4.0/ 8.8 ATV930D11M3 IP20 10 1.1 1 VW3A7734 5.5/ 12.1 ATV930D15M3 IP20 8 1.1 1 VW3A7735 5.5/ 12.1 ATV930D18M3...D22M3 IP23 5 1.9 1 VW3A7736 18.0/ 39.7 ATV930D30M3...D45M3 IP23 2.5 3.2 1 - 20.0/ 44.0 ATV930U22N4...U40N4 IP20 100 0.26 1 VW3A7740 2.5/ 5.5 ATV930U55N4...U75N4 IP20 60 0.5 1 VW3A7741 4.5/ 9.9 ATV930D11N4...D15N4 IP20 28 1.1 1 VW3A7742 4.0/ 8.8 ATV930D18N4...D30N4 IP20 16 2.2 1 VW3A7743 7.0/ 15.4 ATV930D37N4...D45N4 IP20 10 3.4 1 VW3A7744 11.5/ 25.4 ATV930D55N4 IP23 8 3.8 1 VW3A7745 23.0/ 50.7 ATV930D75N4...D90N4 IP23 5 6.9 1 VW3A7746 27.0/ 59.5 ATV930C11N4C...C16N4C IP23 2.5 11 1 VW3A7747 43.0/ 94.8 ATV930D55M3C...D75M3C IP23 1.4 5.1 1 25.0/ 55.1 (1) Load factor for resistors: The value of the average power that can be dissipated at 50 C / 122 F from the resistor into the casing is determined for a load factor during braking that corresponds to the majority of normal applications: - Normal duty: 4 s braking with a 1.35 Tn braking torque for a 40 s cycle - Heavy duty: 4 s braking with a 1.65 Tn braking torque for a 40 s cycle References (continued) Variable speed drives Altivar Process ATV900 Option: Braking resistors Overview: page 8 Variable speed drives: page 18 Configuration and runtime tools: page 22 Combinations: page 26 Dimensions: page 66 Medium Cycle t = 40 s t1 = 0 s t2 = 4 s Tn1 = 0 Tn2 = 1.35 x Tn t: period Tn1: braking torque Tn2: braking torque Tn: nominal torque Percentage of rating Time t1 t2 t Tn2 Tn1 Torque Power

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