Altivar Process 900 Variable Speed Drives Page 50 Options

50 References (continued) Variable speed drives Altivar Process ATV900 Option: Braking resistors Presentation: page 8 Variable speed drives: page 18 Configuration and runtime tools: page 28 Combinations: page 32 Dimensions: page 76 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 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 ATV950U07N4U15N4 ATV950U07N4EU15N4E IP20 100 0.1 1 VW3A7730 1.500/ 3.307 ATV930U15M3...U22M3 IP20 60 0.16 1 VW3A7731 2.000/ 4.409 ATV930U30M3...U40M3 IP20 28 0.3 1 VW3A7732 3.000/ 6.614 ATV930U55M3U75M3 IP20 16 1.1 1 VW3A7733 4.000/ 8.818 ATV930D11M3 IP20 10 1.1 1 VW3A7734 5.500/ 12.125 ATV930D15M3 IP20 8 1.1 1 VW3A7735 5.500/ 12.125 ATV930D18M3...D22M3 IP23 5 1.9 1 VW3A7736 18.000/ 39.684 ATV930D30M3...D45M3 IP23 2.5 3.2 1 VW3A7737 20.000/ 44.092 ATV930U22N4...U40N4 ATV950U22N4...U40N4 ATV950U22N4E...U40N4E IP20 100 0.26 1 VW3A7740 2.500/ 5.512 ATV930U55N4...U75N4 ATV950U55N4...U75N4 ATV950U55N4E...U75N4E IP20 60 0.5 1 VW3A7741 4.500/ 9.921 ATV930D11N4...D15N4 ATV950D11N4...D15N4 ATV950D11N4E...D15N4E IP20 28 1.1 1 VW3A7742 4.000/ 8.818 ATV930D18N4...D30N4 ATV950D18N4...D30N4 ATV950D18N4E...D30N4E IP20 16 2.2 1 VW3A7743 7.000/ 15.432 ATV930D37N4...D45N4 ATV950D37N4...D45N4 ATV950D37N4E...D45N4E IP20 10 3.4 1 VW3A7744 11.500/ 25.353 ATV930D55N4 ATV950D55N4 ATV950D55N4E IP23 8 3.8 1 VW3A7745 23.000/ 50.706 ATV930D75N4...D90N4 ATV950D75N4...D90N4 ATV950D75N4E...D90N4E IP23 5 6.9 1 VW3A7746 27.000/ 59.525 ATV930C11N4C...C16N4C IP23 2.5 11 1 VW3A7747 43.000/ 94.799 ATV930D55M3C...D75M3C IP23 1.4 5.1 1 VW3A7748 25.000/ 55.116 ATV930C22N4 ATV930C25N4C...C31N4C IP23 1.4 29 1 VW3A7757 121.000/ 69.934 (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

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