Configuration Manual Synchronous Motors 1FK7 - Siemens ...

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Motor Description Cooling, 1FK7 1.4 Cooling, 1FK7 Cooling version Natural cooling The cooling version is defined at the 9th position of the motor Order No. (MLFB). 1FK7 motors can be supplied in the natural cooling version: Table 1-5: Cooling versions of 1FK7 motors 1FK7�� A ↓ �� Natural cooling Operating temperature range: -15 °C to +40 °C (without any restrictions). The power loss is dissipated through radiation and natural convection which means that adequate heat dissipation must be ensured by suitably mounting the motor (refer to Chapter "Motor components (options)"). All of the Catalog data refer to an ambient temperature of 40 °C, mounted so that the motors are not thermally insulated and an installation altitude up to 1000 m above sea level. If other conditions prevail (ambient temperature > 40 °C or installation altitude > 1000 m above sea level), the permissible torque/power must be defined using the factors from the following table (torque/power reduction according to EN 60034-6). Ambient temperatures and installation altitudes are rounded-off to 5 °C or 500 m respectively. Table 1-6: Power de-rating as a function of the installation altitude and the ambient temperature Installation altitude above sea level [m] Ambient temperature in °C < 30 30–40 45 50 55 60 1000 1.07 1.00 0.96 0.92 0.87 0.82 1500 1.04 0.97 0.93 0.89 0.84 0.79 2000 1.00 0.94 0.90 0.86 0.82 0.77 2500 0.96 0.90 0.86 0.83 0.78 0.74 3000 0.92 0.86 0.82 0.79 0.75 0.70 3500 0.88 0.82 0.79 0.75 0.71 0.67 4000 0.82 0.77 0.74 0.71 0.67 0.63 1FK7 Synchronous Motors 1-8 Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
1.5 Coupling output 1.5.1 Description of functions Motor Description Coupling output After investigating various coupling outputs for servomotors in conjunction with Siemens drive converters, it was seen, that in many cases, the coupling outputs were the cause of vibration problems. In order to achieve optimum drive output characteristics, ROTEX-GS couplings from the KTR company should be used. The advantages of ROTEX-GS couplings include: • 2 to 4x torsional stiffness of a belt-driven gearbox • No intermeshing teeth (when compared to belt gearboxes) • Low moment of inertia • Good control behavior When it comes to mounting, the clamping hub without key is considered to be adequate up to a coupling size of 38 and up to the specified torques that can be transferred (refer to the appropriate motor configuration manual). It must be carefully noted that the friction locked torque must always be adequately dimensioned according to the assignment to the particular motor frame size. The accelerating torque also has to be transferred. From a coupling size of 42 or as an alternative to the clamping hub, we can recommend the version with clamping ring hub. This means that the maximum coupling torque can be almost reached. The investigations extend to include the vibration characteristics and behavior. The couplings assigned to the motors permit higher speed control loop gains and therefore result in the highest possible KV values and uniform motion. ROTEX GS couplings are available with 4 different plastic pinion gears with various Shore hardnesses: 98 or 95 Shore A (average) Alternatively: 92 Shore A Alternatively: 80 Shore A (soft) Alternatively: 64 Shore D (hard) The adaptation to the existing machine masses and stiffness, which becomes possible, must be determined, taking into account the mounted mechanical system. 1FK7 Synchronous Motors Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1 1-9
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Page 4 and 5: Safety information/instructions Thi
Page 6 and 7: Foreword Target group of the Config
Page 8 and 9: Foreword Table -3: ESDS information
Page 10 and 11: Foreword 1FK7 Synchronous Motors vi
Page 12 and 13: Table of Contents 4.3 Holding brake
Page 14 and 15: Motor Description Technical data Be
Page 16 and 17: Motor Description Selection and ord
Page 18 and 19: Motor Description Selection and ord
Page 22 and 23: Motor Description Coupling output 1
Page 24 and 25: Motor Description Armature short-ci
Page 26 and 27: Motor Description Armature short-ci
Page 28 and 29: Electrical Connections Rotating the
Page 30 and 31: Technical Data and Characteristics
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Technical Data and Characteristics
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Motor Components (Options) Thermal
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Motor Components (Options) Encoders
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Motor Components (Options) Holding
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Gearboxes Selecting/dimensioning ge
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Gearboxes Selecting/dimensioning ge
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Gearboxes Helical and angled gearbo
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Gearbox Planetary gearbox 5.3.2.2 B
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Gearbox Planetary gearbox 5.3.2.4 S
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Gearbox Planetary gearbox 5.3.3 LP+
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Dimension Drawings 1FK7 CT 6.1 1FK7
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Dimension Drawings 1FK7 CT Fig. 6-3
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Dimension Drawings 1FK7 HD 6.2 1FK7
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Dimension Drawings 1FK7 HD Fig. 6-1
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Dimension Drawings 1FK7 HD Fig. 6-1
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Dimension Drawings 1FK7 motors with
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Appendix References Manufacturer/Se
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Appendix References /APH7M/ Configu
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Index I-2 1FK7 Synchronous Motors C
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