SIEMENS
Siemens MD 50.8 · 2017
2
2/2
Determining the drive data
2/2
Overview
2/2
Checklist
2/4
Design in accordance with VDI 3643
2/6
Configuring a gearbox
2/6
Service factor
2/6
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Determining the required service factor
2/6
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Determining the load classification
2/6
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Mass acceleration factor
2/7
Required torque
2/7
Input speed
2/8
Shaft load and bearing service life
2/8
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Available radial force
2/9
•
Permissible radial force
2/9
•
Radial force conversion for out of center
force application point
2/9
•
Definition of the force application point
2/10
Configuring a three-phase motor
2/10
Determining the duty type
2/11
Switching frequency
2/12
Additional moments of inertia
2/12
Line feeder cables
2/12
•
Undervoltage
2/12
Motor protection
2/12
•
Current-dependent protective devices
2/12
•
Temperature-dependent protective
devices
2/12
Coolant temperature and installation
altitude
2/13
Degrees of protection
2/13
Cooling and ventilation
2/13
•
Forced ventilation
2/14
Configuring a brake
2/14
Overview
2/14
Determining the braking torque
2/14
Braking torques as a function of the
speed and permissible speed limits
2/14
Braking energy per braking operation
2/14
Service life of the brake lining
2/14
Brake service life
2/15
Brake control
2/15
•
Definition of switching times (VDI 2241)
2/15
•
Fast brake application
2/15
•
Fast brake release
2/16
Brake switching time
2/16
Braking distance and positioning accuracy
2/16
Cyclic duration factor
2/17
Configuring a motor for inverter
operation
2/17
Operation of geared motors on a
frequency inverter
2/17
Motor characteristic
2/17
Utilization in accordance with temperature
class F
2/18
Permissible voltage stress
2/18
Bearing currents
2/18
Mechanical stress, grease service life
Configuring guide
© Siemens AG 2017