Technical data

4
Manual – Gear Units and Gearmotors
Contents
1 Introduction...................................................................................................................... 6
1.1 The SEW-EURODRIVE Group of Companies ....................................................... 6
1.2 Products and systems from SEW-EURODRIVE .................................................... 7
1.3 Additional documentation ....................................................................................... 9
2 Product Description ...................................................................................................... 11
2.1 General notes on product description .................................................................. 11
2.2 Energy efficient motors (→ GM)........................................................................... 14
2.3 Corrosion and surface protection ......................................................................... 15
2.4 Extended storage ................................................................................................. 17
2.5 Drives for applications in hygienic areas .............................................................. 18
3 Unit Designations and Versions................................................................................... 20
3.1 Unit designations for gear units and options ........................................................ 20
3.2 Unit designations for components on the input side............................................. 22
3.3 Unit designations for the swing base.................................................................... 22
3.4 Example for the unit designation of a gear unit .................................................... 23
3.5 Unit designations for AC motors and options ....................................................... 24
3.6 Example for the unit designation of a gearmotor.................................................. 26
3.7 Examples for the unit designation of AC (brake) motors...................................... 27
3.8 Unit designations MOVIMOT® standard design .................................................. 28
3.9 Unit designations for MOVIMOT® with integrated AS-interface........................... 29
3.10 Example for the unit designation of a MOVIMOT® gearmotor............................. 30
3.11 Gearmotor types................................................................................................... 31
3.12 Types of components on the input side................................................................ 39
3.13 Types of AC (brake) motors (→ GM) ................................................................... 40
4 Project Planning for Drives........................................................................................... 41
4.1 Additional documentation ..................................................................................... 41
4.2 Drive selection data.............................................................................................. 42
4.3 Project planning sequence ................................................................................... 43
5 Project Planning for Gear Units ................................................................................... 44
5.1 Efficiency of gear units ......................................................................................... 44
5.2 Oil compensator ................................................................................................... 46
5.3 Multi-stage gearmotors (→ GM) ........................................................................... 47
5.4 Service factor ....................................................................................................... 48
5.5 Overhung and axial loads (→ GM, → MM, → GK)............................................... 51
5.6 RM gear units ....................................................................................................... 55
5.7 Drives for overhead trolley systems ..................................................................... 58
6 Project Planning for Components on the Input Side ................................................. 59
6.1 Gear units with IEC or NEMA adapter AM (→ GK) .............................................. 59
6.2 Adapter AQ for servomotors (→ GK) ................................................................... 62
6.3 Adapter AR with torque limiting coupling (→ GK) ................................................ 65
6.4 Adapter with hydraulic centrifugal coupling AT (→ GK) ....................................... 70
6.5 Project planning for helical-bevel gear units on swing base MK (→ GK) ............. 75
6.6 Input shaft assembly AD (→ GK) ......................................................................... 79
7 Project Planning for AC Motors ................................................................................... 84
7.1 Possible motor options (→ GM, → MM)............................................................... 84
7.2 Standards and regulations (→
GM)...................................................................... 85
7.3 Circuit breakers and protective equipment........................................................... 87
7.4 Electrical characteristics (→ GM, → MM)............................................................. 90
7.5 Thermal characteristics (→ GM, → MM) .............................................................. 93
7.6 Starting frequency (→ GM, → MM)...................................................................... 96
7.7 Mechanical characteristics (→ GM, → MM)......................................................... 98
7.8 Overhung loads (→ GM, → MM).......................................................................... 99
7.9 US market (→ GM, → MM) ................................................................................ 101
7.10 Brakes (→ GM) .................................................................................................. 103
7.11 Block diagrams of brake control systems (→ GM) ............................................. 108
7.12 Plug connectors (→ GM).................................................................................... 114
7.13 Encoders and prefabricated cables for encoder connection (→ GM) ................ 117
7.14 Forced cooling fan.............................................................................................. 125
7.15 Additional mass Z, backstop RS and protection canopy C (→ GM)................... 126
7.16 Low-noise fan guard........................................................................................... 127
7.17 MOVIMOT® (→ MM).......................................................................................... 128
7.18 MOVI-SWITCH® (→ GM) .................................................................................. 137
7.19 WPU smooth multi-speed unit (→ GM) .............................................................. 141
8 Project Planning for AC Motors with Inverter ........................................................... 142
8.1 Operation on inverter.......................................................................................... 142
8.2 Drive properties .................................................................................................. 144
8.3 Selecting the inverter.......................................................................................... 145