the Inverter Motor Compact, Efficient, Dynamic - Optimized!

Transcription

1 We present the Inverter Motor Compact, Efficient, Dynamic -!

2 Think out of the box fill the void! Standard AC motors: for mains operation (nominal frequency: 50/60Hz) For inverter operation with special isolated windings Servo motors: for high performance servo applications Costs Mains operation Inverter operation Servo operation 2 Performance

3 Think out of the box Develop an Inverter Duty Motor! Inverter Duty Motors: for inverter duty Basis: Classical AC motor Not suitable for mains operation Costs NEW Mains operation Inverter operation Servo operation 3 Performance

4 Standard AC Motor Designed for across the line starting Designed for use at normal speed 3:1 speed range Designed for continuous duty Torque drops off after 60 Hz Not Compact 4

5 Synchronous Servo Motor Higher Efficiency More Compact Lower inertia Field weakening range is smaller High Power density Low Field Weakening 5

6 Asynchronous Servo Motor Low Inertia Designed for high dynamic applications Better balanced for highest speeds High Dynamic response Very High Overload capacity High Power Density High Field Weakening 6

7 New Inverter Motor 24:1 Speed range w/o field weakening 1 to 2 frame sizes smaller than standard motor 4 pole motor optimized for 120 hz operation Designed for variable speed applications High Dynamic Response High Field weakening High power density 7

8 NEMA AC Motor Inverter Motor Synchronous Servo Motor Asynchronou s Servo Motor 8 Dynamic Average High Very High High Response Mass Inertia Average Low Very Low Low Overload Average High Very High Very High Capacity Power Average High Very High High Density Field Average High Low High Weakening Encoder N/A Inc Encoder Resolver Inc Encoder Resolver Inc Encoder Resolver SIN/COS Enc Absolute Enc SIN/COS Enc Absolute Enc SIN/COS Enc Absolute Enc

9 Performance Torque Max. torque Voltage Y400V 230V AC motor (60Hz) AC motor MF Power 60 Hz 120 HzFrequency Nominal torque 20 Hz 60 Hz 120 Hz Frequency ( speed) 60 Hz 120 HzFrequency 9

10 Construction Shaft sealing: Material FKM (Viton) with reduced spring force Terminal box: Adjustment of clamping bolts (higher ampacity) Bearing: from servo motors (HTgrease) 10

11 Benefits: Compact and dynamic Up to 2 sizes smaller than an IE2-motor of the same power Highly dynamic due to its low inertia Nominal power kw (HP) IE1 (Std) IE2 (Std) MF 0.55 (0.74) (1.0) (1.5) (2.0) (3.0) (4.0) (5.4) (7.4) (10.0) (14.7) (20.1) (25.0) (30.0) Comparison of shaft height per motor power 11

12 Your benefits: Flexible due to a wide speed setting range Wide speed setting range of 1:24 (without field weakening) Full torque over a broad speed range also without a separate fan M 2 [Nm] More flexibility n 2 [r/min] IE2-geared motor (4-poled) with ratio i=10 With integrated fan: The torque must be reduced below 60 r/min Otherwise: Separate fan Inverter Motor with ratio i=23 Integrated fan: The torque must be reduced below 25 r/min Separate fan only necessary for constant torque below 25r/min Increased setting range down to 6 r/min 12

13 The applications For variable-speed-applications, e.g.: Turn tables Storage and retrieval units Lift tables Conveyors with lower duty cycle Pumps/fans Rapid action doors... Space and cost saving alternative to inverter-driven IE2-motors (ErP-directive) 13

14 Textile machine Winding Application Customer requirement: Fulfillment of the efficiency-directive while using no more space Solution: Inverter Motor Success factors: Compactness: Conventional IE2-motors are bigger and do not fit in the machine. A modification of the machine was not necessary. Inverter Motors are not affected by the efficiency-directive. Meeting the ErP-directive without a bigger motor size makes the MFmotor to the perfect solution for the customer. 14

15 Heavy duty twister 15 Winding machine for production of rope yarns and industrial fibers Customer requirement: Fulfillment of the efficiency-directive while using no more space (e. g. in the USA, EU) Compactness Success factors: Robust and small size Because of ErP these motors would have been with a bigger volume and there wasn t space. Inverter Motor can be used all over the world. Especially in USA, where IE3 are common. Optimal solution from one supplier. MF solution can be used world-wide.

16 Pallet handling systems Application(s): Roll conveyor, chain conveyor, link conveyor, chain slide, lifting table, turntable, turnstile Periodic duty Potential of deep freeze Customer requirement: Compactness, variant reduction, decentralized drive technology Success factors: Needed all three motor technologies Decentralized drive technology assembly time reduced by 50% while the total costs stay the same Generally benefits of a frequency inverter soft acceleration and retard for unsecured pallets = gentle handling Smaller construction volume of the drive packages Energy-efficiency (Inverter Motors + VFCeco are an economical alternative.) Wide speed setting range: variant reduction, which causes a reduction of costs for warehousing and reorders 16

17 High-speed doors for industrial applications High-speed doors for parking systems, airport applications and isolating doors Customer requirement: Wide speed setting range Dynamic Success factors: Wide speed setting range Well balanced ratio of external and internal masses (optimal load matching factor) Optimal cost-performance ratio 17

18 Successful projects First projects show great success, e.g. Intralogistics: Roller conveyor/chain conveyor Machine building: Rotary indexing table Gate-manufacturer: Gate-drives Bakery machines: Filling-drive Pump motor Feedback: Significant higher dynamics than a standard motor. Standard motors of the sizes can be replaced by an Inverter motor of size 71, i.e. reduced variance, reduced stocks, larger batches => better price The Inverter motor can replace a 2-pole standard motor almost 1:1 without big changes of the pump geometry. The motor fits perfectly to the machine concept due to its features. 18

19 FAQ Why is the nominal voltage lower than 230V/400V? Especially at inverter operation, the full mains voltage is sometimes not available at the motor terminals (inverter losses, long cables etc.). Due to this, a small voltage reserve was considered, when the AC motors MF were designed. This voltage reserve may also be used for acceleration up to nominal speed (as for a classical servo motor). Depending on the motor type, the nominal voltage of the MF-motors varies by a few volts. Cause: The wire number of the motor winding was choosen that the motor will be utilized at the best. This results in an optimal efficiency. 19

20 FAQ Why has the permissible torque to be reduced below 20Hz? Below 20Hz, the motor and blower speed is so low, that the motor cooling has to be reduced. To use the full nominal torque below 20Hz, a seperate fan may be used (available as an option). 20

21 Compactness + Wide speed setting range = Standardizing With the wide speed setting range of 1:24, many applications with different speeds can be solved by one geared motor-variant. By using a frequency inverter, the speed can be adjusted to the application exactly. Several different gear ratios are not necessary anymore. The wide speed setting range results in standardizing. Storage costs and purchasing effort will be reduced. Inverter motors provide a significant higher output power than conventional AC motors of the same size. Required power Conventional AC motor AC motor MF 0.7 kw Size 80 (0.75 kw) 1.4 kw Size 90 (1.5 kw) (1.5 kw) 21

22 Conclusion Inverter Motors are the consequent implemented solution for inverter operation. Compared to a conventional AC motor, there are lots of benefits: Compact Dynamic Efficient Global Flexible Well priced Optimize your machine: The MF Inverter Motors give you the choice. 22