Application for Drive Technology

MICROMASTER 4 Application description

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

Warranty, Liability and Support

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

A&D SD 2/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

Warranty, Liability and Support

We do not accept any liability for the information contained in this docu-ment.

Any claims against us based on whatever legal reason resulting form the use of the examples, information, programs, engineering and perform-ance data etc., described in this document shall be excluded. Such an ex-clusion shall not apply in the case of mandatory liability, e.g. under the German Product Liability Act (Produkthaftungsgesetz), in case of intent, gross negligence, or injury of life, body or health, guarantee for the quality of a product, fraudulent concealment of a deficiency or breach of a condi-tion which goes to the root of the contract (wesentliche Vertragspflichten). However, claims arising from a breach of a condition which goes to the root of the contract shall be limited to the foreseeable damage which is intrinsic to the contract, unless caused by intent or gross negligence or based on mandatory liability for injury of life, body or health. The above provisions does not imply a change in the burden of proof to your detriment.

The Application Examples are not binding and do not claim to be complete regarding the circuits shown, equipping and any eventuality. They do not represent customer-specific solutions. They are only intended to provide support for typical applications. You are responsible in ensuring that the described products are correctly used.

These Application Examples do not relieve you of the responsibility in safely and professionally using, installing, operating and servicing equip-ment. When using these Application Examples, you recognize that Sie-mens cannot be made liable for any damage/claims beyond the liability clause described above. We reserve the right to make changes to these Application Examples at any time without prior notice. If there are any de-viations between the recommendations provided in these Application Ex-amples and other Siemens publications e.g. Catalogs then the contents of the other documents have priority.

Copyright 2005 Siemens A&D. It is not permissible to transfer or copy these Application Examples or excerpts of them without first having prior authorization from Siemens A&D in writing.

For questions about this document please use the following e-mail-address:

mailto:csweb@ad.siemens.de

mailto:csweb@ad.siemens.de

Definitions and Warnings

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

A&D SD 3/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

Definitions and Warnings

Qualified personnel

In the sense of this documentation, qualified personnel are those who are knowledgeable and qualified to install, mount, commission, operate and service/maintain the MICROMASTER 4 and SINAMICS G110 products to be used. He or she must have the appropriate qualifications to carry-out these activities, for example:

Trained and authorized to energize and de-energize, ground and tag circuits and equipment according to applicable safety standards.

Trained or instructed according to the latest safety standards in the care and use of the appropriate safety equipment.

Trained in rendering first aid.

There is no explicit warning information in this documentation. However, reference will be made to warning information and instructions in the Operating Instructions for the particular product.

User group

The application software and the application example were developed to support Siemens personnel in the generation of user programs for machines or systems.

This is not intended to be directly passed-on or sold to persons/companies outside Siemens AG.

Application software may only be passed-on as part of a complete machine for plant software.

If passed-on to persons/companies outside Siemens AG who are not involved in a total project integrated application software, then the person or persons who transferred this information carry full responsibility for an liability or damage claims.

Only qualified personnel may use the application software and the application example.

If this is incorrectly used, this can result in the plant or system being destroyed and/or injury to personnel.

Exclusion of liability

The application examples are provided at no charge. They may be used under the clear understanding that the party using them does so at his own risk. They may only be passed-on to third parties, completely unchanged, maintaining all of the confidential property notices. These application examples may only be commercially passed-on after prior authorization in writing from Siemens Aktiengesellschaft.

Definitions and Warnings

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

A&D SD 4/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

Siemens does not accept any liability for recommendations which are provided or implied by the following description. The following description does not represent any additional guarantee, warranty or liability which goes beyond Siemens general conditions for supply. Any other claims are completely excluded. The authors and owners are only liable for deliberate and gross negligence. It is especially important to note that the authors are not liable for possible defects and subsequent damage.

Information regarding trademarks SIMOVERT is a Siemens registered trademark.

MICROMASTER is a Siemens registered trademark

Revisions/author

Version Datum/nderung Verfasser 1.0 03/04, Erstausgabe Weissenfels

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

A&D SD 5/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

1 Motor description

1.1 Features

Compact 1PH7 three-phase motors are force-ventilated squirrel-cage induction motors. The motors can only be fed from a frequency inverter. These motors cannot be directly connected to the line supply. Originally, 1PH7 motors were used for main spindle applications in the machine tool industry. Later, these were complemented by applications in general machinery construction. Existing DC drives can be replaced as a result of the type of construction (mechanical design) as well as the technical data.

These motors are especially suitable for the following requirements:

Wide speed control range

Speed down to zero without torque reduction

Low space requirement

Rotational accuracy, balance quality, low envelope dimensions as well as dynamic performance are some of the outstanding features.

Three-phase 1PH7 motors are available with rated powers from 3.7 kW to 385 kW at rated speeds from 400 RPM to 2900 RPM; in conjunction with MICROMASTER 440, the maximum power rating is limited to 200 kW.

Advantages of 1PH7 motor include:

Rugged, low-maintenance four-pole squirrel-cage induction motor

Compact design (low overall envelope dimensions)

Low moment of inertia

Full torque is continually available even at standstill thanks to the separately-driven fan

Excellent rotational accuracy - even at low speeds

High speeds in the field-weakening range

Motor temperature is monitored using KTY

Bearing design for high cantilever forces for belt out-drives

High stability against vibration

IP54 degree of protection - optionally IP55

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

A&D SD 6/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

1.2 Design

1PH7 compact induction motors have no separate enclosure. The essential components of the stator include the drive-end bearing endshield, stator core, non-drive end bearing endshield as well as the modules/assemblies for the fans and terminal boxes. Contrary to force-ventilated standard induction motors, the cooling air is not blown across the cooling ribs, but through ducts in the stator core.

View of frame sizes 100, 132, 160

Figure 1-1: 1PH7 motor, frame sizes 100, 132, 160

View of the frame sizes 180, 225, 280

Figure 1-2: 1PH7 motor, frame sizes 180, 225, 280

Asynchronous Servomotors 1PH7 in combination with MICROMASTER MM440

1.3 Motor design

Winding design 1PH7 motors are exclusively four-pole motors. The winding is used to adapt the motor speed.

A&D SD 7/21

Cop

yrig

ht

Sie

men

s A

G 2

005

All

right

s re

serv

ed

Speed n

Frequency inverteroutput voltage

Maximum frequency inverteroutput voltage reached

400 1000 1500 25002000 Figure 1-3: Winding design for 1PH7 motors

The interrelationship between the rated speed and rated frequency is shown in the following table.

Rated speed in RPM

Rated frequency in Hz

400 Approx. 14.3

1000 Approx. 35.6

1500 Approx. 51.6

2000 Approx. 68.9