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gamax
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Joined: 15 Jul 2016
Posts: 131
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 Posted: 05/09/2019 13:56 Post subject: Encoderless Positioning with SINAMICS G S7-1200 / 1500 |
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SIMATIC S7-1200 / 1500: Encoderless Positioning with SINAMICS G
https://support.industry.siemens.com/cs/document/109767951/simatic-s7-1200-1500%3A-encoderless-positioning-with-sinamics-g
In most applications, measuring systems are used to determine position actual values; for example a motor encoder. There are also many applications where encoders are not necessary and in fact, in some cases, an encoder is not required at all. The subsequent application example discusses the various options and secondary conditions relating to encoderless positioning.
SIMATIC S7-1200 and S7-1500 automation systems support the controlled positioning of electrically driven axes. Technology objects are used for this purpose.
Communications to the SINAMICS drive system is established via standard telegrams according to the PROFIdrive profile. The motion control intelligence is embedded in the SIMATIC, where an application-specific setpoint profile is generated. The drive follows this setpoint profile, and position deviations are compensated using the position controller integrated in the SIMATIC.
The subsequent application example provides the following encoderless positioning functions:
| Code: | Absolut or relative Positioning
Jog and setting-up operation
Active as well as passive referencing
Linear- and rotary axis |
Applications
| Code: | Basic positioning axes with low demands placed on the positioning accuracy
Feeder and transport axes in conveyor systems
Compensation of speed dips when loads are transferred/transitioned; for example, for conveyor belts running one after the other
Position tracking functionality for conveyor systems
Feeding packages into sorting systems
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https://support.industry.siemens.com/cs/attachments/109767951/109767951_Encoderless_Positioning_with_S7-1200_1500_and_SINAMICS_G120_DOC_EN_V1_0.pdf
https://support.industry.siemens.com/cs/attachments/109767951/LSLVCPos_V1_0.zip |
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