Motion Control Encoder measuring systems

• Информационные материалы

  Информационные материалы

  Encoder type	Interface	Safety Integrated1)	Accuracy in angular seconds	Resolution	Degree of protection without/with shaft input
  Incremental encoders
  	sin/cos 1 Vpp	Yes	± 18 mech. × 3600/ PPR count z	2500 S/R	IP67/IP64
  	RS422 (TTL)	2)	± 18 mech. × 3600/ PPR count z	5000 S/R	IP67/IP64
  	HTL	2)	± 18 mech. × 3600/ PPR count z	2500 S/R	IP67/IP64
  	RS422 (TTL) double track	2)	Track 1: ± 63 Track 2: ± 12	Track 1: 1024 S/R Track 2: 9000 S/R	IP67/IP64
  Absolute encoders
  	DRIVE‑CLiQ	2)	± 36	Single‑turn 22 bit Multi‑turn 34 bit (22 bit single‑turn + 12 bit multi‑turn)	IP67/IP64
  	SSI	2)	± 79 (with 8192 steps)	Single‑turn 13 bit (8192 steps) Multi‑turn 25 bit (8192 steps × 4096 revolutions)	IP67/IP64
  	EnDat	Yes	± 60 (incremental track)	Single‑turn 13 bit (8192 steps) Multi‑turn 25 bit (8192 steps × 4096 revolutions)	IP67/IP64
  	PROFIBUS DP	2)	± 79 (with 8192 steps)	Single-turn 13 bit (8192 steps) Multi-turn 27 bit (8192 steps × 16384 revolutions)	IP67/IP64
  	PROFINET IO	2)	± 79 (with 8192 steps)	Single-turn 13 bit (8192 steps) Multi-turn 27 bit (8192 steps × 16384 revolutions)	IP67/IP64

  
  
  

  S/R = signals/revolution

  ¹⁾ Built‑on rotary encoders can be used for Safety Integrated.

  ²⁾ If you require information about the usability of built‑on rotary encoders for Safety Integrated, please contact your local Siemens office.

  Absolute encoders, incremental encoders and mounting accessories

  The built‑on optoelectronic rotary encoders sense distances, angles of rotation or speeds in machines. They can be used in conjunction with numerical control systems, programmable logic controllers, drives and position displays, e.g. for:

  • SINUMERIK CNC controls
  • SIMOTION Motion Control Systems
  • SIMATIC programmable logic controllers
  • SINAMICS drive systems

  Область применения

  A distinction is made between incremental and absolute measuring procedures:

  • In the case of incremental encoders, the machine must travel to a reference point after each power‑off state, as the position is not usually stored in the controller, and movements of the machine while the power is off are not recorded.
  • Absolute encoders, on the other hand, also record these movements while the power is off and return the actual position with power On. Travel to a reference point is not necessary.

  Дизайн

  All encoders are available in Synchro flange and clamp flange versions. Encoders with a Synchro flange can be attached to the machine with 3 clamps or mounted with axial screws. The encoder is driven by means of a plug‑in coupling or a spring disk coupling. Alternatively, pulleys can also be used.

  The encoder supply voltage is 5 V DC or alternatively 10 V to 30 V DC. The 10 V to 30 V DC version supports longer cable lengths. Most control systems apply the supply voltage directly at the measuring circuit connector. With SINAMICS, the power supply for the measuring systems is provided via the Sensor Modules.

  For rotary encoders with cables, the cable length including the connector is 1 m (3.28 ft).

  The following bending radii for the cables at the encoder must be observed:

  • One‑time bending: ≥ 20 mm (0.79 in)
  • Continuous bending: ≥ 75 mm (2.95 in)

  Дальнейшая информация

  Power supply

  The measuring systems only fulfil the requirements stipulated in the standard IEC 61010-1 if the power is supplied from a secondary circuit with limited power according to IEC 61010-1^{3rd Ed.}, Section 9.4 or with limited power according to IEC 60950-1^{2nd Ed.}, Section 2.5, or from a secondary circuit Class 2 according to UL1310. You can also use the corresponding sections of the standards DIN EN 61010-1, EN 61010-1, UL 61010-1 and CAN/CSA-C22.2 No. 61010-1 instead of the standard IEC 61010-1^{3rd Ed.}, Section 9.4, respectively the corresponding sections of the standards DIN EN 60950-1, EN 60950-1, UL 60950-1 and CAN/CSA-C22.2 No. 60950-1 instead of the standard IEC 60950-1^{2nd Ed.}, Section 2.5.