Incremental encoders

• Информационные материалы

  Функции

  

  Incremental encoder (sin/cos 1 V_pp/RS422/HTL) with cable and connector, clamp flange or Synchro flange

  Incremental encoders deliver a defined number of electrical pulses per revolution, which represent the measurement of the traveled distance or angle.

  Incremental encoders operate on the principle of optoelectronic scanning of dividing discs with the transmitted light principle. The light source is a light emitting diode (LED). The light‑dark modulation generated as the encoder shaft rotates is picked up by photoelectronic elements. With an appropriate arrangement of the line pattern on the dividing disk connected to the shaft and the fixed aperture, the photoelectronic elements provide two trace signals A and B at 90° to one another, as well as a reference signal R. The encoder electronics amplify these signals and convert them into different output levels.

  The following output levels are available:

  • Analog signals sin/cos with 1 V_pp level
    In order to obtain a finer resolution, in the case of encoders with sinusoidal signals, these signals are interpolated in the higher‑level controller.
  • RS422 difference signals (TTL)
    In the case of RS422 incremental encoders (TTL), the resolution can be improved by a factor of four by means of edge evaluation.
  • HTL (High Voltage Transistor Logic)
    Encoders with HTL interfaces are designed for applications with digital inputs with 24 V levels.

  Технические данные

  Article No.		6FX2001‑3....	6FX2001‑2....	6FX2001‑4...0	6FX2001‑2UK00
  Product designation		Incremental encoder with sin/cos 1 Vpp	Incremental encoder with RS422 (TTL)	Incremental encoder with HTL	Double-track incremental encoder with RS422 (TTL)
  Operating voltage DC Vp on encoder	V	5 ± 10 %	5 ± 10 % or 10 ... 30	10 ... 30	5 ± 5 %
  Limit frequency, typ.	kHz	≥ 100 (-3 dB) ≥ 200 (-6 dB)	–	–	–
  Scanning frequency, max.	kHz	–	300	300	Track 1: 160 Track 2: 1000
  No‑load current consumption, max.	mA	150	150	150	Track 1: 150 Track 2: 150
  Signal level		Sinusoidal 1 Vpp	RS422 (TTL)	VH ≥ 21 V at IH = 20 mA at 24 V VL ≤ 2.8 V at IL = 20 mA at 24 V	RS422 (TTL)
  Outputs protected against short-circuit to 0 V		Yes	Yes	Yes	Yes
  Switching time (10 ... 90%) rise/fall time t+/t- (1 m (3.28 ft) cable and recommended input circuit)	ns	–	≤ 50	≤ 200	≤ 100
  Phase angle, signal A to B Edge spacing, min.	Degrees	90 ± 10	90	90	90
  At 160 kHz	µs	–	–	–	Track 1: ≥ 0.8
  At 300 kHz	µs	–	≥ 0.45	≥ 0.45	–
  At 1 MHz	µs	–	–	–	Track 2: ≥ 0.125
  Cable length to downstream electronics, max.1)	M (ft)	150 (492)	100 (328)	300 (984)	Up to 500 kHz: 100 (328) Up to 1 MHz: 50 (164)
  LED failure monitoring		–	High‑resistance driver	High‑resistance driver	–
  Resolution, max.	S/R	2500	5000	2500	Track 1: 1024 Track 2: 9000
  Accuracy	arcsec	± 18 mech. × 3600/PPR count z	± 18 mech. × 3600/PPR count z	± 18 mech. × 3600/PPR count z	Track 1: ± 63 Track 2: ± 12
  Speed, max.
  Electrical	rpm	(18 × 106 rpm)/PPR count (at -6 dB)	(18 × 106 rpm)/PPR count	(18 × 106 rpm)/PPR count	Track 1: 9000 Track 2: 6500
  Mechanical	rpm	12000	12000	12000	12000
  Friction torque (at 20 °C) (68 °F)	Nm (lbf‑in)	≤ 0.01 (0.09)	≤ 0.01 (0.09)	≤ 0.01 (0.09)	≤ 0.01 (0.09)
  Starting torque (at 20 °C) (68 °F)	Nm (lbf‑in)	≤ 0.01 (0.09)	≤ 0.01 (0.09)	≤ 0.01 (0.09)	≤ 0.01 (0.09)
  Shaft loading capacity
  n ≤ 6000 rpm
  Axial	N (lbf)	40 (8.99)	40 (8.99)	40 (8.99)	10 (2.25)
  Radial at shaft extension	N (lbf)	60 (13.5)	60 (13.5)	60 (13.5)	20 (4.50)
  n > 6000 rpm
  Axial	N (lbf)	10 (2.25)	10 (2.25)	10 (2.25)	–
  Radial at shaft extension	N (lbf)	20 (4.50)	20 (4.50)	20 (4.50)	–
  Shaft diameter
  Synchro flange	mm (in)	6 (0.24)	6 (0.24)	6 (0.24)	6 (0.24)
  Clamp flange	mm (in)	10 (0.39)	10 (0.39)	10 (0.39)	–
  Shaft length
  Synchro flange	mm (in)	10 (0.39)	10 (0.39)	10 (0.39)	15 (0.59)
  Clamp flange	mm (in)	20 (0.79)	20 (0.79)	20 (0.79)	–
  Angular acceleration, max.	rad/s2	105	105	105	105
  Moment of inertia of rotor	kgm2 (lbf‑in‑s2)	1.45 × 10-6 (12.8 × 10-6)	1.45 × 10-6 (12.8 × 10-6)	1.45 × 10-6 (12.8 × 10-6)	20 × 10-6 (177× 10-6)
  Vibration (55 ... 2000 Hz) acc. to EN 60068‑2‑6	m/s2 (ft/s2)	≤ 300 (984)	≤ 300 (984)	≤ 300 (984)	≤ 100 (328)
  Shock acc. to EN 60068‑2‑27
  2 ms	m/s2 (ft/s2)	≤ 2000 (6562)	≤ 2000 (6562)	≤ 2000 (6562)	–
  6 ms	m/s2 (ft/s2)	≤ 1000 (3281)	≤ 1000 (3281)	≤ 1000 (3281)	≤ 1000 (3281)
  Degree of protection acc. to EN 60529 (IEC 60529)
  Without shaft input		IP67	IP67	IP67	IP67
  With shaft input		IP64	IP64	IP64	IP64
  Ambient temperature
  Operation
  Flange outlet or fixed cable
  At Vp = 5 V ± 10 %	°C (°F)	‑40 ... +100 (‑40 … +212)	‑40 ... +100 (‑40 … +212)	‑40 ... +100 (‑40 … +212)	‑10 ... +70 (+14 … +158)
  At Vp = 10 … 30 V	°C (°F)	–	‑40 ... +70 (‑40 … +158)	–	–
  Flexible cable
  At Vp = 5 V ± 10 %	°C (°F)	‑10 ... +100 (+14 … +212)	‑10 ... +100 (+14 … +212)	‑10 ... +100 (+14 … +212)	‑10 ... +70 (+14 … +158)
  At Vp = 10 … 30 V	°C (°F)	–	‑10 ... +70 (+14 … +158)	–	–
  Net weight	kg (lb)	0.3 (0.66)	0.3 (0.66)	0.3 (0.66)	0.7 (1.54)
  EMC	Tested in accordance with the guidelines for electromagnetic compatibility 89/336/EEC and the regulations of the EMC guidelines (generic standards)
  Certificate of suitability		CE, cULus	CE, cULus	CE, cULus	CE, cULus

  
  
  

  S/R = signals/revolution

  ¹⁾ With recommended cable and input circuitry of the downstream electronics, observe max. permissible cable length of module to be evaluated.