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Indicator, Electronic indicator, Incremental encoder, Magnetic encoder, Optical encoder
Text version of the page
5 Optical rotary encoders Optical rotary encoders use light as a medium in a similar manner to a light barrier. A code disk with a pattern of opaque and transparent segments rotates in a gap between the light source and sensor. Depending on their transmissivity, this disk either prevents or enables the passage of the light beam to the sensor on the opposite side. The sensor itself is part of the electronic evaluation system, which derives electrical pulses from the opto-electronic scanning system on the basis of which the length, angle or speed information can be calculated. Both optical incremental and absolute value encoders are available in both hollow or solid shaft versions. Standard interfaces or individual field bus links with freely programmable parameters are included in the basic standard product features. The standard versions of the optical rotary encoders can be exchanged one to one with the magnetic rotary en-
coders. 2 . 2 . 1
Geared potentiometers 2 . 22
With this absolute measuring method, angles or lengths are tracked by a com- bination of single or multiple coil poten- tiometers via a gear unit. The position of the potentiometer provides analog signals for follow-up controllers or elec- tronic displays when motion occurs. Transducers ensure loss-free signal transmission and prevent line losses. An optional cam controller is available for controlling switching operations. Geared potentiometers Hollow shaft diameters 14–20 mmSolid shaft diameters 6–20 mm Output: Potentiometer, current 4 … 20 mA, voltage 0 … 10 VProtection category up to IP65 . 32 . 4
Optical incremental encoders Hollow shaft diameters 10–20 mmSolid shaft diameters 6–16 mm Resolutions up to 1024 pulses/revolution Output circuit: PP, OC, OP, LD5, LD24 Protection category up to IP65 Optical angle encoders Hollow shaft diameters 16–20 mmResolutions up to 8192 pulses/revolutions (13 bit) and up to 4096 revolutions (12 bit)Output circuits: SSI, Profibus, Inter-Bus, RS485Protection category up to IP65 2 RotoLine | 2.0 Product Overview www.siko.de
Geared potentiometers 2 . 22
With this absolute measuring method, angles or lengths are tracked by a com- bination of single or multiple coil poten- tiometers via a gear unit. The position of the potentiometer provides analog signals for follow-up controllers or elec- tronic displays when motion occurs. Transducers ensure loss-free signal transmission and prevent line losses. An optional cam controller is available for controlling switching operations. Geared potentiometers Hollow shaft diameters 14–20 mmSolid shaft diameters 6–20 mm Output: Potentiometer, current 4 … 20 mA, voltage 0 … 10 VProtection category up to IP65 . 32 . 4
Optical incremental encoders Hollow shaft diameters 10–20 mmSolid shaft diameters 6–16 mm Resolutions up to 1024 pulses/revolution Output circuit: PP, OC, OP, LD5, LD24 Protection category up to IP65 Optical angle encoders Hollow shaft diameters 16–20 mmResolutions up to 8192 pulses/revolutions (13 bit) and up to 4096 revolutions (12 bit)Output circuits: SSI, Profibus, Inter-Bus, RS485Protection category up to IP65 2 RotoLine | 2.0 Product Overview www.siko.de