R158-0/1000AK.42RB HENGSTLER, R158-0/1000AK.42RB Datasheet - Page 8

• Manufacturer Part Number: R158-0/1000AK.42RB
• Description: ENCODER, ROTARY
• Manufacturer: HENGSTLER

Specifications of R158-0/1000AK.42RB

• No. Of Input Channels: 3
• Rotational Speed Max: 10000rpm
• Body Diameter: 58.5mm
• Connector Type: Cable
• Current Consumption: 60mA
• Encoder Resolution: 1000
• External Length / Height: 35.5mm
• Lead Length: 1.5m
• No. Of Channels: 3
• Svhc: No SVHC (15-Dec-2010)

SINGLE-CHANNEL
SHAFT ENCODERS
TWO-CHANNEL
SHAFT ENCODERS
THREE-CHANNEL
SHAFT ENCODERS
HENGSTLER SHAFT ENCODERS
OUTPUT SIGNALS
EVALUATION
50
Shaft Encoders 2001
Measuring Signals
Single-channel shaft encoders have only one
output channel (A). They are used wherever it
is not necessary to detect the direction of
These shaft encoders use two scanning
systems, and output the signal pulses gene-
rated on two output channels (A and B).
The output pulses from the two channels are
90° out of phase. A downstream logic circuit
can derive the encoder’s direction of rotation
In principle, these are two-channel shaft
encoders which supply one pulse per revolu-
tion of the encoder on a third channel (N).
This pulse is needed for precise deter-mina-
tion of a reference position, for example. It is
All incremental HENGSTLER shaft encoders of
the new generation with OPTOASIC are
three-channel shaft encoders.
The resolution of a two-channel shaft
encoder can be doubled or quadrupled in the
subsequent circuitry. This enables the
resolution of a two-channel encoder with
E N C O D E R S C O U N T E R S C O N T R O L L E R S I N D I C A T O R S R E L A Y S P R I N T E R S C U T T E R S
Phase
offset
Channel B
Channel N
Channel A
Shaft turning clockwise (cw)
seen from front of encoder
Single
evaluation
Double
evaluation
Quadruple
evaluation
Reference pulse
(zero signal)
Channel B
Channel A
Possible evaluation of two-/three-channel shaft encoders
Measuring pitch
rotation, such as in adding or subtracting
counters or tachometers.
from this phase shift. Two-channel shaft
encoders are used wherever it is necessary to
detect the direction of rotation, such as in
up/down counters or positioning devices.
called the zero signal or reference signal.
Shaft encoders with a zero signal are used
very often in positioning systems.
When applied as single- or two-channel
shaft encoders the dispensable output sig-
nals can be omitted.
The shaft encoders supply two squarewave
pulses offset by 90° A and B, and a reference
pulse N (zero signal) as well.
In order to suppress spurious pulses, certain
output circuits (RS 422 and push-pull) gene-
rate inverted signals (A, B, N), such as in
models RI 30, RI 36, RI 58, RI 58-H, RI 76-TD
and RI 58-D.
The measuring pitch is defined as the value
of the distance between two pulse edges of
A and B.
2,500 lines per rev. to be increased electroni-
cally to 5,000 or 10,000 pulses per revolu-
tion (see diagram below).