ELGO Electronic GMIX1A Series, Руководство по эксплуатации

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Product Features
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5 Product Features
The GMIX1A is a magnetic, incremental linear encoder for meas-
urement of lengths and distances. The evaluation electronics are
housed in a separate box where the square wave output signals
are indicated via LEDs. Another LED is used to indicate the operat-
ing status.
Various settings can be made via a 6-pin DIL switch, which is
located in the evaluation box (see
 8.1):
 The output levels (TTL Line driver or HTL push / pull)
 The configuration of speed monitoring VMAX
 The resolution of the measuring system
5.1 Functional Principle
The basis of the magnetic incremental encoders consists of a scanning technology, which scans the north and
south poles on the coded magnetic tape and produces a single Sine/Cosine wave for each pole.
The complete sine/cosine signal process is interpolated electronically. Depending on refinement of the interpola-
tion, together with the pole distance of the magnetic tape, the resolution of the measuring system is determined.
The magnetic tape MB20-50-10-1-R has a pole pitch of 5 mm.
A special evaluation electronic (translator) processes the sine/cosine wave into square output signals from the
signal information of the magnetic tape. These square signals are equivalent to conventional optical rotary- or
linear encoder outputs.
Figure 2: Magnetic Tape
5.2 Pulse Diagram
Figure 3: Pulse Diagram

The output level can be switched between HTL and TTL via the internal DIL switch.

The index pulse Z is only output as a single channel (not inverted).
N N N N S S S S N N N N S S S S N N S S N N S S S
B
B‘
Z
Z‘
A
A‘
Channel A and B are
phase shifted by 90°
The index pulse output occurs
periodically every 5 mm
Figure 1: GMIX1A