Technical Specifications
Item no. 13404005-02, Revision 01
22 ( 40 )
6.6
Speed and position sensor (MiniCoder)
Example of design: toothed wheel
The MiniCoder scans a target wheel (toothed wheel) made from ferromag-
netic material. The magnetic field of the built-in encoder is modulated by the
moving target wheel.
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The sensor detects the change in magnetic field and converts this into a si-
nusoidal output signal.
6.6.1
Technical Specifications
Output level
1 V
SS
as differential signal
Output signal
2 sinusoidal signals offset by 90°
and their inverse signals;
short-circuit-proof;
Option: reference pulse
Output frequency
0 … 200 kHz
for a line capacity of 5 nF
Offset (static)
± 20 mV
Amplitude tolerance
-20% … +10%
Amplitude synchronization USp1/USp2
0.9 … 1.1
Supply voltage UB
5 V
DC
±5%
Power consumption without load
≤ 0.3 W
Cable length
max. 100 m
(note voltage drop via supply line)
Connection
9-core cable Core cross-section: 0.15 mm²
Outer diameter: 5 -0.3 mm,
min. bending radius: 25 mm
additionally routed shielded cable for grounding near to sensor
6.7
ESD protection
Insulated routing
The ESD protection is produced by establishing an electrically conductive con-
nection between the rotating shaft of the HF spindle and a separate PE pro-
tective conductor, which is routed to the motor casing with insulation.
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Depending on the operating time, the electrical resistance of this sliding
contact is <1 kΩ.
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The wear and the function of the ESD protection can be monitored via a
second sliding contact.