EN

Encoders without bearings - incremental
Combination of sensor / magnetic wheel
Max. 1024 pulses per revolution
MDFK 08
Features
–– Magnetic sensor with magnetic wheel
–– Resolution max. 4096 steps
–– Output signals A 90° B or A 90° B +N
–– Output circuits: push-pull and RS422
–– Non-contact, wear-free sensing system
–– High resistance to dirt
–– Narrow mounting design
MDFK 08
Technical data - electrical ratings
Technical data - mechanical design
Pulses per revolution
256...1024
Dimensions W x H x L
15 x 8.5 x 45.5 mm
Interpolation
8‑fold, 16‑fold
Shaft type
Reference signal
Zero pulse, width 90°
ø6...43.5 mm (through hollow
shaft)
Output frequency
≤1.6 MHz (8-fold interpolation)
≤3.2 MHz (16-fold interpolation)
Protection DIN EN 60529
IP 67
Operating temperature
-25...+85 °C
System accuracy
±0.5°
Working distance
<0.6 mm
Jitter
≤15 %
Fastening torque
0.4 Nm
Resistance
DIN EN 60068-2-6
Vibration 20 g, 10-2000 Hz
DIN EN 60068-2-27
Shock 100 g, 6 ms
8...30 VDC
Consumption w/o load
≤30 mA
Switching current max.
50 mA
Material
Housing: PC
Output stages
Push-pull short-circuit proof
Relative humidity
95 %
Output signals
A 90° B
A 90° B, 0
Connection
Cable 2 m
Weight approx.
105 g
Reverse polarity protection Yes, to GND
Voltage drop
Subject to modification in technic and design. Errors and omissions excepted.
Voltage supply
<2 VDC (I=20 mA)
MDFK 08T
Voltage supply
5 VDC ±5 %
Consumption w/o load
≤15 mA
Switching current max.
RS422 specific
Output stages
RS422
Output signals
A 90° B + inverted
A 90° B, N + inverted
Reverse polarity protection No
Voltage drop
RS422 specific
1
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MDFK 08G
Encoders without bearings - incremental
Combination of sensor / magnetic wheel
Max. 1024 pulses per revolution
MDFK 08
Part number
Sensor head - Push-pull
Sensor head - RS422
MDFK 08G
MDFK 08T
Interface / Interpolation
A/B / 8-fold
A/B / 16-fold
A/B/N / 8-fold
A/B/N / 16-fold
2101
2124/N16
8124/N8
8124
7101
7105/N16
8101
8105/N16
Interface / Interpolation
A/B + inv. / 8-fold
A/B + inv. / 16-fold
A/B/N + inv. / 8-fold
A/B/N + inv. / 16-fold
Magnetic wheel
MIR10-P.
.
S
006
5Z8
025
1Z0
Bore diameter*
ø6 mm
ø5/8ʺ (15.875 mm)
ø25 mm
ø1ʺ (25.4 mm)
Reference
N Without reference magnet
A With reference magnet
032.0.031
036.0.031
050.0.056
064.0.056
Number of poles
32 poles (Bore diameter max. 17.5 mm)
36 poles (Bore diameter max. 17.5 mm)
50 poles (Bore diameter max. 43.5 mm)
64 poles (Bore diameter max. 43.5 mm)
The pulses are a result of the interpolation factor of the sensor head and the number of poles on the magnetic wheel. The
table below shows as an example which sensor head and which magnetic wheel have to be combined in order to achieve a
certain number of pulses. Other pulses are available on request.
Sensor head MDFK 08
Magnetic wheel MIR10-P
Interpolation factor
32 poles
36 poles
50 poles
64 poles
8
256
288
400
512
16
512
576
800
1024
2
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14/1/2016
Selection of sensor head / magnetic wheel
Subject to modification in technic and design. Errors and omissions excepted.
* Other bore diameter on request.
Encoders without bearings - incremental
Combination of sensor / magnetic wheel
Max. 1024 pulses per revolution
MDFK 08
Accessories
Terminal assignment
Mounting accessories
Mounting angle for MDFK08 3-channel
Output signals
push-pull
signals
+Vs
blue
BU
0V
black
BK
CHA
white
WH
CHB
cable data PUR 4 x 0.25 mm2
CHA
CHB
Push-pull A 90° B, N (3-channel)
cable color
brown
BN
CHN
yellow
YE
CHB
green
GN
CHA
pink
PK
CHN
white
WH
3-channel version with zero-pulse (CHN)
2-channel version without zero-pulse
signals
+Vs
0V
cable data PUR 5 x 0.14 mm , shielded
RS422
CHA
CHA inv.
CHB
RS422 A 90° B + inv. (2-channel)
cable color
brown
BN
signals
+Vs
green
GN
CHA
pink
PK
CHA inv.
yellow
YE
CHB
gray
GY
CHB inv.
white
WH
0V
CHB inv.
cable data PUR 6 x 0.14 mm2
CHN
RS422 A 90° B, N + inv. (3-channel)
signals
cable color
brown
BN
+Vs
CHN inv.
green
GN
CHA
red
RD
CHA inv.
yellow
YE
CHB
blue
BU
CHB inv.
3-channel-version with zero-pulse (CHN/CHN inv.)
3-channel-version with zero-pulse
Rotational or linear direction
2-channel
3-channel
pink
PK
CHN
gray
GY
CHN inv.
white
WH
0V
cable data PUR 8 x 0.14 mm2, shielded
reference magnet
for zero pulse
mounting bracket
CHA is leading CHB by 90° when rotating CW
3
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Subject to modification in technic and design. Errors and omissions excepted.
2
14/1/2016
10134683
Push-pull A 90° B (2-channel)
cable color
brown
BN
Encoders without bearings - incremental
Combination of sensor / magnetic wheel
Max. 1024 pulses per revolution
MDFK 08
Working distance
≤0.5 mm
<1 mm
<0.6 mm
Axial misalignment
Angular misalignment
<3°
<3°
Dimensions
15
8.5
Sensor can also be mounted
with self-tapping special screws
(PT KA30)
4
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14/1/2016
10
Subject to modification in technic and design. Errors and omissions excepted.
45.5
2
25
2.5
12
5
3.5
Encoders without bearings - incremental
Combination of sensor / magnetic wheel
Max. 1024 pulses per revolution
MDFK 08
Magnetic wheel without reference magnet
MIR10-P with 32, 36 poles
A
ø30
ø56
A-A
A
ø 6 H7
ø53
M4 (2x)
A
15
7
A-A
14
7
A
M4 (2x)
ø 30.5
MIR10-P with 50, 64 poles
ø 25H7
0°
12
0°
12
Magnetic wheel with reference magnet
MIR10-P with 32, 36 poles
A
ø40
ø56
A-A
A
ø6 H7
ø66
M4 (2x)
A
15
6
15
6
A-A
M4 (2x)
ø 30.5
A
MIR10-P with 50, 64 poles
ø 25H7
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14/1/2016
0°
12
Subject to modification in technic and design. Errors and omissions excepted.
0°
12
5
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