EN

Incremental encoders
With measuring arm and wheel
100...25000 manual adjustable
MA20
Features
–– Encoder with 16 predefined resolutions
–– Max. 25000 pulses per revolution
–– Measuring wheel circumference 200 mm
–– Manual adjustment without any programming tool
–– Contact pressure seamlessly adjustable
–– Different degrees of rubber hardness for optimal grip
Technical data - mechanical design
Voltage supply
4.75...30 VDC
Size (flange)
ø40 mm
Consumption typ.
100 mA (24 VDC, w/o load)
Shaft type
ø6 mm solid shaft
Pulses per revolution
100...25000
Protection DIN EN 60529
IP 64
Sensing method
Optical
Operating speed
≤3000 rpm
Output frequency
≤300 kHz
Operating torque typ.
0.0075 Nm (3000 rpm / 20 °C)
Output signals
A 90° B
Materials
Output stages
Push-pull antivalent,
short-circuit proof (HTL)
Interference immunity
DIN EN 61000-6-2
Encoder housing: aluminium
Measuring arm: Aluminium/steel
Measuring wheel: Aluminium/
NBR
Emitted interference
DIN EN 61000-6-3
Operating temperature
-20...+85 °C
Relative humidity
95 % non-condensing
Resistance
DIN EN 60068-2-6
Vibration 10 g, 10-200 Hz
DIN EN 60068-2-27
Shock 50 g, 11 ms
Connection
Connector M12, 8-pin
Cable 2 m
Weight approx.
100 g
Output signals
Counter clockwise rotating direction when looking at the flange.
Switch setting (HEX switch)
CHA
Switch
0
1
2
3
4
5
6
7
CHA comp.
CHB
CHB comp.
90°
1
Resolution
100
200
360
500
512
720
1000
1024
Switch
8
9
A
B
C
D
E
F
Resolution
2000
2048 (default)
2500
3600
5000
10000
20000
25000
www.baumer.com/motion
13/8/2015
Technical data - electrical ratings
Subject to modification in technic and design. Errors and omissions excepted.
MA20 with mounting accessories
Incremental encoders
With measuring arm and wheel
100...25000 manual adjustable
MA20
Part number
MA20
Terminal assignment
I401D 26W
Connector
02048C
Connection
5 Cable 2 m,
radial
N Connector M12,
8-pin, radial
Voltage supply / signals
26W 4.75...30 VDC / push-pull
antivalent short-circuit proof
Core colour
Signals
Pin 1
white
0V
Pin 2
brown
+Vs
Pin 3
green
CHA
Pin 4
yellow
CHB
Pin 5
grey
n.c.
Pin 6
pink
n.c.
Pin 7
blue
CHB comp.
Pin 8
red
CHA comp.
Connector M12 – for connection reference -N
Measuring wheel
N4 NBR, Shore 40
N7 NBR, Shore 70
5
6
7
4
3
8
1
2
Trigger level
10146775
Outputs 26W
Push-pull antivalent
short-circuit-proof
Output level High
>+Vs -2.6 V (I = 20 mA)
Output level Low
<0.5 V (I = -20 mA)
Female connector M12, 8-pin, straight,
without cable
Mounting accessories
11043871
Encoder standoff set
11047704
O-ring for wheel (shore 40), yellow
11043772
O-ring for wheel (shore 70), black
11053254
Adjust gauge
Dimensions
MA20
6: ¡ 0 [
¡ DSSUR[ DSSU 1ƒ
“ƒ
Mounting accessories: encoder standoff set
DSSUR[ 2
www.baumer.com/motion
13/8/2015
Connectors and cables
Subject to modification in technic and design. Errors and omissions excepted.
Accessories
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