Headquarters: SIKO GmbH Weihermattenweg 2 79256 Buchenbach Germany Phone+49 7661 394-0

Subsidiary: SIKO Products Asia Pte Ltd 19A, St. Michael's Road #06-05 Singapore 328003 Singapore Phone+65 62979733

Magnetic sensor MSAC501

Absolute, high-resolution position acquisition for rotative applications

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The MSAC501 magnetic sensor serves truly absolute roto measurement, e.g., on large 3-phase current or torque motors.The sensor has the standardized SSI or 485 interfaces. Optionally, an LD output can be selected for incremental signal output. Circumferential speeds of 25 m/sec (incremental) or 5 m/sec (absolute) can be attained.

Profile MSAC501:

  • Max. resolution 0.0014° (MRAC501) or 4.88 µm
  • Repeat accuracy of 0.0014° (MRAC501) or 4.88 µm
  • System accuracy ±0.06° (MRAC501) or ±0.03 mm
  • SSI output circuit, RS485 (absolute), optional LD (incremental)
  • Signal period 5 mm
  • Status LEDs for diagnosis

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Mechanical data
FeatureTechnical dataAdditional information
Housingzinc die-cast
Sensor/ring reading distance≤0.2 mm
Electrical data
FeatureTechnical dataAdditional information
Operating voltage4.5 … 30 V DC
Power input<1.5 W
SSI clock speed input≤750 kHz

depending on cable length

Output circuit

without, LD (RS422)

Interface

SSI, RS485

Cycle time≤30 µs
Type of connectionM12 plug connector (A-coded) 12-pole, 1x pin
System data
FeatureTechnical dataAdditional information
Pole length5 mm
Resolution4.88 µm
0.0014° at MRAC501-256 pole
Scaling factor7, 8, 9, 10 Bit absolute
7, 8, 9, 10 Bit incremental
System accuracy±0.06°

at TU = 20 °C

±0.03 mm

at TU = 20 °C

Repeat accuracy ±0.0014°

at TU = 20 °C

±0.005 mm

at TU = 20 °C

Measuring range360° single-turn
Circumferential speed≤5 m/s absolute
Circumferential speed, incremental
  Circumferential speed [m/s]
Incremental scaling7 Bit25.0015.637.813.131.950.980.490.240.12
8 Bit19.537.813.911.560.980.490.240.120.06
9 Bit9.773.911.950.780.490.240.120.060.03
10 Bit4.881.950.980.390.240.120.060.030.01
Pulse interval [μs]0.20.512.548163266
Counting frequency [kHz]125050025010062.531.2515.637.813.79
Ambient conditions
FeatureTechnical dataAdditional information
Ambient temperature-30 … 85 °C
Storage temperature-40 … 85 °C
Relative humidity100 % condensation admissible
EMCEN 61000-6-2 interference resistance / immission

EN 61000-6-4

emitted interference / emission

Protection categoryIP67 EN 60529, mating connector mounted
Shock resistance500 m/s2, 11 ms

EN 60068-2-27

Vibration resistance100 m/s2, 5 … 150 Hz

EN 60068-2-6

Magnetic sensor MSAC501
Pin assignment
Without LD
SSIRS485PIN
ncnc1
D+DÜA2
D-DÜB3
T-nc4
+UB+UB5
ncnc6
ncnc7
ncnc8
ncnc9
configconfig10
T+nc11
GNDGND12
With LD
SSIRS485PIN
ncnc1
D+DÜA2
D-DÜB3
T-nc4
+UB+UB5
/A/A6
AA7
/B/B8
BB9
configconfig10
T+nc11
GNDGND12
Hint for mounting
When mounting sensor and magnetic ring, please be careful to align both system components correctly.
A, Sensor/ring reading distance
     (active measurement area)
≤0.2 mm
B, Lateral offset±1.5 mm
C, Alignment error<±0.5°

MSAC501 Hint for mounting
Symbolic sensor representation

Scope of delivery
  • distance gage
  • Mounting instructions
  • MSAC501
Ordering table

Hint When ordering the system components please take care that the same code size is used

Feature Order data Specifications Additional information
Code size
A7
7 bits
8
8 Bit
9
9 Bit
10
10 bits
11
11 bits
 
absolute scaling
B7
7 Bit
8
8 Bit
9
9 Bit
10
10 Bit
 
Interface
CRS485
SIKONETZ3
SSI
SSI
 
Output circuit
DLD
LineDriver
O
without
 
incremental scaling
E7
7 Bitonly with LD
8
8 Bitonly with LD
9
9 Bitonly with LD
10
10 Bitonly with LD
 
Pulse interval
F...
0.2, 0.5, 1.0, 2.5, 4.0, 8.0, 16.0, 32.0, 66.0 in µsonly with LD
 
Ordering key

MSAC501 - A - B - C - D - E - F - S

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Anja Wickersheim

Anja Wickersheim
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Contact

SIKO Products Asia Pte Ltd


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