Magnetic sensor MSAC501
Absolute, high-resolution position acquisition for rotative applications
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.Circumferentialspeeds of 25 m/sec (incremental) or 5 m/sec (absolute) can be attained.
- 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
Ben
King
Inside Sales
Edward
Stuart
Product Manager Business Unit MagLine
Technical drawing
Technical Specifications
Mechanical data
Electrical data
System data
Ambient conditions
Feature
Technical Specifications
Enhancement
Housing
zinc die-cast
Sensor/ring reading distance
≤0.2
mm
Feature
Technical Specifications
Enhancement
Operating voltage
4.5 … 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 connection
M12 plug connector (A-coded)
12-pole, 1x pin
Feature
Technical Specifications
Enhancement
Pole length
5
mm
Resolution
4.88
µm
0.0014
°
at MRAC501-256 pole
Scaling factor
7
bit
,
8
,
9
,
10
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 range
360
°
singelturn
Circumferential speed
≤5
m/s
absolute
Incremental peripheral speed
|
Circumferential speed [m/s] |
||||||||||
|
Incremental scaling |
7 bit |
25.00 |
15.63 |
7.81 |
3.13 |
1.95 |
0.98 |
0.49 |
0.24 |
0.12 |
|
8 bit |
19.53 |
7.81 |
3.91 |
1.56 |
0.98 |
0.49 |
0.24 |
0.12 |
0.06 |
|
|
9 bit |
9.77 |
3.91 |
1.95 |
0.78 |
0.49 |
0.24 |
0.12 |
0.06 |
0.03 |
|
|
10 bit |
4.88 |
1.95 |
0.98 |
0.39 |
0.24 |
0.12 |
0.06 |
0.03 |
0.01 |
|
|
Pulse interval [μs] |
0.2 |
0.5 |
1 |
2.5 |
4 |
8 |
16 |
32 |
66 |
|
|
Counting frequency [kHz] |
1250 |
500 |
250 |
100 |
62.5 |
31.25 |
15.63 |
7.81 |
3.79 |
|
|
3 |
1 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Feature
Technical Specifications
Enhancement
Ambient temperature
-30 … 85 °C
Storage temperature
-40 … 85 °C
Relative humidity
100
%
condensation admissible
EMC
EN 61000-6-2
interference resistance / immission
EN 61000-6-4
emitted interference / emission
Protection category
IP67
EN 60529, with mating connector fitted
Shock resistance
500 m/s2, 11 ms
EN 60068-2-27
Vibration resistance
<100 m/s2, 5 … 150 Hz
EN 60068-2-6
More information
pin assignment
without LD
|
SSI |
RS485 |
PIN |
|
nc |
nc |
1 |
|
D+ |
DÜA |
2 |
|
D- |
DÜB |
3 |
|
T- |
nc |
4 |
|
+UB |
+UB |
5 |
|
nc |
nc |
6 |
|
nc |
nc |
7 |
|
nc |
nc |
8 |
|
nc |
nc |
9 |
|
config |
config |
10 |
|
T+ |
nc |
11 |
|
GND |
GND |
12 |
With LD
|
SSI |
RS485 |
PIN |
|
nc |
nc |
1 |
|
D+ |
DÜA |
2 |
|
D- |
DÜB |
3 |
|
T- |
nc |
4 |
|
+UB |
+UB |
5 |
|
/A |
/A |
6 |
|
A |
A |
7 |
|
/B |
/B |
8 |
|
B |
B |
9 |
|
config |
config |
10 |
|
T+ |
nc |
11 |
|
GND |
GND |
12 |
Hint for mounting
Please ensure that both system components are correctly aligned with each other when mounting the sensor and magnetic ring.
|
A, Sensor/ring reading distance |
≤0.2 mm |
|
B, Lateral offset |
±1.5 mm |
|
C, Alignment error |
<±0.5° |
Further assembly instructions for the MSAC501 magnetic sensor can be found in the MBAC501 magnetic band data sheet
(Sensor representation symbolic)
System components
Purchase order
When ordering the system components please take care that the same code size is used
Product configuration
Feature
Select specifications
Enhancement
Select your specifications:
code size
7
absolute scaling
7
Interface
RS485
Output circuit
O
incremental scaling
7
only with LD
only with LD
only with LD
only with LD
Pulse interval
0.2
in µs
only with LD
Scope of delivery
- MSAC501
- Installation Instructions
- Distance gage