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PMIS3 POSIMAG®
Magnetic Scale Position Sensor
Very compact sensor for industrial applications
Sensor head PMIS3
• Non-contact, no wear
• High velocity
• Robust shielded metal enclosure
• Protection class IP67
• Incremental encoder output A/B/Z
• Signal processing as usual with encoders
• Reference pulse and end position signal
• Indicator for velocity/position errors
A POSIMAG measuring system consists of the
sensor head PMIS3 and the magnetic scale PMIB3
with the same magnetic period.
Specifications
Output
Incremental encoder output A/B with differential
push-pull output, TTL/RS422 or HTL compatible
Excitation voltage
10 ... 30 VDC or 5 VDC ±5 %
Excitation current
50 mA to 300 mA, depending on pulse frequency,
cable length and load
Magnetic period of the sensor
2 mm
5 mm
0.1 ... 0.8 mm
0.1 ... 2 mm
±1 mm
±1 mm
15 µm ± 40 µm/m
30 µm ± 40 µm/m
Guided spacing between sensor and mag. scale (xz)
Side tracking tolerance of the sensor
Linearity (sensor with mag. scale PMIB3)
Repeatability
± 1 digit
Resolution with ext. times 4 counting mode [µm]
Max. velocity with fp=50 kHz [m/s]
(20 kHz: x 0.4; 10 kHz: x 0.2)
Order code PMIS3
PMIS3
—
± 1 digit
5
10
20
50
10
25
50
125
0.8
1.6
3.2
8
1.6
4
8
20
—
—
—
—
KHZ—
M—
Model name
Magnetic period
20 = 2 mm / 50 = 5 mm
Resolution (in µm) with times 4 counting mode
Mag. period 2 mm: 5 / 10 / 20 / 50
Mag. period 5 mm: 10 / 25 / 50 / 125
Max. pulse frequency (in kHz, standard 50 kHz)
50 / 20 / 10
Output
HTL
= HTL output with excitation 24 VDC, output 24 V
TTL
= TTL output with excitation 5 VDC, output TTL/RS422
TTL24V
= TTL output with excitation 24 VDC, output TTL/10 mA
Reference pulse/ end position signal/ status signal
Z0
= A/B w/o reference pulse / Z1 = A/B with reference pulse Z
Z2
= A/B with end position signal / *Z3 = A/B with reference pulse
and status signal
(Option Z3 only for non-diferential output, single ended)
Cable length (in m, standard 2 m)
Connection
S
= Cable output, open end
P / P15
= SUB-D connector at the cable end: P = 9 pins; P15 = 15 pins
Order example: PMIS3 - 50 - 25 - 50KHZ - HTL - Z1 - 2M - S
6
CAT-PM--E-04
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
ASM GmbH
PMIS3 POSIMAG®
Magnetic Scale Position Sensor
Specifications
(continued)
Max. pulse frequency fp
Outputs
Material of enclosure
Electrical connection
Weight (w/o cable and connector)
Protection class (EN 60529)
Environmental
Shock
Vibration
EMC
Temperature
50 kHz, 20 kHz, 10 kHz (standard 50 kHz)
A, A, B, B, reference pulse Z, Z, end position
signal E, E, status signal ERR
Zinc die casting
Cable 8 wire, Ø 5 mm, open cable end,
9 pin SUB-D connector at the cable end as option.
Max. length of the integrated sensor cable for
TTL: 3 m; HTL/TTL24V: 20 m
30 ±5 g
IP67
EN 60068-2-27:1993, 50 g 6 ms, 100 shocks
EN 60068-2-6:1995, 20 g, 10-2000 Hz, 10 cycles
DIN EN 61326
-40 ...+85°C
The subsequent counting device must be able to process the specified maximum pulse frequency
of the sensor.
Output signals
Saturation voltage
Rise time
UH, UL = 0,2 V
UH, UL = 0,4 V
Clast < 10 nF
ISL, ISH < 800 mA
ISL, ISH < 90 mA
tr, tf < 200 ns
Load/cable length
Load/pulse frequency fp
Short circuit current
Pulse frequency in
dependence on
the cable length
Iout = ±10 mA
Iout = ±30 mA
(UH = UB - Uout)
(UH, UL = 0 V)
(UH, UL = 1,5 V)
with cable length 1 m, 10 % … 90 %
HTL single ended
UB = 24 V
TTL/RS422 differential
UB = 5 V *
TTL/24 V
UB = 24 V
Max. output current
Rlast min.
Clast max.
200 m
100 m
50 m
50 mA
500 Ω
10 nF
15 kHz
25 kHz
50 kHz
50 mA
100 Ω
10 nF
—
100 kHz
200 kHz
10 mA
500 Ω
1 nF
—
—
50 kHz
10 m
100 kHz
300 kHz
100 kHz
* = consider the voltage loss of the cable; the excitation voltage 5 V ± 5% of the sensor must be
guaranteed.
Note: For longer distances (see specification above) you must use min. 0,5 mm2 wire for „Excitation+“
and „Excitation GND“ (see signal wiring next page), all signal wires must be min. 0,14 mm2!
Outline drawing
Status signal
(LED)
Active measurement range
Position tolerance of the active
measurement range: dx = ±1 mm
Reference mark
Dimensions informative only. For guaranteed dimensions consult factory.
ASM GmbH
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
CAT-PM-E-04
7
PMIS3 POSIMAG®
Magnetic Scale Position Sensor
Output signals
Option Z1
(Reference pulse)
Option Z2
(End position
signal)
±1 mm, sw. position independent from A,B
End position mark
Signal name
Signal
wiring /
connection
Option
Z0
Z1
Z2
Z3*
Open cable end
Cable colour
Conn. SUB-D,
9 pin
pin no.
white
1
Excitation +
brown
5
B
green
2
Excitation GND (0V)
B
B
B
A
A
A
A
yellow
3
B
B
B
ERR
grey
7
A
A
A
−
pink
6
−
Z
E
Z
blue
4
−
Z
E
−
red
8
black
9
Shield
Z
= reference pulse
E
= end position signal
ERR = status signal, periodical approx. 16 Hz, for side tracking and velocity errors
*
= status signal ERR available only with HTL (single ended) output
Cable output dimensions
Connector SUB-D (Pin)
View to connector pins
CAT-PM--E-04
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
ASM GmbH
PMIB3 POSIMAG®
Magnetic Scale
Magnetic scale PMIB3 for Position Sensor PMIS3
• Easy splicing
• Resistant to moisture and many fluids
• Extensive ruggedness against dust etc.
• High temperature durability
• Magnetic scale with stainless steel base
The magnetic material is magnetised in defined and even distances and works as a solid measure. Reference marks can be
user defined in 4 mm resp. 10 mm steps. The magnetic scale
retains its firmness by means of a spring steel base (stainless
steel strip CrNi 17 7).
Specifications
Solid measure
Plastic bonded flexible permanent magnet
Base material
Stainless steel CrNi 17 7 / elastomer
Masking tape
Stainless steel (non magnetic)
Measurement ranges
e.g. 100 ... 2500 mm (up to 50 m on request)
Width
10 mm +0.1 mm / -0.2 mm
Thickness (w/o masking tape)
1.4 mm +0.1 mm / -0.2 mm
Thickness (with masking tape)
1.6 mm +0.1 mm / -0.2 mm
Magnetic period
Linearity at 25°C
up to 30 m
up to 50 m
Reference mark (reference pulse)
Measurement range
2 mm
5 mm
±40 µm/m
±80 µm/m
±40 µm/m
±80 µm/m
max. every 4 mm
max. every 10 mm
must be divisible by 4
must be divisible by 10
Linear thermal expansion coefficient
17 x 10-6 / K
Operating temperature
-40 ...+100°C
An unmagnetic masking tape made of stainless steel is available (accessories). The magnetic scale is
flexible and can be glued to the surface of a cylinder with a minimum radius of 100 mm and used for
angular measurements.
Order code PMIB3
PMIB3
Model name
Magnetic period
20 = 2 mm / 50 = 5 mm
Mounting of the magnetic scale
N = adhesive taping
Measurement range (total length = range + X mm, refer to the table on page 12)
e.g. 100, 500, 1000 ... 2500 mm (up to 50 m on request)
Measurement ranges must be divisible by 4 (resp. by 10)
Reference marks/end position marks (optional)
R1 = reference mark on the left / R2 = on the right
E1 = end position mark on the left / E2 = on the right
Additional reference marks every 4 mm (period 2 mm) resp. 10 mm (period 5 mm) from the left
Options
FP = magnetic scale in flat profile
HP = magnetic scale in high profile
AB = masking tape (only with FP + HP)
Order example: PMIB3 - 50 - N - 1500 - R1
ASM GmbH
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
CAT-PM-E-04
PMIS3/PMIB3 POSIMAG®
Magnetic Scale
Position of the
ERR
standard
reference
Z
marks
A
A
B
Magnetic period
Dimensions
reference
Switching position A
Total length B
20.0 ±1 mm
measurement range + 40 mm
60.0 ±1 mm
measurement range + 120 mm
2 mm
5 mm
2 mm with high profile
5 mm with high profile
Additional reference marks every 4 mm (period 2 mm) resp. 10 mm (period 5 mm) from the left h. s.
Position of the
end position
marks
E
A
A
B
Dimensions
end positions
10
Magnetic period
Switching position A
Total length B
2 mm
21.0 ±1 mm
measurement range + 50 mm
5 mm
22.5 ±1 mm
measurement range + 50 mm
2 mm with high profile
61.0 ±1 mm
measurement range + 130 mm
5 mm with high profile
62.5 ±1 mm
measurement range + 130 mm
CAT-PM--E-04
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
ASM GmbH
PMIS3/PMIB3 POSIMAG®
Magnetoresistive Position Sensor
Accessories
Masking tape
PMAB:
Masking tape made of stainless steel for POSIMAG
magnetic scale PMIB3, width 10 mm, thickness 0.2
mm
PMAB — 10MM —
Order code:
Length in mm
Outline drawing
flat profile
PMFP
Mounting element PMFP
Mounting element PMFP
Magnetic scale
(w/o masking tape)
Mounting set PMFP-BFS1
Outline drawing
high profile
PMHP
Mounting element P
Magnetic scale
(w/o masking tape)
Mounting element P
Mounting set PMHP-BFS1
Slider for high
profile PMGW3
222
19,6
36,3
M5
29,8
28,3
19
16
78
Dimensions informative only. For guaranteed dimensions consult factory.
ASM GmbH
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
CAT-PM-E-04
11
PMIB3 POSIMAG®
Magnetic Scales – overview
Magnetic Scales – Technical Information
Types of magnetic scales / Application recommendation
Type
Stainless steel
elastomer scale
PMIB3
base strip
CrNi 17 7 stainless steel
magnetic scale
Elastomer magnetic scale
environmental conditions
very difficult
corrosion resistance
high
temperature resistance
high
media resistance
high
Chemical durability – Elastomer magnetic scales (PMIB3)
no / little influence
motor oils
gear oils
ATF (automatic transmission fluid)
hydraulic fluid
kerosene
antifreeze agent
purifying agent
turpentine
water
sea water/salt water
12
weak / middle influence
JP-4 fuel (Jet fuel)
gasoline/petrol
heptane
alcohol
strong influence
aromatic hydrocarbon (benzene, toluene,
xylene)
ketone
anorganic acids (HCl, H2SO4)
CAT-PM--E-04
Tel.: 08123/986-0 Fax: 08123/986-500 www.asm-sensor.com
ASM GmbH