TF1 SSI Contactless Inductive Linear Transducer

Manufacturer: Novotechnik
Category: Displacement, SENSORS, Linear Transducers

Novotechnik TF1 SSI inductive transducer. NOVOPAD inductive technology, contactless.

Non-contact linear inductive position transducer with active floating position marker. Stroke from 100 to 1000 mm. Reproducibility up to 5 µm. IP67 protection. Principle: emitter and receiver coils on the same board; the marker induces a current in the receivers, with sine/cosine structures on a thick and a thin track.

Key points

Unlimited mechanical life (with floating placeholder)
Refresh rate: 10 kHz
Reproducibility: up to 5 µm
IP67 protection: a GORE membrane equalizes pressure in response to temperature changes

Technical Frequently Asked Questions

What can be connected to the SSI TF1 inductive transducer?

It can be connected to Novotechnik M12 connectors and cables and Novotechnik linear sensor positioners (magnets and cursors).

How do I order the TF1 SSI inductive transducer?

The order code has six fields: stroke (mm), mechanical version, interface, signal, resolution, and connection mode. For example, TF1-0800-001-2A2-102 is the version with an 800 mm electrical range, profile, 24-bit SSI in Gray code, 5 µm resolution in Balanced mode, and an 8-pin M12x1 connector. All the options for each field are available in the order code configurator on this page.

Under what conditions does the TF1 SSI inductive transducer operate?

Operating temperature: -40 … +85 °C. Protection: IP67, with GORE membrane pressure equalization, with the connector fixed.

Properties

Feature	Specification
Lengths
Electrical range, level B	0100 … 1000 mm, in 100 mm increments; other lengths available upon request
Housing length, dimension A	level B + 76.5 mm
Mass	220 + 1.1 x B (B in mm) g
Description
Housing	Anodized aluminum AlMgSi0.5 F22, 3.3206.71
Inner casing	PA6 GF30
End flanges	Aluminum G AlSi12Cu1 (FE)
Status indicator (LED)	PC
Mounting	Adjustable flanges (included) or slot nut, e.g. M8 DIN 439 nut
Placeholder	Floating, made of plastic; or guided, made of plastic, with angular or axial articulation
Electrical connection	M12x1 8-pole shielded connector
Electronics	The connector housing is attached to the sensor housing; the housing is capacitively decoupled from the electronics.
Others	2 Multifunction LEDs as an indicator of operating voltage and status
Electrical data
Electrical range (dimension B)	0100 … 1000 mm
Protocol	24-bit and 25-bit SSI
Tickets	RS422, CLK lines galvanically isolated by optocouplers
Monoflop time™	20 µs
Coding	Gray (includes position and diagnostic data, Data+E+W), binary
Update frequency	> 10 kHz
Resolution (LSB)	1, 5 or 10 µm
Reproducibility, High precision mode, dimension B ≤ 400 mm	< 5 µm
Reproducibility, High precision mode, dimension B > 400 mm	< 8 µm
Reproducibility, Balanced mode, dimension B ≤ 400 mm	< 10 µm
Reproducibility, Balanced mode, dimension B > 400 mm	< 15 µm
Reproducibility, High speed mode, dimension B ≤ 400 mm	< 20 µm
Reproducibility, High speed mode, dimension B > 400 mm	< 40 µm
Signal propagation delay, High precision mode	< 3 ms
Signal propagation delay, Balanced mode	< 1 ms
Signal propagation delay, High speed mode	< 0.2 ms
Hysteresis, High Prec mode	≤ 5 µm
Hysteresis, Balanced mode	≤ 10 µm
Hysteresis, High speed mode	≤ 10 µm
Absolute linearity	≤ ±100 µm
Electrical zero point tolerance	±1 mm
Temperature coefficient (temperature error)	≤ 15 ppm/K (min. 0.01 mm/K)
Supply voltage	24 (18 … 32) VDC
Power supply voltage ripple	≤ 10 % Vss
No-load consumption	2.4 W
Overvoltage protection	36 VDC (permanent)
Reverse polarity protection	Yes, up to the maximum supply voltage.
Short circuit protection	Yes (outputs to GND and supply voltage up to 7V)
Ohmic load at the outlets	> 120 Ω
Clock frequency	60 … 1500 kHz
Maximum clock frequency depending on cable length	<3m: 1400kHz; < 10m: 1000kHz; <50m: 600kHz; < 100m: 350kHz; < 200m: 200kHz; < 400m: 100kHz
Insulation resistance (500 VDC)	≥ 10 MΩ
Signal with broken cable	No communication
Signal with missing placeholder (codes 2A … 2D)	Error Bit 2 = 1, signal = -2097150
Signal with position marker outside the measurement or working range	Warning Bit 1 = 1
Environmental conditions
Maximum operating speed with valid output signal	10 m/s
Maximum operating acceleration with valid output signal	200 m/s²
IEC 60068-2-27 Shock	100 g (11 ms), one stroke
Vibration IEC 60068-2-6	20 g (5 … 2000 Hz, Amax = 0.75 mm)
DIN EN 60529 protection	IP67, with GORE membrane pressure equalization, with the connector fixed
Life	Mechanically unlimited (with floating placeholder)
Working temperature	-40 … +85 °C
Storage temperature	-40 … +85 °C
Working humidity	0 … 95 % HR (non-condensing)
MTTF (IEC 60050)	150 years
Accordance	EC
Electromagnetic compatibility
EN 61000-4-2	Electrostatic discharges (ESD) 4 kV, 8 kV
EN 61000-4-3	Electromagnetic fields 10 V/m
EN 61000-4-4	Fast transients (burst) 1 kV
EN 61000-4-6	Conducted disturbances induced by RF fields 10 V rms.
EN 55016-2-3	Radiated disturbances, class B

Option	Meaning
Example: TF1-0800-001-2A2-102 = 800 mm electrical range, profile, 24-bit SSI in Gray code, 5 µm resolution in Balanced mode and 8-pole M12x1 connector.
1. Electrical range (mm)
0100 … 1000	Standard, 100 mm steps; others, on request
2 · Mechanical version
001	Profile
3 · Electrical interface
2	SSI
4 · SSI output signal (2__)
TO	SSI 24-bit, Gray
B	SSI 25 bit, Gray
C	SSI 24 bit, binary
D	SSI 25 bit, binary
5 · High precision mode
4	Resolution 1 µm
5	5 µm resolution
6	Resolution 10 µm
5 · Balanced Mode
1	Resolution 1 µm
2	5 µm resolution
3	Resolution 10 µm
5 · High speed mode
7	Resolution 1 µm
8	5 µm resolution
9	Resolution 10 µm
6. Electrical connection
102	M12x1 connector, 8 poles
The code is formed using one option from each field, in the order shown in the example. Contact us and we will confirm the exact reference.

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