MC1-2800 SAE J1939 Magnetic Multi-Turn Absolute Encoder

Manufacturer: Novotechnik
Category: Displacement, Encoder, Absolute Encoder, Absolute Encoder Fieldbus, Multi-turn Absolute Encoder, Absolute Magnetic Encoder, Angular displacement sensor, SENSORS

Novotechnik MC1-2800 SAE J1939 Magnetic Absolute Encoder. Non-contact magnetic multi-turn sensor, Ø30 mm.

True-Power-On magnetic multi-turn absolute rotary encoder (GMR magnetoresistive technology), contactless, Ø30 mm. Measuring range 44 revolutions (15840°), resolution up to 16 bits per revolution. Detects revolutions without power or backup battery. IP54 to IP67 protection depending on the mechanical version.

Key points

Contactless, magnetic
True-Power-On System: Counts laps even without power; patented non-volatile technology, no gears or batteries
Push-on coupling or marked shaft
IP54 to IP67 protection
Meets European E1 requirements

Technical Frequently Asked Questions

What can be connected to the MC1-2800 SAE J1939 magnetic absolute encoder?

It can be connected to Novotechnik M12 connectors and cables and Novotechnik rotary sensor couplings and accessories.

How do I order the MC1-2800 SAE J1939 magnetic absolute encoder?

The order code has 6 fields: mechanical version, revolutions, interface, parameters, speed, and connection. For example, MC1-2832-244-J14-232 is the version with a 6 mm shaft, IP65 rated surface, 44 revolutions (15840°), CAN SAE J1939 with 1 position and 1 speed, 250 kBaud, and a 1 m shielded 4-pole cable. All the options for each field are available in the order code configurator on this page.

Under what conditions does the MC1-2800 SAE J1939 magnetic absolute encoder operate?

Operating temperature: -40 … +85 °C; -25 … +85 °C (M12 connector). Protection: IP54 / IP65 / IP67 depending on the mechanical version.

Properties

Feature	Specification
Extent
Measured variables	Position, speed, temperature, and supply voltage
Number of channels	1
Measuring range	44 turns (15840°)
Speed measurement range	0 … 546 rpm
Position resolution (in 360°)	16 bits
Speed resolution	0.1°/s
Linearity (*)	≤ ±1°
Repeatability (*)	≤ ±0.1°
Hysteresis (*)	≤ ±0.5°
Temperature error	±0.36°
Interface and protocol
Protocol	CAN SAE J1939
Origin address	128 … 247 (dynamic address assignment)
Transmission speed	250, 500 kBaud
Signal propagation delay	< 0.3 ms
Functions and supervision
Programmable parameters	e.g. preset, counting direction, resolution, transmission speed, transmission mode, transmission cycle, source address
State oversight functions	Operating time, temperature, supply voltage
Start-up time	≤ 70 ms
Diagnosis	Activated (in case of error, the position signal falls outside the plausible signal range)
Feeding and protection
Supply voltage Ub	12/24 VDC (8 … 32 VDC)
No-load current consumption	≤ 60 mA
Overvoltage protection	45 VDC (permanent)
Reverse polarity protection	Yes (power lines and outlets)
Short circuit protection	Yes (all outputs connected to GND and the supply voltage)
Insulation resistance (500 VDC)	≥ 10 MΩ
Internal bus termination	Without (120 Ω internal load resistance available upon request)
Environmental conditions
Working temperature	-40 … +85 °C; -25 … +85 °C (M12 connector)
Vibration IEC 60068-2-6	20 g, 5 … 2000 Hz, Amax = 0.75 mm
IEC 60068-2-27 Shock	50 g, 6 ms
DIN EN 60529 protection	IP54 / IP65 / IP67 depending on the mechanical version
Insensitivity to DC magnetic fields	< 15 mT
Life (mechanical)	> 50 million movements
MTTF (IEC 60050)	440 years
Electromagnetic compatibility
ISO 13766-1	Construction machinery
ISO 14982	Agricultural and forestry machinery
European requirements E1	Meets E1 requirements
EN 61000-4-2 ESD (contact/air discharge)	4 kV, 8 kV
EN 61000-4-3 Electromagnetic fields (RFI)	30 V/m
EN 61000-4-4 Fast transients (burst)	1 kV
EN 61000-4-6 Conducted disturbances (HF fields)	10 V ef.
EN 55016-2-3 Radiated disturbances	Industrial and residential area
Materials and mechanical data
Housing	Temperature-resistant PPS-GF plastic
Axis	Stainless steel X8CrNiS18-9 (No. 1.4305)
Bearing	Sintered bronze bushing
Fixation	2 M4 screws with washers
Electrical connection	2x 2x 0.34 mm² (AWG 22) TPE shielded cable / M12x1 connector, A coding, with cable length L = 0.15 m
Mechanical tour	Continuous
Allowable load on the shaft, static or dynamic	20 N (axial / radial)
Starting torque	typical ≤ 3 Ncm
Maximum working speed	800 rpm
Weight (without connection)	approx. 50 g

Option	Meaning
Example: MC1-2832-244-J14-232 = 6 mm shaft with IP65 flat, 44 turns (15840°), CAN SAE J1939 with 1 position and 1 speed, 250 kBaud and 1 m shielded 4-pole cable.
1 · Mechanical version
2802	6 mm shaft with flat surface, IP54
2832	6 mm shaft with flat surface, IP65
2862	6 mm shaft with flat surface, IP67
2821	Push-on coupling, IP54
2841	Push-on coupling, IP65
2871	Push-on coupling, IP67
2 · Turns of the output characteristic
244	Measuring range: 44 turns (15840°)
3 · Interface
J	CAN SAE J1939
4 · Interface parameters
1	1x position, 1x speed
5 · Transmission speed
3	500 kBaud
4	250 kBaud
6. Electrical connection
232	4-pole cable, shielded, L = 1 m
236	4-pole cable, shielded, L = 3 m
240	4-pole cable, shielded, L = 5 m
511	5-pin M12x1 connector with shielded cable, L = 0.15 m
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.