Incremental encoders generate information about position, angle, and rotation counts. The resolution is defined in the number of lines or pulses per rotation, which the encoder transmits to the control unit for each rotation. The current position can be determined by the control unit by counting these pulses. A reference run can be necessary when switching on the machine.

Part Number: 1037868
Encoders Model: AFM60B-S1AA004096
OEM Spec Ref

Performance

Number of steps per revolution (max. resolution)	4,096 (12 bit)
Number of revolutions	4,096 (12 bit)
Max. resolution (number of steps per revolution x number of revolutions)	12 bit x 12 bit (4,096 x 4,096)
Error limits G	0.05° ¹⁾
Repeatability standard deviation σ_r	0.002° ²⁾

¹⁾ In accordance with DIN ISO 1319-1, position of the upper and lower error limit depends on the installation situation, specified value refers to a symmetrical position, i.e. deviation in upper and lower direction is the same.
²⁾ In accordance with DIN ISO 55350-13; 68.3% of the measured values are inside the specified area.

Interfaces

Communication interface	SSI
Initialization time	50 ms ¹⁾
Position forming time	< 1 µs
Code type	Gray
Code sequence parameter adjustable	CW/CCW (V/R̅) parameter adjustable
Clock frequency	≤ 2 MHz ²⁾
Set (electronic adjustment)	H-active (L = 0 – 3 V, H = 4,0 – U_s V)
CW/CCW (counting sequence when turning)	L-active (L = 0 – 1,5 V, H = 2,0 – Us V)

¹⁾ Valid positional data can be read once this time has elapsed.
²⁾ Minimum, LOW level (Clock +): 250 ns.

Electrical data

Connection type	Male connector, M23, 12-pin, radial
Supply voltage	4.5 … 32 V DC
Power consumption	≤ 0.7 W (without load)
Reverse polarity protection	✔
MTTFd: mean time to dangerous failure	250 years (EN ISO 13849-1) ¹⁾

¹⁾ This product is a standard product and does not constitute a safety component as defined in the Machinery Directive. Calculation based on nominal load of components, average ambient temperature 40°C, frequency of use 8760 h/a. All electronic failures are considered hazardous. For more information, see document no. 8015532.

Mechanical data

Mechanical design	Solid shaft, Servo flange
Shaft diameter	6 mm
Shaft length	10 mm
Weight	0.3 kg ¹⁾
Shaft material	Stainless steel
Flange material	Aluminum
Housing material	Aluminum die cast
Start up torque	< 0.5 Ncm (+20 °C)
Operating torque	< 0.3 Ncm (+20 °C)
Permissible shaft loading	80 N / radial 40 N / axial
Operating speed	≤ 9,000 min⁻¹ ²⁾
Moment of inertia of the rotor	6.2 gcm²
Bearing lifetime	3.0 x 10^9 revolutions
Angular acceleration	≤ 500,000 rad/s²

¹⁾ Based on devices with male connector.
²⁾ Allow for self-heating of 3.3 K per 1,000 rpm when designing the operating temperature range.

Ambient data

EMC	According to EN 61000-6-2 and EN 61000-6-3 ¹⁾
Enclosure rating	IP65, shaft side (IEC 60529) IP67, housing side (IEC 60529) ²⁾
Permissible relative humidity	90 % (Condensation not permitted)
Operating temperature range	–40 °C … +100 °C ³⁾
Storage temperature range	–40 °C … +100 °C, without package
Resistance to shocks	70 g, 6 ms (EN 60068-2-27)
Resistance to vibration	30 g, 10 Hz … 2,000 Hz (EN 60068-2-6)

¹⁾ EMC according to the standards quoted is achieved if shielded cables are used.
²⁾ For devices with male connector: with mounted mating connector.
³⁾ Stationary position of the cable.