SICK AFS60A-S4AM065536 SSI Singleturn Encoder, 16 Bit

A singleturn absolute encoder with 16-bit SSI output and cable connection

The SICK AFS60A-S4AM065536 is a singleturn absolute encoder: it reports a unique angle within each shaft revolution with a resolution of 65,536 steps, and sends it over an SSI link in Gray code. The position is known immediately at power-up, which suits rotary tables, valve actuators, antenna and camera positioners and any axis where a single revolution covers the whole travel.

The device has an integrated 5 m cable instead of a plug. The universal cable exit can be laid without a bend in radial or axial direction, which helps in tight machine housings. The 60 mm face-mount flange and 10 mm shaft are the same as on the rest of the AFS/AFM60 range.

Technical specifications

Singleturn or multiturn?

A singleturn encoder has no memory of how many times the shaft has turned, so it is the right choice when the mechanical travel is less than one revolution or when a gearbox maps the full stroke to one turn. For longer travel, SICK offers the multiturn AFM60 versions in the same family, which add 4,096 revolutions of range; see the encoder pages in the encoders category.

The 0.03 degree error limit is the figure printed for this version, tighter than the 0.05 degree quoted for some siblings. Shock and vibration ratings (60 g and 20 g) are a step lower than for the connector versions, so check them against the machine environment.

Ordering notes

In use, the controller clocks out the 16-bit Gray-coded word at up to 2 MHz and converts it to binary. The electronic SET input lets a technician define the mechanical zero after installation, and the counting direction input removes the need to swap wires when the encoder is mounted on the opposite side of a drive. The shielded cable should be kept away from motor leads, because the stated EMC performance assumes screened wiring.

Confirm before ordering: the SSI frame length that your controller expects (16 bit here), Gray coding, cable length, the shaft and flange dimensions of the host machine, and any coupling needed to absorb misalignment. An incremental alternative from another maker is the Autonics E40S6.

How the SICK AFS60A-S4AM065536 works

The AFS60A-S4AM065536 senses the angle of its shaft. Inside, a coded disc turns with the shaft and is read by optical sensors. The code gives a unique value for each angle, so the encoder always knows where it is, even after a power loss. There are 65,536 steps per turn, or 16 bits. The value is sent to the controller over an SSI link in Gray code. The controller clocks the data out, which keeps the wiring simple.

Where the SICK AFS60A-S4AM065536 is used

• Rotary tables
• Valve actuators
• Antenna and camera positioners
• Axes where one turn covers the whole travel
• Machines that need position at power-up

Selection checklist for the SICK AFS60A-S4AM065536

• Singleturn or multiturn travel
• Resolution of 16 bit
• SSI interface and clock rate
• Supply from 4.5 to 32 V
• Cable connection of 5 m
• 10 mm shaft with flat
• Face-mount flange of 60 mm
• Operating speed and temperature

Installation, commissioning and maintenance notes for the AFS60A-S4AM065536

Fit the encoder to the flange and join the shaft with a flexible coupling so that axial and radial loads stay low. Wire the cable to the controller, keeping it away from power cables. Set the zero position with the SET input and check the counting direction with the CW/CCW input. Check the cable and mounting for wear.

Requesting a quotation for the SICK AFS60A-S4AM065536

Please send the interface, the resolution, the shaft, the cable length and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

AFS60A-S4AM065536 accuracy

Error limits are 0.03 degrees. Repeatability is 0.002 degrees.

AFS60A-S4AM065536 interface

The SSI clock runs up to 2 MHz. Initialization takes 50 ms.

AFS60A-S4AM065536 mechanics

It runs up to 9,000 per minute. Shaft load is 80 N radial and 40 N axial.

AFS60A-S4AM065536 environment

Protection is IP65 on the shaft side and IP67 on the housing side. Temperature range is minus 40 to plus 100 degrees C.

AFS60A-S4AM065536 weight

The encoder weighs 0.3 kg.

Encoder records for the AFS60A-S4AM065536

Record the part number, the zero position and the counting direction.

Choosing the right AFS60A-S4AM065536 type

Choose the multiturn type of the same family when travel exceeds one turn.

AFS60A-S4AM065536 direction input

A CW/CCW input reverses the counting direction.

AFS60A-S4AM065536 bearing life

Bearing life is 3.0 times 10 to the power 9 revolutions.

AFS60A-S4AM065536 cable exit

The universal cable exit can be laid radially or axially without a bend.

Documents and quotation

The attached file is the unaltered SICK data sheet for AFS60A-S4AM065536 (part no. 1061699), with the technical data, certificates and dimensional drawing. For a quotation, send the type code and quantity to Seven Star LLC, an independent supplier in Muscat.