AMG11 S29Z0 SSI Encoder with 29-Bit Multiturn Scaling

For AMG11S29Z0, EncoderWorks can provide a custom compatible replacement solution for SSI absolute multiturn feedback systems where the key checks are 29-bit SSI word length, clock/data timing, 13-bit singleturn scaling, and 16-bit multiturn rollover. Unlike a Profibus version, this replacement is not mainly a bus-parameter task; it must be verified at the controller’s SSI input, where wrong clock frequency, wait time, or bit interpretation can produce stable but incorrect position data. Typical production lead time: 15 working days.

This model belongs to the AMG 11 absolute encoder series with EURO flange B10 and ø11 mm solid shaft. In the AMG11S29Z0 configuration, the interface is SSI, the absolute share is 13-bit singleturn plus 16-bit multiturn, and the Z0 code means no additional incremental output. Replacement work should therefore focus on the SSI frame, Gray-code reading, multiturn value structure, shielded clock/data wiring, and mechanical coupling alignment.

System Limits

The main system limit is SSI timing. The controller must read the encoder with the correct clock frequency, data length, and wait period. If the SSI frame is configured for a shorter word, or if the sampling window is wrong, the controller may read shifted bits or an apparently stable position value that does not match the shaft position.

The second limit is 29-bit multiturn interpretation. This model combines 8192 steps per revolution with up to 65536 revolutions. A replacement should be tested through one full revolution and across several turns, because a system can look correct in singleturn movement but fail when the multiturn count changes.

The mechanical limit is the ø11 mm solid shaft and EURO flange B10 mounting. Coupling misalignment, axial preload, or radial force can shorten bearing life. SSI clock/data shielding should also be checked when the cable runs near inverter, motor, brake, or contactor wiring.

Wiring & Installation

Before removing the existing encoder, record the SSI clock and data wiring, controller word length, clock frequency, wait time, Gray-code setting, supply voltage, shield connection, and mechanical zero position. The replacement should be checked against the controller’s SSI input configuration before startup.

After installation, confirm stable SSI communication and correct position reading from the controller display. Then test direction, zero alignment, one full shaft revolution, and multiturn counting across several turns.

Custom Compatible Solution

EncoderWorks can configure the replacement around the installed SSI system:

• Match SSI clock/data behavior, 29-bit word length, wait time, and controller-side sampling
• Verify 13-bit singleturn, 16-bit multiturn, Gray-code reading, direction, and zero alignment
• Adapt the EURO flange B10, ø11 mm solid shaft, connection format, and mechanical mounting requirement
• Review shield grounding, cable routing, SSI receiver margin, and shaft coupling load for stable operation

Key Data