The M115I-M10A is a multi-turn programmable decoder. It takes the input from multi-turn resolver like AVG Automation's series RL210, which is mounted on the shaft of the rotating machinery. The M 115 I-M 10A decodes the resolver signals using highly noise-immune ratio metric-decoding; scales the digital data, based on the programmed scale factor; and displays it on the front panel.

The position information is also made available to the output port in BCD format for connecting to a remote display or a PLC. In each of the three PLS channels, the position information is continuously compared to programmable ON and OFF limits called "setpoints". The outputs are activated when limit conditions are satisfied. All outputs of the M 115 1 -M I OA are optically isolated and the resolver inputs are differential, insuring extremely reliable operation of the unit even in the harshest of industrial conditions.

The M 115 1 -M I OA will decode the shaft angle to 1/4096th of a revolution (12-bit resolution) and turns up to gear ratio. The decoder also features motion detection, three channels of PLS outputs, two safety limit outputs, and PLC synchronization/handshaking for the BCD outputs, upper and lower-safety-limit to outputs.

Simple Front-Panel Programming
The M1151 -MI0A is fully front-panel programmable for all variables and yet secure against any unauthorized program changes. Opening of an external user-provided keyswitch inhibits any program changes on the front panel.

No Batteries, Nonvolatile Memory
Nonvolatile EEROM memory retains information indefinitely after power loss or machine shutdown, eliminating batteries and related hazards.

Replacing Electromechanical Selsyn Systems
In new installations, the M1 151-MIOA together with AVG Automation's brushless resolver series RL210 is a 100% solid-state replacement for electromechanical Selsyn systems.

PC-Handshake for PLC Synchronization
On an external data transfer command from a PLC, the digital shaft angle position can be "frozen" at the input of the PLC in order to ensure that the data is not sampled during transition from one angle to the next and that the PLC always reads valid data.