Specifications

The M1151-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 M1151-M10A decodes the
resolver signals using highly noise-immune ratiometric-decod-
ing; scales the digital data, based on the programmed scale fac-
tor; 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 informa-
tion is continuously compared to programmable ON and OFF
limits called "setpoints". The outputs are activated when limit-
conditions are satisfied. All outputs of the M1151-M10A are
optically isolated and the resolver inputs are differential, insur-
ing extremely reliable operation of the unit even in the harsh-
est of industrial conditions.
The M1151-M10A 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-M10A 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 M1151-M10A 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.
THE M1151-M10A
M1151-M10A PROGRAMMABLE
RESOLVER DECODER
MULTI-TURN PROGRAMMABLE RESOLVER DECODER WITH LIMITS
◆ Fully absolute position; no loss of position under
power loss
◆ Multi-turn (dual) resolver as position sensor
◆ Programmable gear ratio (8, 16, 32, 64, 128, or
256:1 gear ratio)
◆ Fail-safe broken resolver cable fault output
◆ Ideal for shut-height indication on process
◆ Very-easy-to-calibrate—no calculations required
◆ Fail-safe upper- and lower-safety-limit outputs
◆ Three PLS outputs
◆ Two Safety Limit outputs
◆ Motion output
A-45
800-TEC-ENGR
www.avg.net
Position Transducers/Sensors
SECTION
A