9 Opera tional functions
198 Festo – GDCP-CMMS/D-FW-EN – 1404NH – English
9 Ope rational functions
9.1 Encoder emulation (master operation)
9.1.1 Function: Encoder emulation
During encoder emulation (master operation), the motor controller can output the current ac tual posi-
tion (rotor position) as incremental signals (A/#A/B/#B/N/#N) at the encoder output [X10]. The incre-
mental signals can be used by a connected slave device as synchronisation signals. Depending on th e
cable length, up to 32 slave motor controllers can be controlled via the encoder output (synchronisa-
tion interface [ X10] ) of the master motor controller.
The incremental signals “A/#A/B/#B/N/#N” from the synchronisation inter-
face [ X10/X10.1/X10.2] can either be used as an encoder input for synchronisation or as
an encoder output for encoder emulation (default setting).
Output encoder emulation through encoder output
CMMS/CMMD
Encoder signal: 5 V
- A/#A/B/#B/N/#N
Control section
X10
X10.1
X10.2
Encoder emulation
(master operation)
Synchronisation input
Controllers
Motor controller CMM...
MasterSlave
Encoder output
Fig. 9.1 Overview: Output encoder e mulation via e ncoder signals