6Functions
58 Festo – GDCP-CMMP-M0-FW-E N – 1304NH
6.6.8 2nd measuring system a t input [X2A]
The input [X2A] can only be used for motors with encoder. After switc h-on (24 V voltage off or reset),
homing must be executed first.
The interface [X2A] supports all commonly available incremental resolvers, single-pole or multipolar.
6.6.9 Commis s ioning
After parameterisation, the system is c ommissioned.
Before the first enable, the counting direction of the motor and of the external encoder must be
checked.
To do this, shift the moving mass by hand and observe the change in the FCT (online area – operate).
The actual position is recorded by the external encoder, and the speed is c alculated from the encoder in
the motor. Both values c hange as a result of shifting by hand. The direc tion of the system can be selec-
ted freely a nd is usually simply selected corresponding to the application. After selection of a suita ble
zero point, shift the axis by hand in a positive direction. If the actual position becomes smaller rather
than larger, the direction of the 2nd measuring system must be changed. If the speed is negative, the
direction of rotation of the moto r must be reversed.
After each change, download, save and restar t must be done.
For motors with integrated brake, the brake can be manually opened with the button Release brake.
Note
For vertical axes, the moving masses must be secured against falling.
After that, the customary commissioning is c ontinued.
Usually, the controller data must be adjusted manually to achieve a good positioning. For longer
toothed belt axes, reinforcement of the position controller must not be too large, since the system
would otherwise swing up.
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