General information, 5 i/o functions and device control, Limit switch – Festo Контроллеры двигателя CMMS-ST User Manual

Page 32: Sample input, I/o functions and device control

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3. Product description

32

Festo.P.BE-CMMS-ST-G2-HW-EN

1008NH

For the feedback message “Speed reached”, the comparison speed is set to zero and only
a message range is placed in the message window.

General information

• The general limitations and settings via FCT are also valid during synchronisation.
• Axle limitations, speeds, message windows, etc.
• When catching up to a leading master, the motor accelerates to the power limit.
• Up to FW 1.2.0.1.2: During resynchronisation on a forward-running master, the

message “Setpoint reached” comes as soon as the speed within the set message
window is reached. If overshooting occurs during the catch-up phase or the message
window is set too low, the message may come several times or flicker.

• Starting with FW 1.3.0.1.7, the message “Position synchronized” is output at DOUT2.

The deviation is configured via the tolerance window for “Motion Complete” in the
FCT.

3.3.5 I/O functions and device control

Limit switch
The limit switches serve to limit the range of motion for safety reasons. During homing,
one of the two limit switches can serve as reference points for positioning control.

Sample input
If a field bus is used for activation, a high-speed sampling input is available for time-
critical tasks for various applications (position sensing, special applications, ...).



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