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6
Operation
Festo – EXCM-10/-30-...-E-EN – 1612b – English
45
6.3.3
Examples
Note
If a malfunction occurs during the process (
è
Enable operation
Requirements:
–
The drive was switched on and a malfunction is not present.
–
The inputs of the emergency stop interface [X4] are active, that is, +24 V must be applied to TO and
ES and 0 V to RB (
è
4.2.5 Emergency stop interface [X4]).
1. Establish the I/O interface as a control interface via the FCT by selecting “Digital I/O” on the control
interface page, then “saving”, and switching the controller off and back on again.
–
As soon as the controller is ready, a low signal is present at Pin 1 and 14 (24VL = 1 and MC = 1).
2. Enable the drive and operation by applying a low signal at Pin 9 (ENABLE).
–
After the drive (controller) is enabled, a low signal is applied to Pin 1 (ENABLED = 1).
The operation is enabled.
Execute homing
Requirements:
–
The drive (controller) is enabled and a malfunction is not present.
–
The position of the axis zero point AZ was correctly parameterised via the FCT.
Homing is executed by selecting and starting record number 0.
1. Select homing (record number 0) by applying a high signal (DI1 … 5 = 0) to all five binary-coded
inputs (Pin 2 … 6).
2. Apply a low signal to Pin 8 (START) to start homing.
–
Homing (record 0) is taken over and started through a rising edge at Pin 8.
–
A low signal is applied to Pin 13 as soon as homing has been started (ACK = 1).
–
As soon as the reference position is reached, a low signal is applied to Pin 14 (MC = 1).
Start of a record (record selection)
Requirements:
–
The drive (controller) is enabled and a malfunction is not present.
–
Homing has been executed successfully.
1. Select a record by applying signals to the binary coded inputs (Pin 2 … 6) corresponding to the de
sired record number.
–
Example for the selection of record number 6:
Apply a low signal (DI2 and DI3 = 1) to Pin 3 (value 2) and Pin 4 (value 4).
2. Apply a low signal to Pin 8 (START) to start the positioning job of the selected record.
–
The selected record number is taken over through a rising edge at Pin 8 and the positioning job
is started.
–
A low signal is applied to Pin 13 as soon as the positioning job has been started (ACK = 1).
–
As soon as the target position is reached, a low signal is applied to Pin 14 (MC = 1).