5 Commissioning
56 Festo – P.BE-CPX-CMAX-SYS-EN – en 2017-09b – English
5.5 Notes on operation
5.5.1 Control of the CMAX
Description of the I/O data on control of the CMAX and flow charts for programming
è Communication profile description, P.BE-CPX-CMAX-SYS-....
5.5.2 General instructions on operation
Warning
High acceleration forces of the connected actuators!
Uncontrolled movements can cause collisions, which can lead to serious injury.
Switching on:
Always first switch on the load voltage supply for valves and then the compressed
air supply.
Switching off:
Before carrying out mounting, installation and maintenance work, place the system
in a safe status (e.g. by placing the drive in a safe position and locking it).
Note
Damage may occur if maximum permitted limits, such as loads, mass moments of iner
tia and swivel frequencies, are exceeded.
Make sure that the specified limits of the drive used are observed (è Operating
instructions for the drive).
Positioning commands
After switching on the operating voltage, you must wait until the CMAX is completely initialised, no
error is reported (è Fig. 5.1) and the inputs SCON.ENABLED and SCON.READY supply logic 1. After
that, the corresponding positioning command can be executed via the control bytes (module output
data) of the corresponding positioning command (è Communication profile description,
P.BE-CPX-CMAX-SYS-...).
Homing run after POWER ON
Only for incremental displacement encoder: After renewed switch-on of the CMAX operating voltage,
the relationship between measured value and current position is lost. For that reason, you must always
carry out homing after a renewed switch-on.
After the power supply is switched on again, with incremental measuring systems, only
the positioning commands homing (CPOS.HOM), jogging (CPOS.JOGx) and the movement
test are permitted. Other positioning commands result in error E10 (drive is not refer
enced è Communication profile description, P.BE-CPX-CMAX-SYS-...).
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