Electrical Installation - Festo EPCO-16 Instrucciones De Utilizacion

EPCO
Installation of external accessories
To protect the end positions against uncontrolled overrunning:
• Check whether proximity sensors are necessary (as safety limit switches or hardware limit
switches). This is only possible for the EPCO-...-A with integrated magnet.
If proximity switches (sensors) are used:
• Use proximity sensors with normally-closed function.
These protect the EPCO from overrunning the end position if the proximity sensor cable is fractured.
• To mount the proximity sensors use a mounting kit or a sensor
rail ( 10 Accessories). These are bonded directly to the cylin-
der profile ( Assembly instructions for the accessories).
• Avoid external influences from magnetic or ferritic parts in the
vicinity of the proximity sensors (minimum distance of 20 mm
from ferritic parts).
5.2

Electrical installation

Warning
If the piston rod is moved externally, open, dangerous voltages may occur across the
electrical connections (generator principle).
• Make sure that the piston rod is only moved with wired connections.
Note
If unused plug connectors are touched, there is a danger that damage may occur to the
EPCO or to other parts of the system as a result of ESD (electrostatic discharge). Place
protective caps on unused terminals to prevent such discharges.
Note
To maintain EMC security:
The maximum length of the individual connection cables must not exceed 30 m.
1. Make sure the controller is switched off and that it is prevented from being restarted. Cancelling the
enable signal on the controller is not sufficient.
2. Connect the motor on the EPCO completely to the controller as shown in the following tables. The
pre-assembled cables from Festo (
well as screening of the motor/encoder cable with earth contact on both sides.
22
10 Accessories) offer sufficiently large cable cross sections as
Fig. 5
Festo – EPCO-Z6 – 1207a English