Safety Instructions For Maintenance Work; Requirement For Ul508 And Use Conforming To En 61131 - Festo CECX-X-C1 Series Manual

2.4

Safety instructions for maintenance work

Before opening the device:
1. Disconnect the power supply
2. Disconnect the interface connections
ATTENTION!
!

The device may only be opened by qualified personnel and only main-
tenance activities expressly approved by Festo may be performed (see
chapter "Service notes"). Any other manipulations to the device will
result in loss of warranty.
2.5

Requirement for UL508 and use conforming to EN 61131

The modules of the CECX modular control system are defined as "open
type" equipment (according to UL508) or as "offenes Betriebsmittel" (ac-
cording to EN 61131) and must therefore be installed in a switch cabinet.
System manual CECX / Safety notes
CECX-II 2-5