Mounting and wiring
EL70x1 49Version: 4.4
4.6 UL notice - Compact Motion
Application
Beckhoff EtherCAT modules are intended for use with Beckhoff’s UL Listed EtherCAT Sys-
tem only.
Examination
For cULus examination, the Beckhoff I/O System has only been investigated for risk of fire
and electrical shock (in accordance with UL508 and CSA C22.2 No. 142).
For devices with Ethernet connectors
Not for connection to telecommunication circuits.
Notes on motion devices
• Motor overtemperature
Motor overtemperature sensing is not provided by the drive.
• Application for compact motion devices
The modules are intended for use only within Beckhoff’s Programmable Controller sys-
tem Listed in File E172151.
• Galvanic isolation from the supply
The modules are intended for operation within circuits not connected directly to the sup-
ply mains (galvanically isolated from the supply, i.e. on transformer secondary).
• Requirement for environmental conditions
For use in Pollution Degree 2 Environment only.
Basic principles
Two UL certificates are met in the Beckhoff EtherCAT product range, depending upon the components:
• UL certification according to UL508
Devices with this kind of certification are marked by this sign:
Almost all current EtherCAT products (as at 2010/05) are UL certified without restrictions.
• UL certification according to UL508 with limited power consumption
The current consumed by the device is limited to a max. possible current consumption of 4 A. Devices
with this kind of certification are marked by this sign:
Almost all current EtherCAT products (as at 2010/05) are UL certified without restrictions.
Application
If terminals certified with restrictions are used, then the current consumption at 24 V
DC
must be limited
accordingly by means of supply
• from an isolated source protected by a fuse of max. 4A (according to UL248) or
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