Mounting and wiring
EL28xx-xxxx
74
Version: 2.2
For devices with Ethernet connectors
Not for connection to telecommunication circuits.
Basic principles
Two UL certificates are met in the Beckhoff EtherCAT product range, depending upon the components:
1. UL certification according to UL508. Devices with this kind of certification are marked by this sign:
2. UL certification according to UL508 with limited power consumption. The current consumed by the de-
vice 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. 4 A (according to UL248) or
• from a voltage supply complying with
NEC class 2
.
A voltage source complying with
NEC class 2
may not be connected in series or parallel with another
NEC class 2
compliant voltage supply!
These requirements apply to the supply of all EtherCAT bus couplers, power adaptor terminals, Bus
Terminals and their power contacts.
Содержание EL28 Series
Страница 1: ...Documentation EL28xx xxxx Digital HD Output Terminals 2 2 2019 01 03 Version Date...
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Страница 72: ...Mounting and wiring EL28xx xxxx 72 Version 2 2 Fig 48 Other installation positions...
Страница 106: ...Commissioning EL28xx xxxx 106 Version 2 2 Fig 95 Incorrect driver settings for the Ethernet port...
Страница 117: ...Commissioning EL28xx xxxx 117 Version 2 2 Fig 114 EtherCAT terminal in the TwinCAT tree left TwinCAT 2 right TwinCAT 3...