ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
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<strong>Installation</strong> <strong>Guide</strong> <strong>ECL</strong> <strong>Comfort</strong> <strong>210</strong> / <strong>310</strong>, application <strong>A275</strong> / <strong>A375</strong><br />
2.5.7 Electrical connections, master / slave systems<br />
The controller can be used as master or slave in master / slave<br />
systems via the internal <strong>ECL</strong> 485 communication bus (2 x twisted<br />
pair cable).<br />
The <strong>ECL</strong> 485 communication bus is not compatible with the <strong>ECL</strong><br />
bus in <strong>ECL</strong> <strong>Comfort</strong> 110, 200, 300 and 301!<br />
Terminal Description Type<br />
(recomm.)<br />
30 Common terminal<br />
31* +12 V*, <strong>ECL</strong> 485 communication bus<br />
32 B, <strong>ECL</strong> 485 communication bus<br />
33 A, <strong>ECL</strong> 485 communication bus<br />
Cable 2 x<br />
twisted pair<br />
* Only for ECA 30 / 31 and master / slave communication<br />
B<br />
A<br />
B<br />
A<br />
Total cable length: Max. 200 m (all sensors incl. internal <strong>ECL</strong> 485<br />
communication bus).<br />
Cable lengths of more than 200 m may cause noise sensibility (EMC).<br />
74 DEN-SMT/DK VI.GU.L1.02 <strong>Danfoss</strong> District Energy<br />
B<br />
A<br />
B<br />
A<br />
<strong>Danfoss</strong><br />
87H2052.10
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