Wire cross section for sensor connections: Min. 0.4 mm².
Total cable length: Max. 200 m (all sensors incl. internal ECL 485
communication bus)
Cable lengths of more than 200 m may cause noise sensibility (EMC).
2.5.6 Electrical connections, ECA 30 / 31
Terminal
ECL
Terminal
ECA 30 / 31
Description
Type
(recomm.)
30
4
31
1
Twisted pair
32
2
33
3
Twisted pair
Cable 2 x
twisted pair
4
5
Ext. room temperature
sensor*
ESM-10
* After an external room temperature sensor has been connected,
ECA 30 / 31 must be repowered.
The communication to the ECA 30 / 31 must be set up in the ECL
Comfort controller in 'ECA addr.'
The ECA 30 / 31 must be set up accordingly.
After application setup the ECA 30 / 31 is ready after 2–5 min. A
progress bar in the ECA 30 / 31 is displayed.
ECA information message:
‘Application req. newer ECA’:
The software (firmware) of your ECA does not comply with the
software (firmware) of your ECL Comfort controller. Please contact
your Danfoss sales office.
72 | © Danfoss | 2017.09
VI.GU.L2.02
Operating Guide ECL Comfort 210/296/310, application A275/A375