Danfoss ECL Comfort 210 Operating Manual page 11

Operating Guide ECL Comfort 210/296/310, application A237/A337
Application A237.2 and A337.2, in general:
Unused input can, by means of an override switch, be used to
override the schedule to a fixed 'Comfort' or 'Saving' mode.
Modbus communication to a SCADA system can be established. In
ECL Comfort 310 the M-bus data can furthermore be transferred
to the Modbus communication.
A237, in general
Flow / energy limitation.
ECL Comfort 210:
The subtypes A237.1 and A237.2 can utilize the flow / power signal
coming as a pulse signal.
ECL Comfort 296:
The subtypes A237.1 and A237.2 can utilize the flow / power signal
coming as a pulse signal or an M-bus signal.
ECL Comfort 310:
The subtypes A337.1 and A337.2 can utilize the flow / power signal
coming as an M-bus signal.
Alarm
A237.1:
Alarm A1 (= relay 4) can be activated:
• if the actual flow temperature differs from the desired flow
temperature
• if a temperature sensor or its connection disconnects / short
circuits. (See: Common controller settings > System > Raw
input overview)
A237.2:
No alarm function present
A337.1, A337.2:
Alarm A1 (= relay 6) can be activated:
• if the actual flow temperature differs from the desired flow
temperature
• if a temperature sensor or its connection disconnects / short
circuits. (See: Common controller settings > System > Raw
input overview)
Input configuration
Inputs (as from S7 and up) which are not part of the application
can be configured to be Pt 1000, 0 - 10 Volt or Digital input. This
feature makes it possible to communicate extra signals, such as
temperatures, pressures, ON / OFF conditions, via Modbus and
ECL Portal.
The configuration is done by means of the ECL Tool (free software
for download) or directly in a dedicated menu in the ECL Portal.
Depending on system type, it is recommended to change some
factory settings individually in order to optimize the functionality.
These setting changes, if required, are listed below the system
types in the section 'Identifying the system type' .
When the A237 has been uploaded the ECL Comfort controller
starts in Manual mode. This can be used for checking the controlled
components for correct functionality.
VI.LG.R3.02
© Danfoss | 2017.05 | 11