Alarm - Danfoss ECL Comfort 310 Operating Manual

Operating Guide ECL Comfort 310, application A377

5.11 Alarm

The section "Alarm" describes specific application related issues.
Application A377 offers different types of alarms:
Type: Description:
1
Actual flow temperature differs from the desired
flow temperature
2
Disconnection or short-circuiting of a
temperature sensor or its connection
The alarm functions activate the alarm bell symbol.
The alarm functions activate A1 (relay 6 in the ECL 310 controller):
The alarm relay can activate a lamp, a horn, an input to an alarm
transmitting device etc.
The alarm symbol / relay is activated:
• (type 1) as long as the alarm reason is present (automatic reset).
• (type 2) even if the alarm reason disappears again (manual
reset)
Alarm type 1:
If the flow temperature deviates more than the set differences from
the desired flow temperature, the alarm symbol / relay will be
activated after a set delay.
If the flow temperature becomes acceptable, the alarm symbol /
relay will be de-activated.
Alarm type 2:
Selected temperature sensors can be monitored.
Should the connection to the temperature sensor be disconnected,
short-circuited or the sensor gets defective, the alarm symbol
/ relay will be activated. In the "Raw input overview" (MENU >
Common controller settings > System > Raw input overview) the
sensor in question is marked and the alarm can be reset.
VI.GU.F6.02
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