Danfoss ECL Comfort User Manual page 35

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Service parameter(s) 140
140 Alarm input selection
Circuit Setting range
II
Determine whether relay input A5 of the alarm module is to
register the enabling and disabling signal from the energy supply
company or to be used as an ordinary alarm input.
0:
The alarm input module receives no signal
from the energy supply company. Relay A5
in the alarm module is disposable for other
purposes. An alarm is displayed as soon as
it is registered by relay A5. In order to return
to normal operation, the alarm must be
acknowledged.
1: The alarm input module receives the
enabling or disabling signal for the heat
pump. An alarm is not displayed.
An alarm is registered when 230 V a.c. is applied to a relay
(A1 ... A5). The alarm module has the code no. 087B1679.
Acknowledgement of alarms, see section 1c.
The grey
side of the
ECL Card
Factory setting
0 / 1 1
Service parameter(s) 140
The alarm module is connected via sensor input (S6) to terminals
16 and 22. The module has 5 relays for the registration of the
various alarms. The assignment could look like this:
A1: Motor protection failure, compressor
Alarm input A1 registers that the motor protection has caused
a cut-out (230 V a.c.). The heat pump (compressor I and ground
coil (brine) pump P3) is blocked until the alarm has been
acknowledged. The electric heater or the boiler is enabled. Alarm
input A1 is stored in the alarm memory.
A2: Motor protection failure, ground coil (brine) pump (P3)
Alarm input A2 registers that the motor protection has caused a
cut-out (230 V a.c.). The electric heater or the boiler is enabled for
bivalent operation. Alarm input A2 is stored in the alarm memory.
A3: Disposable alarm input
Alarm input A3 registers an alarm. The heat pump (compressor I
and ground coil (brine) pump P3) is blocked until the alarm has
been acknowledged. The electric heater or boiler is enabled for
bivalent operation. Alarm input A3 is stored in the alarm memory.
If a second or third start of the heat pump is successful (without
a high-pressure cut-out), the alarm memory will not be stated as
alarm input A3.
A4: High-pressure failure
Alarm input A4 registers a high-pressure cut-out (230 V a.c.) when
the pressure control breaks the safety circuit and cuts out the
compressor directly. The heat pump (compressor I and the ground
coil (brine) pump P3) is cut-out. The electric heater or the boiler
for bivalent operation is enabled. When the setting in line 85
(Application type selection) is 0, the charging pump (P2) remains
cut-in or cut-out. When the time set in line 91, Forced standstill
period of compressor I after cut-out, has elapsed, a second and
also a third start of the heat pump will be initiated, if necessary. If
the third start also results in a high-pressure cut-out, alarm input
A4 is stored in the alarm memory and the heat pump (compressor
I and the ground coil (brine) pump P3) is blocked until the alarm
has been acknowledged. The electric heater or boiler is enabled
for bivalent operation.
If a second or third start of the heat pump is successful (without
a high-pressure cut-out), the alarm memory will not be stated as
alarm input A4.
A5: Enabling and disabling signal for the heat pump
• If the setting in line 140 is 1, alarm input A5 will be directly
connected to the energy supply company and it will register
the enabling signal (230 V a.c.) and disabling signal (0 V a.c.) for
the heat pump (compressor I and ground coil (brine) pump P3).
The alarm input A5 is not registered in the alarm memory and it
is not necessary to acknowledge the alarm.
• If the setting in line 140 is 0, alarm input A5 is used as an
ordinary alarm input, i.e. alarm input A5 registers a failure (230
V a.c.). The heat pump (compressor I and the ground coil (brine)
pump P3) is blocked until the alarm has been acknowledged.
The electric heater or boiler is enabled for bivalent operation.
Alarm input A5 is stored in the alarm memory.
32k
The grey
side of the
ECL Card