ECKELMANN Case Controller UA 4 E Series, Инструкция по эксплуатации

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Firmware V3.13 21.04.2021 458/466
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11.1.8 No required sensor alarm
If the controller detects that controllers indispensable for regulation are not connected (evaporator output
sensor, evaporator input sensor in the absence of t
0
from the pack controller; return air and supply air sensor
simultaneously), then the alarm Sensor Break EEV Z1/2 is triggered.
11.1.9 Stall detect alarm
EEV control stalled. This alarm is generated when the Stall Detect state occurs over a period of 3 restart
repeats x 10 minutes = 30 minutes. Alarm is generated with Prio 0.
11.1.10 Implausible opening position alarm
Check OD (opening degree) alarm is generated in occurrence of either of the following conditions:
Superheating drops below the minimum level for 30 minutes and defrosting is not due.
This generally occurs when the solenoid valve for the refrigerant is permanently open, although the
controller wants to shut the valve.
100% valve opening degree is maintained for 30 minutes while temperature on sensor R5.x is greater than
the return air setpoint. No alarm takes place if sensor R5.x is not connected, regardless of 100% opening
degree being maintained longer than 30 minutes.
Check OP alarm can be configured. Default setting is Priority 1
11.1.11 Hardware alarm
Alarm is generated without time delay if the controller detects a hardware problem. Malfunction of following
components
is detected:
Temperature measurement
t
0
not received (alarmed with Prio 0 if control can continue at least with R5.x, otherwise with priority of
controller)
General fault
Loss of setpoint (memory problem)
Time/date
First start
Priority for transmission of alarm depends on the controller priority and type of alarm.
Following a defrost the alarm delay time is extended to 60 minutes.
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Priority of this alarm should be set to ”0” in on-off control mode so as to avoid false alarms.
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