ECKELMANN UA 400, Руководство по эксплуатации

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Firmware V3.15 21.04.2021 390/401
11.1 Alarm signalling and monitoring
11.1.1 Cold-room door open alarm
Controller type UR 141 NK (NT), UR 141 TK (LT)
Alarm is generated if the cold-room door remains open beyond a definable time. If the alarm delay is set to 0
minutes then the cooler and the evaporator fan are not switched off and the alarm is immediately dispatched.
In the event of a permanently open door, an alarm is activated and the controller returns to cooling following the
elapse of the adjustable alarm delay time.
11.1.2 High or low temperature alarm
High or low temperature is alarmed when temperature rises or falls to the alarm setpoint on a supply air or
return air sensors and the set delay has expired.
Standard settings
The high temperature setpoint is entered in °C, whereas the low temperature setpoint is entered as a difference
to the cooling setpoint in K. High and low temperature setpoints can be set separately for each temperature
zone. The time delay applies to all.
With controller types UA 111/UA 111 D and UA 141, the return air sensors are monitored only for the low-
temperature setpoint. With other controller types, no differentiation of sensor type is made as regards alarm.
During a forced cooling the delay time for the low temperature alarm is reset in order to prevent a false alarm
during the forced cooling operation.
Advanced settings
Controller types UA 121, UA 131, and UA 131 DD
For the supply air sensor an optional warning value can be used. In this case a separate alarm message is
generated if the supply air exceeds this warning value.
In general, the case controller employs a common high temperature warning value for the supply and return air
sensors. In special cases it may be desirable to configure a separate warning value for the supply air sensor
(menu 2-4-1.. 2-4-4).
As soon as the parameter "
Temp.alarm ." is set to a value other than "--", the controller employs the separate
warning values for supply and return air.
This alarm is inactive during defrosting. Any delay that may have started is reset at the commencement
of defrosting and restarts from the beginning on completion of defrosting. The parameter "
Temp.alarm "
must be set to the value "--" (factory setting).
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