ECKELMANN Case Controller UA 4 E Series, Operating Instruction

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Firmware V3.13 21.04.2021 56/466
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2. Configuration of the three case controllers (group members)
Menu 6-2-6:
Parameter AIN1 activ set to “No” (analogue input 1 is not used)
Parameter Refrig.Z 1 (selection of the refrigerant)*
Parameter LP Z1 min. (smallest pressure value for pressure monitoring at 4 mA)*
Parameter LP Z1 max. (largest pressure value for pressure monitoring at 20 mA)*
Parameter AIN1 Send CAN set to “No” (this is therefore a group member)
Parameter AIN1 Rcv. CAN set to “15” (CAN bus address of the remote case controller)
Parameter AIN1 Rcv. AIN1 set to “1”
*For details on stand-alone operation by means of activated local pressure transmitter, see chapter Standalone
operation using activated local pressure transmitter .
Praxis tip: If the participating case controllers are connected to a pack with E*LDS pack control, and even
though a local pressure transmitter is used, the two parameters Verbund Nr. and Verbundsatz (menu 6-1) must
always be set to a plausible value.
5.7.10 Humidity control
Only UA 400 E CC / UA 410 E AC and only UR 141 NE / UR 141 TE
The controller type UR 141 NE / UR 141 TE can be used to dehumidify the room air in an NT/LT room. A basic
principle of the regulation is “temperature before humidity”, i.e. maintaining the room temperature is prioritised.
The following settings need to be made for regulation:
Controller type is UR 141 NE / UR 141 TE
Single-zone operation is parametrised (menu 6-1) so that the semiconductor relay EEV2 (terminals 33/34;
see chapter
Terminal assignment of the 230 V AC relay outputs ) is available for the switching of the heating
circuit regulation Heating circuit control .
The "Heatg. Circuit" parameter must be set to a value other than "–"
The relative humidity is measured using a humidity sensor via the second analogue input (11/14; for details,
see chapter
Terminal assignment of the 4..20 mA analogue inputs ) and parametrised in menu 6-2-6
(parameter " Fkt. AIN2" = "Feuchte"). The humidity sensor used must have a linear characteristic curve. The
following applies: 4 mA corresponds to 0% relative humidity, 20 mA corresponds to 100% relative humidity!
The determined humidity value is used within the case controller for regulation and is also recorded in the
system centre / store computer. There is no alarm signalling with regard to the measured humidity.
The
humidity setpoint (switching threshold) and the associated Humidity Hyst parameter (menu 6-3) are used
for humidity control. If the switching thr hysteresis is exceeded by the humidity actual value, the
heating circuit is switched on. The heating circuit is switched off if the switching threshold is undercut.
Regardless of the status of the heating and the measured actual value of the humidity, the cooling remains
solely bound to the setpoints specified by the user. This means in particular that the cooling is switched on
when the se hysteresis is exceeded and switched off when the setpoint is undercut.
If the participating case controllers are connected to a pack without E*LDS pack control, then further
setting need to be made.
Menu 6-1 :
Parameter Refr. Sys. No. set to “–“,
Parameter Compr. pack set to “--„
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