ECKELMANN UA 400, Operating Instruction

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Firmware V3.15 21.04.2021 50/401
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Example configuration:
Specify the sequence in which the controllers should defrost (e.g. first the controllers with the addresses 11
and 12, then 22, 25 and 27, then 5 and 28).
The controllers that defrost first belong to group 1:
For one of these controllers (e.g. address 11) under 2 Setpoints – 2 Defrost – 1 Zone 1:
Set the DS-Function to "Master"
For all other controllers in group 1 (e.g. UA with address 12) under 2 Setpoints – 2 Defrost – 1 Zone
1:
Set DS-Function to Slave and
Set DS-Group to 1 and
Set DS-Master to the CAN bus address of the master controller (in example "11").
The controllers which are to be defrosted next receive the group number 2.
For all these controllers (in example controllers 22, 25 and 27):
Set DS-Function to Slave and
Set DS-Group to 2 and
Set DS-Master to the CAN bus address of the master controller (in example "11").
Apply the same procedure to further groups (in the example controller 5 and 28) and enter the respective
group number (here group number 3).
If required a delay time can be set on the master controller (e.g. 11) for the period between group defrosts
under 2 Setpoints – 2 Defrost – 1 Zone 1 - DS-Wait time .
Further measures for the parameterization of the defrost sequence
The initiation of an additional, separate defrost (manual, external, internal, CAN) on a defrost sequence
slave is to be avoided (defrost time set to "--"), however if needed it can nevertheless be carried out.
Safe defrost times, drip and delay times and defrost on demand can be assigned individually for every
controller of the consecutive chain.
The parameter "DS Master" cannot be set to CAN bus addresses that do not exist. If the controller does not
exist or is unable to execute a defrost, then the alarm "Defrost Malfunction" is generated.