Danfoss ERC 102 Reference Manual page 29

1 Click: Temperature setpoint
Sub function: Up
Minimum Run Time / Crt
This parameter is a number of minutes from 0 to 30 .
It determines the minimum number of minutes the compressor must run before a
Temperature cut-out can take effect . For example, if the temperature sensor indi-
cated that the cut-out temperature has been reached, but the number of minutes
set in this parameter have not elapsed since the compressor last started, then the
compressor will continue . It will only stop once the duration given by Crt has been
1 Click: Temperature setpoint
1 Click: Temperature setpoint
Sub function: Up
reached – provided the temperature is still low enough .
Sub function: Down
Crt thus overrides the cut-out .
Minimum Stop Time / CSt
This parameter is a number of minutes from 0 to 30 .
It determines the minimum number of minutes the compressor must remain idle
before a Temperature cut-in can take effect . For example, if the temperature sensor
indicates that the cut-in temperature has been reached, but the number of minutes
set in this parameter have not elapsed since the compressor last stopped, then the
compressor will stay off . It will only start once the duration given by CSt has been
1 Click: Temperature setpoint
1 Click: Temperature setpoint
reached – provided the temperature is still high enough .
Sub function: Down
Sub function: Up
CSt thus overrides the cut-in .
Maximum Off Time/ Cot
This is the maximum time in minutes the compressor is allowed to idle – up to 480
1 Click: Temperature setpoint
minutes . Cot is set to zero by default (inactive) . If ERC102 is to be used on a draft
Sub function: Up
beer (ice bank) application, this parameter can be used to control the ice thickness .
1 Click: Temperature setpoint
Error Run Time / Ert
Sub function: Up
Error Stop Time / ESt 1 Click: Temperature setpoint
Sub function: Down
These two parameters only become active in the unlikely event of a broken tem-
perature sensor . They are then used to run the application in safety mode . At the
same time the sensor error will be shown in the display .
Ert and ESt values are based on OEM experience and are by default inactive .
1 Click: Temperature setpoint
Ert and ESt define the duration the compressor will run (Ert) and be idle (ESt) .
Sub function: Down
Example: Ert = 4 [min] and ESt = 16 [min] will provide an average cooling system
activity of 20% .
1 Click: Temperature setpoint
Sub function: Down
ERC 102 Reference manual – 7 PARAMETERS 29