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User Guide | ERC 112 Refrigeration Controller
Menu/functions
ERC menu code
Description
"tHE
Thermostat settings
"SEt"
Set point
This parameter defines the desired temperature (set point).
Min. -100.0°C
In standard operation the set point is changed by simply pressing the
Max. 200.0°C
"temperature up/down" buttons on ERC 112; for laboratory and
Default 2.0°C
assembly line you may opt for software controlled set point adjustment
(speed improvement)
"SPr"
Current set point adjustment value diF * SPr
The default value is set to 0.5 and the parameter is hidden by default.
Min. 0.0
"Spr" defines the position of the set point in relation to cut-in and cut-out.
Max. 1.0
Default 0.5
"Spr=0,5" sets the set point mid between cut-in and cut-out.
"Spr=0" sets the set point at the cutout. "Spr=1" sets the set point at cut-in.
"diF"
Thermostat differential
This defines the difference between the cut-out and the cut-in.
Min. 0.0 K
The desired temperature is determined by "SPr" and "diF".
Max. 20.0 K
Default 2.0 K
"HSE"
Upper limit of thermostat set point
Define the temperature range limit of the controller.
Min. -100.0°C
Once set, the desired temperatue (set point) can not go above "HSE" or
Max. 200.0°C
Default 50.0°C
below "LSE".
"LSE"
Lower limit of thermostat set point
Define the temperature range limit of the controller.
Min. -100.0°C
Once set, the desired temperatue (set point) can not go below "LSE".
Max. 200°C
Default -35.0°C
"iCi"
Initial cut in
Comp relay action when Tair is between cut-in and cut-out at power-up:
Min. no
"yES": cut in the compressor.
Max. yes
"no": cut out the compressor.
Default no
"SP2"
Seasonal offset temperature (This parameter is only available from Product version PV03 onwards. Please check product label
for Product version of your controller.)
Min. -25 K
Offset value for set point and alarms when the seasonal offset button is activated.
Max. 25 K
It is an additional offset mode to have separate set points during summer and winter season, which can be activated by long
Default 0
press button after configuring in assignments as "tEc".
"dF2"
Seasonal differential
Temperature differential during seasonal offset mode. Only applicable during normal operation.
Min. 0 K
During ECO mode, the controller will be worked to the ECO Differential setting. See ECO management section for more details.
Max. 20 K
Default 2
FAn
Fan settings
"FCt"
Fan control method
"FAo": fan always on
Default FAo
"SEt": fan follow compressor by manual settings. (FoC and FSC needs to be set accordingly)
"Aut": automatical fan control
"Fod"
Fan ON Delay/Fod
Fod defines the fan delay (in seconds) after a compressor cut-in.
Min. 0 s
Max. 240 s
Fan Stop Delay/FSd
Default 0 s
"FSd" defines the fan delay after a compressor cut-out.
"FSd"
If both "Fod" and "FSd" are set to zero then the fan runs whenever the
Min. 0 s
compressor runs.
Max. 240 s
Default 0 s
"FoC"
Fan ON Cycle/FoC
Fan Stop Cycle/FSC
Min. 0 s
When the compressor is OFF, and "FoC" or "FSC" are not zero, the fan
Max. 960 s
runs in cycles according to "FoC" and "FSC".
Default 0 s
"FSC"
Example: "FoC=120" [sec] and "FSC=120" [sec] means that the fan runs
for half the time when the compressor is OFF. When the compressor is
Min. 0 s
Max. 960 s
on, the fan is always ON (according to "FAo" and "Fod").
Default 0 s
10 | BC200686422115en-000802
© Danfoss | DCS (vt) | 2019.07
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