Danfoss EKC 202 Manual page 12

Sensor type
Normally a Pt 1000 sensor with great signal accuracy is used. But you can also use a sensor with
another signal accuracy. That may either be a PTC sensor (1000 ohm at 25°C) or an NTC sensor
(5000 Ohm at 25°C).
All the mounted sensors must be of the same type.
Display step
Yes: Gives steps of 0.5°
No: Gives steps of 0.1°
Max. standby time after coordinated defrost
When a controller has completed a defrost it will wait for a signal which tells that the refrigera-
tion may be resumed. If this signal fails to appear for one reason or another, the controller will
itself start the refrigeration when this standby time has elapsed.
Configuration of light function
1) The relay cuts in during day operation
2) The relay to be controlled via data communication
3) The relay to be controlled by the door switch defined in either o02 where the setting is
selected to either 2 or 3. When the door is opened the relay will cut in. When the door is closed
again there will be a time delay of two minutes before the light is switched off.
Activation of light relay
The light relay can be activated here (if 038=2)
Case cleaning
The status of the function can be followed here or the function can be started manually.
0 = Normal operation (no cleaning)
1 = Cleaning with fans operating. All other outputs are Off.
2 = Cleaning with stopped fans. All outputs are Off.
If the function is controlled by a signal at the DI input, the relevant status can be seen here in the
menu.
Access code 2 (Access to adjustments)
There is access to adjustments of values, but not to configuration settings. If the settings in the
controller are to be protected with an access code you can set a numerical value between 0 and
100. If not, you can cancel the function with setting 0. If the function is used, access code 1 (o05)
must also be used.
Copy the controller's present settings
With this function the controller's settings can be transferred to a programming key. The key
can contain up to 25 different sets. Select a number. All settings except for Address (o03) will be
copied. When copying has started the display returns to o65. After two seconds you can move
into the menu again and check whether the copying was satisfactory.
Showing of a negative figure spells problems. See the significance in the Fault Message section.
Copy from the programming key
This function downloads a set of settings earlier saved in the controller. Select the relevant
number.
All settings except for Address (o03) will be copied. When copying has started the display
returns to o66. After two seconds you can move back into the menu again and check whether
the copying was satisfactory. Showing of a negative figure spells problems. See the significance
in the Fault Message section.
Save as factory setting
With this setting you save the controller's actual settings as a new basic setting (the earlier fac-
tory settings are overwritten).
Other application for S5 sensor
Maintain the setting at 0 if the sensor has been defined as defrost sensor in D10. If D10 has been
set at 0 or 2 the S5 input can be used as product sensor or condenser sensor. Here you define
which:
0: Defrost sensor
1: Product sensor
2: Condenser sensor with alarm
Relay 4
Here you define the application for relay 4:
1: Defrost (EKC 202A) or Light (EKC 202C)
2: Alarm
12 Manual RS8DZ602 © Danfoss 08-2010
o06 SensorConfig
Pt = 0
PTC = 1
NTC = 2
o15 Disp. Step = 0.5
o16 Max HoldTime
o38 Light config
o39 Light remote
o46 Case clean
o64 -
o65 -
o66 -
o67 -
o70 S5 Config
o72 DO4 Config
- - - Night Setback
0=Day
1=Night
EKC 202