Danfoss EKC 202 Manual page 11

Fan
Fan stopped at cut-out compressor
Here you can select whether the fan is to be stopped when the compressor is cut out
Delay of fan stop when compressor is cut out
If you have chosen to stop the fan when the compressor is cut out, you can delay the fan stop
when the compressor has stopped.
Here you can set the time delay.
Fan stop temperature
The function stops the fans in an error situation, so that they will not provide power to the appli-
ance. If the defrost sensor registers a higher temperature than the one set here, the fans will be
stopped. There will be re-start at 2 K below the setting.
The function is not active during a defrost or start-up after a defrost.
With setting +50°C the function is interrupted.
Real-time clock
The controller can accommodate one insertion module which may either be a data communica-
tion module or a battery module for the real-time clock.
The battery module is used in conjunction with the real-time clock and will keep the clock going
during lengthy power failures.
Real-time clock
You can set up to six individual times for defrost starts for each 24-hour period. There is also a
date indication used for registration of temperature measurements.
Defrost start, hour setting
Defrost start, minute setting (1 and 11 belong together, etc.)
When all t01 to t16 equal 0 the clock will not start defrosts.
Clock: Hour setting
Clock: Minute setting
Clock: Date setting
Clock: Month setting
Clock: Year setting
Miscellaneous
Delay of output signal after start-up
After start-up or a power failure the controller's functions can be delayed so that overloading of
the electricity supply network is avoided.
Here you can set the time delay.
Digital input signal - DI
The controller has a digital input which can be used for one of the following functions:
Off: The input is not used
1) Status display of a contact function
2) Door function. When the input is open it signals that the door is open. The refrigeration and
the fans are stopped. When the time setting in "A04" is passed, an alarm will be given and
refrigeration will be resumed.
3) Door alarm. When the input is open it signals that the door is open. When the time setting in
"A04" is passed, there will be alarm.
4) Defrost. The function is started with a pulse pressure. The controller will register when the DI
input is activated. The controller will then start a defrost cycle. If the signal is to be received by
several controllers it is important that ALL connections are mounted the same way (DI to DI
and GND to GND).
5) Main switch. Regulation is carried out when the input is short-circuited, and regulation is
stopped when the input is put in pos. OFF.
6) Night operation. When the input is short-circuited, there will be regulation for night opera-
tion.
7) Reference displacement when DI1 is short-circuited. Displacement with "r40".
8) Separate alarm function. Alarm will be given when the input is short-circuited.
9) Separate alarm function. Alarm will be given when the input is opened. (For 8 and 9 the time
delay is set in A27)
10) Case cleaning. The function is started with a pulse pressure. Cf. also description on page 4.
11) Inject on/off. Off when DI is open.
Address
If the controller is built into a network with data communication, it must have an address, and
the master gateway of the data communication must then know this address.
These settings can only be made when a data communication module has been mounted in the
controller and the installation of the data communication cable has been finished.
This installation is mentioned in a separate document "RC8AC".
The address is set between 1 and 240, gateway determined
The address is sent to the gateway when the menu is set in pos. ON
Access code 1 (Access to all 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. (99 will always give
you access).
EKC 202 Manual RS8DZ602 © Danfoss 08-2010
Fan control
F01 Fan stop CO
(Yes = Fan stopped)
F02 Fan del. CO
F04 FanStopTemp.
(Times cannot be set via data communica-
tion. Settings are only relevant when there
is no data communication).
t01-t06
t11-t16
t07
t08
t45
t46
t47
Miscellaneous
o01 DelayOfOutp.
o02 DI 1 Config.
Definition takes place with the numerical
value shown to the left.
(0 = off )
DI state
(Measurement)
The DI input's present status is shown here.
ON or OFF.
After installation of a data communication
module the controller can be operated on
an equal footing with the
other controllers in ADAP-KOOL® refrigera-
tion controls.
o03
o04
o05 -
11