Danfoss EKC 302A User Manual

6 Manual RS8DZ702 © Danfoss 03-2012 EKC 202 / 302
Menu survey
Parameters Controller
Min.-
value
Max.-
value
Factory
setting
Actual
setting
Function Codes
EKC
202A /
302A
EKC
202B
/302B
EKC
202C
Normal operation
Temperature (set point) --- -50°C 50°C 2°C
Thermostat
Dierential r01 0,1 K 20 K 2 K
Max. limitation of set point setting r02 -49°C 50°C 50°C
Min. limitation of set point setting r03 -50°C 49°C -50°C
Adjustment of temperature indication r04 -20 K 20 K 0.0 K
Temperature unit (°C/°F) r05 °C °F °C
Correction of the signal from Sair r09 -10 K 10 K 0 K
Manual service(-1), stop regulation(0), start regulation (1) r12 -1 1 1
Displacement of reference during night operation r13 -10 K 10 K 0 K
Activation of reference displacement r40 r39 OFF on OFF
Value of reference displacement (activation by r39 or DI) r40 -50 K 50 K 0 K
Alarm
Delay for temperature alarm A03 0 min 240 min 30 min
Delay for door alarm A04 0 min 240 min 60 min
Delay for temperature alarm after defrost A12 0 min 240 min 90 min
High alarm limit A13 -50°C 50°C 8°C
Low alarm limit A14 -50°C 50°C -30°C
Alarm delay DI1 A27 0 min 240 min 30 min
High alarm limit for condenser temperature (o70) A37 0°C 99°C 50°C
Compressor
Min. ON-time c01 0 min 30 min 0 min
Min. OFF-time c02 0 min 30 min 0 min
Compressor relay must cutin and out inversely (NC-function) c30 0 / OFF 1 / on 0 / OFF
External relays (Zero crossing control – only EKC 302)
Must be 'ON' when connecting to external relays
c70 OFF On On
Defrost
Defrost method (none/EL/gas) d01 no gas EL
Defrost stop temperature d02 0°C 25°C 6°C
Interval between defrost starts d03 0 hours 48 hours 8 hours
Max. defrost duration d04 0 min 180 min 45 min
Displacement of time on cutin of defrost at start-up d05 0 min 240 min 0 min
Drip o time d06 0 min 60 min 0 min
Delay for fan start after defrost d07 0 min 60 min 0 min
Fan start temperature d08 -15°C 0°C -5°C
Fan cutin during defrost
0: Stopped
1: Running
2: Running during pump down and defrost
d09 0 2 1
Defrost sensor (0=time, 1=S5, 2=Sair) d10 0 2 0
Max. aggregate refrigeration time between two defrosts d18 0 hours 48 hours 0 hours
Defrost on demand - S5 temperature’s permitted variation during frost build-up. On
central plant choose 20 K (=o)
d19 0 K 20 K 20 K
Fans
Fan stop at cutout compressor F01 no yes no
Delay of fan stop F02 0 min 30 min 0 min
Fan stop temperature (S5) F04 -50°C 50°C 50°C
Real time clock
Six start times for defrost.
Setting of hours.
0=OFF
t01-t06 0 hours 23 hours 0 hours
Six start times for defrost.
Setting of minutes.
0=OFF
t11-t16 0 min 59 min 0 min
Clock - Setting of hours t07 0 hours 23 hours 0 hours
Clock - Setting of minute t08 0 min 59 min 0 min
Clock - Setting of date t45 1 31 1
Clock - Setting of month t46 1 12 1
Clock - Setting of year t47 0 99 0
Miscellaneous
Delay of output signals after start-up o01 0 s 600 s 5 s
Input signal on DI1. Function:
0=not used. 1=status on DI1. 2=door function with alarm when open. 3=door alarm
when open. 4=defrost start (pulse-pressure). 5=ext.main switch. 6=night operation
7=change reference (r40 will be activated) 8=alarm function when closed. 9=alarm func-
tion when open. 10=case cleaning (pulse pressure). 11=Inject o when open.
o02 0 11 0
Network address o03 0 240 0
On/O switch (Service Pin message) o04 OFF ON OFF
Access code 1 (all settings) o05 0 100 0
Used sensor type (Pt /PTC/NTC) o06 Pt ntc Pt
Display step = 0.5 (normal 0.1 at Pt sensor) o15 no yes no
Max hold time after coordinated defrost o16 0 min 60 min 20
Conguration of light function (relay 4)
1=ON during day operation. 2=ON / OFF via data communication. 3=ON follows the DI-
function, when DI is selected to door function or to door alarm
o38 1 3 1
Activation of light relay (only if o38=2) o39 OFF ON OFF
EKC 202: SW = 1.3x
EKC 302: SW = 1.0x

Danfoss EKC 302A Specifications

General

Brand	Danfoss
Model	EKC 302A
Category	Controller
Language	English