Specifications

RK0YG302 © Danfoss 04/2007 99
Data
*) AC 15 load in accordance with EN 60947-5-1
EKC 414A1
Supply voltage 230 V +10/-15%, 50/60 Hz, 5 VA
Sensors
Pt 1000 ohm for refrigerant temperatures
Pt 1000 ohm or PTC (R25 = 1000 ohm) for air tempera-
tures
Controller sen-
sor system
Measuring range -60 to +50°C
Accuracy
±0.5°C
for sensor temperature =
-35 to +50°C
Display/ opera-
tion
The controller has no display or operating buttons on
front panel.
Operation takes place via a separate, connected display
or via data communication
It is possible to connect two displays with 0.1% reading
accuracy in the measuring range:
EKA 163, LED, three digits
EKA 164, LED, three digits, two operating buttons
1 digital input
If a contact function is connected, ir can be used for
door alarm, defrost start, night operation or start/stop
of the regulation
If other EKC 414 units are connected, coordinated
defrost can be performed via cable connections
1 digital
output
May in conjunction with the digital input be used for
coordinated defrost via cable connections
230 V input
0 V: regulation stopped. The compressor relay, the de-
frost relay, the fan relay and the light relay are cut out.
230 V a.c.: regulation
(The function can be opted out).
AKV connec-
tion
Max. 1. Coil = 230 V d.c.
Relays
Compressor relay
SPST NO, I
max.
= 6 A ohmic/ 3 A
a.c. 15* inductive
Defrost relay
SPST NO, I
max.
= 6 A ohmic/3 A
a.c. 15* inductive
Fan motor relay
SPST NO, I
max.
= 6 A ohmic/3 A
a.c. 15* inductive
Light relay
SPST NO, I
max.
= 6 A ohmic/3 A
a.c. 15* inductive
Alarm relay
SPDT, I
max.
= 6 A ohmic/3 A a.c.
15* inductive
Environments
0 to +55°C, During operations
-40 to +70°C, During transport
20 - 80% Rh, not condensed
No shock inuence/vibrations
Mounting On DIN rail or on wall
Enclosure IP 20
Weight 0.4 kg
Approvals
EU Low Voltage Directive and EMC demands re CE-
marking complied with.
LVD-tested acc. to EN 60730-1 and EN 60730-2-9
EMC-tested acc. to EN 50081-1 and EN 50082-2
Rail heat
Time period for the aggregate ON/OFF time
o43 6 min 60 min 10
Rail heat denition
0 = no rail heat relay
1 = alarm relay changed into rail heat relay
2 = compressor relay changed into rail heat
relay
3 = no function
4 = no function
5 = light relay changed into rail heat relay
o68 0 5 0
Service
The following readouts can be performed via the belonging parameter
Defrost sensor S5 (S
def
) u09 °C
Status on DI-input u10
Defrost time u11 min.
Air temperature S3 (S
in
) u12 °C
Status on night operation (on or o) u13
Status on ON-input u14
Status on DO-output u15
Air temperature S4 (S
out
) u16 °C
Thermostat temperature u17 °C
Thermostat cut-in time u18 min.
Temperature at S2 u20 °C
Superheat u21 K
Superheat reference u22 K
AKV valve’s actual opening degree u23 %
Evaporating pressure u25 bar
Evaporating temperature u26 °C
Weighted S3/S4 temperature shown in the
display
u56 °C
Weighted S3/S4 temperature used by the
alarm function
u57 °C