Danfoss EKE 1C

Figure 5: EKE 1C - Front board connection overview
R120 CANH CANL GND RGND D+ D-
CAN RJ
COM DI2 DI1 COM
COM 5V+ DI2 DI1 COM AI4 AI3 AI2 DI3 COM
15V+ 5V+ COM AI5 AI4 AI3 AI2 AI1 COM
1
2
3
C
CC
R120 CANH CANL GND RGND D+ D-
CAN RJ
COM DI2 DI1 COM
COM 5V+ DI2 DI1 COM AI4 AI3 AI2 DI3 COM
15V+ 5V+ COM AI5 AI4 AI3 AI2 AI1 COM
*
Superheat controller
*
Danfoss 80G315.10
Superheat controller
EKE 1C - 080G5400
NTC S3/S4
(optional)
Master controller
Pressure Transmitter
Ratiometric 0.5 – 4.5 V
AKS cable
connection
060G1034
NTC/PT 1000 (S2)
NTC/PT 1000 (S3/S4)
(Optional)
COM
DI2
DI1 (ON/OFF)
COM
AI4 (V/I)
e.g. AKS 32R
RS485 RTU MODBus
CANBus Local network
CANBus
MMIMYK
Gateway
EKE /
master
controller
MMIGRS display
080G0294 (optional)
supervisor
network
KoolProg
PC tool
CAN RJ
080G0075 (optional)
Note: If Dl1(On/Off ) switch
is not used it must be short
circuited
Table 8: EKE 1C pinout
COM
Common
AI1
Analog inputs temperature NTC 10K / PT1000
S3/S4 selectable via software
AI2
Analog inputs temperature NTC 10K / PT1000
S2
AI3
Analog inputs voltage / current
Pe
AI4
Analog inputs voltage / current
Ext. Ref. or Pc
AI5
Analog inputs NTC temperature
S3/S4 selectable via software
COM
Common
5V+
Power outputs for Ratiometeric pressure transmitter 0 – 5V
15V+
Power output for current signal pressure transmitter
DI1
Digital input 1
Main switch (hardware)
DI2
Digital input 2
Software congurable DI
24V+
Not used in EKE 1C
AO1
Not used in EKE 1C

NOTE:
• EKE 2U Backup power module is recommended to ensure closure of the electronic valves. in case of power failures
• If Dl1(On/O) switch is not used it must be short circuited
• EKE 1A/1B/1D only support Ratiometric 0.5 to 4.5V pressure transmitter
Superheat controller, Type EKE 1A, 1B, 1C, 1D
© Danfoss | Climate Solutions | 2022.06 BC398828796060en-000101 | 10