Danfoss EKE 1A User Manual page 12

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
 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
Figure 8: EKE 1D connection overview
CANBus
Supervisor
EKE
network
AKS Cable
connection
060G1034
1
3
2
Pressure transmitter
e.g. AKS 32R
Power supply
24 V AC 24 V DC
± 20%
± 20%
–
+
2.5 A
T fuse
(optional)
ETS 6 / ETS 8M
Bipolar valves
ETS / KVS
Colibri ®
CCMT / CTR valve
Table 10: EKE 1D pinout
COM
AI
AI2
AI3
AI4
COM
DI1
DI2/3
5V+
COM
© Danfoss | Climate Solutions | 2024.08
Master controller
CAN RJ CAN RJ
CAN RJ CAN RJ
used it must be short circuited
Superheat controller
EKE 1D - 080G5360
+
18 V
Relay
Batt Normally open or
backup
normally closed
(optional)
(optional)
ON/OFF Alarm
solenoid
valve
Common
Analog inputs NTC 10K
Analog input NTC 10K
Analog inputs 0 – 5 V / Ratiometric pressure transmitter
analog inputs 0 – 10 V
Common
Digital input 1
Digital input 2 and 3
Power output for Ratiometric pressure transmitter 0 – 5V
Common
MMIGRS2 Display
CAN RJ
080G0294 (optional)
MMIMYK
Gateway
KoolProg
PC tool
C1 NC1
Power
C1 NO1
Power
S3/S4 selectable via software
S2
Pe
External Reference signal
Main switch (hardware)
Software con gurable DI
BC398828796060en-000103 | 12