Danfoss EKE 1A User Manual page 8

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
Figure 3: EKE 1A connection overview
Pressure Transmitter
Ratiometric 0.5 – 4.5 V
AKS cable
connection
060G1034
1
3
2
e.g. AKS 32R
Power supply
24 V AC
24 V DC
± 20% ± 20%
–
+
2.5 A
T fu se
(optional)
Table 6: EKE 1A pinout
COM
DI3
AI2
AI3
AI4
COM
DI1
DI2/3
5V+
COM
 NOTE:
• If Dl1(On/O ) switch is not used it must be short circuited
• EKE 2U Backup power module is recommended to use to ensure closure of the electronic valves. in case of power
failures
© Danfoss | Climate Solutions | 2024.08
Master controller Optional
C
CAN RJ CAN RJ
CAN RJ
CAN RJ CAN RJ
Superheat controller
EKE 1A - 080G5300
+
18 V
Relay
Normally open or
Batt
normally closed
backup
(optional)
(optional)
ON/OFF
ETS 6 / ETS 8M
solenoid
Bipolar valves
valve
ETS / KVS
Colibri ®
CCMT / CTR valve
Common
Digital input 3
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)
*Note; IF Dl1(ON/O )
switch is not used it
must be turned o in
Dl1 parameter
MMIMYK
con guration
Gateway
KoolProg PC tool
C1 NC1
Power
C1 NO1
Power
Alarm
Software con gurable DI
S2
Pe
External Reference signal
Main switch (hardware)
Software con gurable DI
BC398828796060en-000103 | 8