Danfoss EKE 1A User Manual

2 Portfolio overview
Table 1: Portfolio overview
Features
EKE 1A
EKE 1B
EKE 1C
EKE 1D
Power supply
Power Supply Type
24 V AC / DC ± 20%
•
•
•
•
Battery Backup input
18-24 V DC
•
•
•
•
Class of insulation
Class II
Data communication
MODBus
RS 485 RTU
•
•
Wired CANbus
• (4 wires)
• (3 wires)
CANbus RJ 12
Danfoss MMI service port
•
•
•
•
Inputs:
Number of temperature
sensors
1
2
3
2
Temperature sensor types
PT1000
•
NTC 10K, type EKS
•
•
•
•
NTC 10K, type ACCPBT
•
•
•
•
NTC 10K, type Sensata
•
•
•
•
Number of Pressure sen-
sor
1
1
2
(1)
1
Pressure Transmitter
types
Ratiometric 0.5 - 4.5 V
•
•
•
•
Voltage signal 0 – 10 V
•
•
•
•
Current signal 0 – 20 mA
•
Share Pressure Signal
Hardware (Up to 5 devi-
ces)
•
•
•
Via wired CANbus (not
possible to share ratio-
metric sensor)
•
•
Via MODbus
•
•
Number of external refer-
ences
1
1
1
1
External reference
0-20mA
•
User dened current
•
0-10V
•
•
•
•
0- 5V
•
•
•
•
User dened voltage( max
10V)
•
•
•
•
Digital input Dry contact
3
2
Outputs
Digital output
1
Relay
Normally Open
3A General purpose, 250V ac, 100k
Normally closed
2A General purpose, 250V ac, 100k
Relay Function
Alarm relay or LLSV (Liquid Line Solenoid Valve)
User interfaces
Koolprog Software tool
•
•
•
•
MMIGRS2 screen
•
•
•
•
Master controller
•
•
•
(1)
The 2nd pressure sensor is connect to AI4
(1)
The 2nd pressure sensor is connect to AI4
* The 2nd pressure sensor is mounted on AI4
© Danfoss | Climate Solutions | 2022.06 BC398828796060en-000101 | 5
Superheat controller, Type EKE 1A, 1B, 1C, 1D

Danfoss EKE 1A Specifications

General

Brand	Danfoss
Model	EKE 1A
Category	Controller
Language	English