Product Overview

© Danfoss | DCS | 2019.04
Data sheet | Superheat controller type EKE 1A, EKE 1B, EKE 1C
DKRCC.PD.RS0.A4.02 | 39
Danfoss 80G8271.01
10 V
Analog Input Signal
Voltage signal
Current signal
Analog Input Signal
Valve Opening
Degree %
0 V
100% OD
0% OD
20 mA4 mA
14.0 Driver mode:
Valve Opening
Degree %
14.1 Using Analog signal
Parameter Function Description
RI02 Operation mode 1 = valve Driver, select 1 to operate as valve driver
I091 Driver reference conguration for 1B 0 = Voltage to OD
I033 Driver reference conguration for 1C 0 = Voltage to OD, 3 = Current to OD
I034 Ext ref voltage low If I091 or I033 = 0, dene min reference voltage
I035 Ext ref. voltage high If I091 or I033 = 0, dene max reference voltage
I036 Ext ref. current low If I033 = 3, dene min reference current
I037 Ext ref. current high If I033 = 3, dene max reference current
The signal can be used to drive the valve’s opening degree to a desired position.
This feature is basically used in a service mode to drive the stepper motor valve to the desired level.
This can be done even if the EKE controller is not activated by the MAIN SWITCH .
EKE 1A 1B 1C
Applicable
Voltage
Current
- -
14.2 Using Communication
bus
The opening degree of a stepper valve can be operated manually between 0% and 100% OD via
communication bus.
EKE 1A 1B 1C
Applicable
-
Parameter Function Description
RI02 Operation mode 1 = valve Driver, select 1 to operate as valve driver
IO91 Driver reference conguration for 1B 0 = Voltage to OD, 1 = Modbus to OD, 2 = Modbus to steps, 3 = Current to OD
IO33 Driver reference conguration for 1C 1 = Modbus to OD, 2 = Modbus to steps
O045 Manual OD Set the desired OD in percent
B100 Manual step Set the desired OD in number of steps
X004 Modbus main switch 1 = ON, 0 = OFF
X002 Modbus preset OD 1 = ON, 0 = OFF
Note:
EKE 1A has only Voltage to OD
by default