Product Overview

© Danfoss | DCS | 2019.04
Right , Left : Navigate to alarm list, status,
controller info
UP and Down together: set actual step
position to 0 step
Up : Adjust requested step position upward
Escape: Leave service mode
Enter short press: start edit of requested
position/accept change
Enter press for 2 sec: change valve selection
Data sheet | Superheat controller type EKE 1A, EKE 1B, EKE 1C
DKRCC.PD.RS0.A4.02 | 60
24.0 Service Mode Service mode is designed to provide a very simple way of operating the valve for diagnoistic and
service purpose. There is neither application nor protection in this mode. The user can open and close
the valve using simple button presses on MMIGRS2 .
Note:
Service mode is only
available via MMIGRS2
display. This function is not
possible in KoolProg
Note:
To exit service state:
Press Esc and conrm yes
on the pop up.
Service screen
Controller name
Actual step position
Valve Type
Speed
Current (mA Peak)
Total no of steps
Navigation help
Requested step
position
This mode only have a home screen and do not have any menu structure. All function is carried out
using the “Escape”, “Up”, “Down” and “Enter buttons on MMIGRS2.
Enter Service State
To enter Service State from the normal running application the user must rst set the parameter
[B105 – Enter Service State] to ‘1’ from the menu system. After conrming this via a popup menu the
controller reboots into the Service State.
Valve Selection
In Service State the user must select a valve if this has not already been done.,.The “No Valve selected”
alarm will be actived in the Service State if valve has not been dened.
The “Enter” button brings out the parameter [I067 - Valve setup]. The user can now scroll through the
available valves via the “Up and “Down buttons to select the desired valve through the “Enter button.
If “User dened valve is selected the parameters related to the valve conguration will be allowed to
set the valve parameters.
Valve Operation
From the status screen it is possible to drive the valve towards open by pressing the 'UP' button and
towards close by pressing the 'Down' button ion MMIGRS2 display
The valve will operate as long as the button is pressed and stop when the button is released.