Danfoss EKE 1A User Manual

Table 52: Common Valve parameters (For Danfoss/Non-Danfoss valves)
Parameter
Function
Description
I069
Valve OD During Stop
For some application, it is required that the valve remains open after the control-
ler is o. This parameter denes that OD in %.

NOTE:
This parameter requires connecting a Battery Backup
I073
Overdrive Enable OD
The Overdrive happens only after Exceeding Override Enable OD.
I074
Overdrive Block time
To limit how frequent overdrive can performed the parameter [I074 - Overdrive
block time] denes the minimum time between 2 overdrive actions. The default
value is 10 minutes
Danfoss
80G8350.10
Actual opening degree
No overdrive
No overdrive
Overdrive
Overdrive
1073
Override
Enabled OD
1074 - Override Block Time
I078
Preset OD
The DI can be used to force the valve to go to this opening degree.
I068
Valve neutral Zone
EKE controller has a complex algorithm implemented to handle oscillation issues
related to output valve OD by dening some neutral zone. In neutral zone, the
valve will not move until it overcomes the denite variation in the valve opening
degree.
The benet of using such techniques will not aect the performance of the sys-
tem but will reduce the problem related with the uctuating signal, step loss and
hysteresis in the valve.

NOTE:
Failsafe Position: During failsafe mode of operation (e.g., SH control sensor error or Thermostat sensor error) the
valve position can be set to full close, xed opening degree or average calculated OD. For detail check section
Failsafe operation and parameter list under section control advance sub section Diagnostic SH and Emergency
cooling.
6.3.5 Adding user Dened Refrigerant
Most of the used common Refrigerants have been dened as a pre selectable prole under “Refrigerant list para
O030”. for unlisted refrigerants, user dened refrigerants can be used.
Table 53: Adding user dened refrigerants
Parameter
Function
Description
O030
Refrigerant
13 = R User. to select user
dened refrigerant
O100
Antoine Constant A1
Antoine Constant A1 for the user
dened refrigerant. Available only if O030 is on R user option.
O101
Antoine Constant A2
Antoine Constant A2 for the user
dened refrigerant. Available only if O030 is on R user option.
O102
Antoine Constant A3
Antoine Constant A3 for the user
dened refrigerant. Available only if O030 is on R user option.
Superheat controller, Type EKE 1A, 1B, 1C, 1D
© Danfoss | Climate Solutions | 2022.06 BC398828796060en-000101 | 60

Danfoss EKE 1A Specifications

General

Brand	Danfoss
Model	EKE 1A
Category	Controller
Language	English