Danfoss EKE 1A User Manual

Table 33: Compressor feed Forward
Parameter
Function
Description
N135
Comp. speed feed forward function
0 = O | 1 = On, default O
R100
Compressor Capacity
compressor capacity value in percentage via Modbus
N136
FF low capacity turning point
The point where SH control is starting to slow. Below this speed
superheat control is slower
N137
FF maximum factor for Tn turning
Dene max. reference current
6.3 Other features and modes
6.3.1 Startup and Defrost Modes
A Startup mode allows the valve to open faster on start-up to avoid any unwanted low-pressure situation. EKE 1x
controllers implements 3 dierent modes for startup, and one sequence for startup.
Figure 72: Startup and Defrost Modes
EKE
1A
1B
1C
1D
Applicable
P-control
The controller is programmed for auto proportional control that will quickly Change the opening degree based on
the superheat of the system. The proportional control is active during the Minimum start time set by the user, and
until the Super heat crosses the reference.

WARNING:
If SH didn’t cross the Superheat reference after the minimum stop time(N104), the Proportional control will stop
after the start time(N105), set by the user.
Figure 73: proportional control startup mode
Min startup
time
Start time
SH
SH ref
The Pctrl is active in
the min start time and
until SH cross the
reference
Danfoss 80G361.10
SH crosses the SH
reference after the “min
start time” = > the
proportional control id
disabled after that
The parameters to setup this mode is illustrated in the following table:
Superheat controller, Type EKE 1A, 1B, 1C, 1D
© Danfoss | Climate Solutions | 2022.06 BC398828796060en-000101 | 50

Danfoss EKE 1A Specifications

General

Brand	Danfoss
Model	EKE 1A
Category	Controller
Language	English