Product Overview

© Danfoss | DCS | 2019.04
Data sheet | Superheat controller type EKE 1A, EKE 1B, EKE 1C
DKRCC.PD.RS0.A4.02 | 40
15 Manual Mode
Manual homing is done to initialize the stepper motor. This is done to calibrate the valve at Zero OD %.
Manual homing is only possible if manual mode is active. When manual mode becomes active manual
homing is set to o. When the user set the manual homing, a full closing operation will be
performed (same as initial closing). After the operation is performed the manual homing parameter
[B104 - Manual Homing] will be set back to o and the parameter for [O045 Manual OD] will be set to 0%.
When manual mode becomes inactive the actual OD will be the starting point for automatic control.
15.4 Manual Homing
Warning:
Too often use of Manual
Homeing could wear out the
valve. For normal operation
use overdriving feature
Parameter Function Description
O018 Manual mode 1 = On
B104 Manual Homing 0 = O | 1 = On. The value will auto revert back to 0 after setting the parameter
EKE 1A 1B 1C
Applicable
15.2 Manual control of
Relay
Manual alarm control is only possible if manual mode is active. When manual mode becomes active,
the state of alarm output will remain the same and be transferred to the parameter(s) for Manual
relay DO1. When manual mode becomes inactive the actual state of Manual relay DO1 will be the
starting point for the next mode.
Activation of manual alarm will not be reected in the alarm list.
Parameter Function Description
O018 Manual mode 1 = On
B101 Manual mode timeout 0 time in sec .When timed out the parameter [O018 - Manual Mode] will be set to O
B103 Manual relay DO1 0 = O | 1 = ON
15.3 Manual
control Valve
When DI 2 /DI 3 is congured as Preset OD, the valve OD will be positioned as dened by valve OD
parameter [I078 - Preset OD] .
Parameter Function Description
O018 Manual mode 1 = On
B101 Manual mode timeout 0 time in sec .When timed out the parameter [O018 - Manual Mode] will be set to O
O045 Manual OD Set desired OD in Percentage
15.1 Manual OD
from preset
parameter via DI
Digital input
O022 DI2 conguration 2 = Preset OD
O037 DI3 conguration 2 = Preset OD
Manual Preset via DI I078 Preset OD desired Valve OD %
When DI 2 /DI 3 is congured as Preset OD, the valve OD will be positioned as dened by valve OD
parameter [I078 - Preset OD] .
Valve OD
I078 Preset OD
DI Configuration as Preset OD
Auto OD
Auto OD
DI (as Preset OD) =ON
DI (as Preset OD) =OFF
DI (as Preset OD) =OFF
Danfoss 80G353.10