Product Overview

© Danfoss | DCS | 2019.04
Data sheet | Superheat controller type EKE 1A, EKE 1B, EKE 1C
DKRCC.PD.RS0.A4.02 | 64
Label MODbus
PNU
Bit
No.
Alarm
Description
Actions during active Trigger (how the alarm
is raised)
How to clear the alarm Remark
STEPPER ALARMS / ERRORS
E103 1901 2 No valve
congured
Auto operation blocked I067 valve conguration
set none
I067 valve conguration
set a valve from the list
No valve selected. Please congure the
correct valve in I067 Valve conguration
E100 1901 8 Valve
conguration
error
Auto operation blocked One or more stepper
conguration errors
Correct stepper cong One or more valve conguration errors
is blocking operation of stepper valve.
Check the other active alarms to identify
the valve conguration problem
E114 1903 10 check valve
step mode vs
positioning
Auto operation blocked Stepper mode is full
step and half as nal is
requested
If full step mode
is wanted set nal
positioning to full. If half
step as nal position is
wanted, set step mode to
minimum half step
With I064 Valve step mode set to "full"
and I029 Valve step positioning set Half
step operation is possible, Correct either
I029 or I064
E115 1903 11 Valve speed too
fast
Auto operation blocked Combination of step
mode and speed give too
few micro speed per sec
(below 8)
Adjust valve speed and/
or valve step mode to be
with limits
Number of micro steps/sec is too high
(higher than 12800 micro step/sec),
Reduce I031 Valve speed or use less micro
step per full step (I064 Valve step mode)
E116 1903 12 Valve speed to
slow
Auto operation blocked Combination of step
mode and speed give too
many micro speed per sec
(higher than 12800)
Adjust valve speed and/
or valve step mode to be
with limits
Number of micro steps/sec is low (higher
than 8 micro step/sec), increase I031
Valve speed or increase I032 Valve start
speed or use more micro step per full
step (I064 Valve step mode)
E117 1903 13 Valve emergency
speed too fast
Auto operation blocked Combination of step
mode and speed give too
few micro speed per sec
(below 8)
Adjust valve speed and/
or valve step mode to be
with limits
Number of micro steps/sec is too high
(higher than 12800 micro step/sec),
Reduce I061 Valve emergency speed
E118 1903 14 Valve emergency
speed too slow
Auto operation blocked Combination of step
mode and speed give too
many micro speed per sec
(higher than 12800)
Adjust valve speed and/
or valve step mode to be
with limits
Number of micro steps/sec is low (higher
than 8 micro step/sec), increase I061
Valve emergency speed
E119 1903 15 Valve start speed
too slow
Auto operation blocked Combination of step
mode and speed give too
few micro speed pr sec
(below 8)
Adjust valve speed and/
or valve step mode to be
with limits
Number of micro steps/sec is low (higher
than 8 micro step/sec), increase I031
Valve speed or increase I032 Valve start
speed or use more micro step per full
step (I064 Valve step mode)
E126 1903 5 Valve Short
circuit or driver
too hot
Auto operation blocked,
stepper will try to
recover every 10 secs
Stepper driver report
thermal SHutdown,
Stepper driver has
recoverd from thermcal
overload
Valve driver is unable to drive valve.
Check for SHort the coils or if ambient is
higher than 60 °C
A997 1901 5 Battery critical
low voltage
Battery input below 12V Battery input above
12.2V
Battery voltage is found to be critical
low, valve will not be closed in case
of power fail. Replace battery /check
connections
A996 1901 6 Battery too high
voltage
Battery input above 27V Battery input below 25V Battery voltage is too high. Valve will
not be closed in case of power fail.
Replace battery with one of correct type
(18-24V.).
W001 1901 7 Battery low
voltage
Battery input below 17V Battery input above
17.2V
Battery voltage is found to be low,
replace battery.
E124 1903 3 Open circuit on
valve
Auto operation blocked,
stepper will try to
recover every 10 secs
Stepper detect one or 2
open coils
Current in both coils
match valve prole
Valve have an open circuit on one or
more coils. Check connections to valve.
BUS ALARMS / ERRORS
E122 1901 3 SHared signal
timeout
One or more signals
(S2, S3, S4, P0, PC) are
not SHared through
CAN within “CAN bus
min. update interval” or
modbus with” Modbus
min. update interval
seconds”.
All needed signal
is updated at right
freqvency
A needed control / sensor / reference
signal via CAN bus is missing. Check CAN
bus connection and operation of other
CAN bus controllers.
E128 1901 4 Ext. ref. via
modbus timeout
If bus signal via modbus Bus ext. ref. needs to be
updated within “Modbus
min. update interval
seconds”.
Ext refernce signal
updated within Modbus
min. update interval
A needed control / sensor / reference
signal via Modbus is missing. Check
Modbus connection and operation of
other Modbus controllers.