ECKELMANN Case Controller UA 4 E Series - Page 453

Firmware V3.13
21.04.2021
453/466
•
•
126 Timer-Term. Defrost The defrost has been ended via the safe
defrost time.
Heater defective, contactor defective,
evaporator iced up.
Check parametrisation: Defrost termination
temperature too low, check evaporator for
icing up, check position of the defrost
sensor, set defrost termination temperature
to"−−".
127 Manual shutdown Digital input manual shutdown has been set –
No. Message text Cause Remedy
Messages
128 Sensor Fault (Fx) A sensor has been removed, a short-circuit
or interference has occurred at the sensor.
The temperature at the sensor is outside the
specified measuring range.
Check connection cable, check shield or replace
affected sensor. F1..F9 = terminal Z11/
Z12..Z91/92F10 = terminal Z01/Z02
Sensor fault A1, A2 Themessage“SensorfaultA1/A2”is
displayediftheparameter“AIN1”and/or
“AIN2”oftheanalogueinputsinmenu6-2-6
aresetto“Active=Yes”butnosensoris
detected. Note: A1/A2 = analogue input
AIN1/AIN2
Check connection cable, check shield, replace
affected sensors or set parameters "AIN1" and/or
"AIN2" in menu 6-2-6 to "AIN1/2 active=no"
131 Check OD A controller state has been reached which
generates implausible values for the opening
degree (see chapter Alarm due to
implausible opening degree)
Check refrigeration point / controller with regard to
electrical connection of the cooling relay
correct mechanical closing and opening of
the liquid solenoid valve
Possibly, check control sensors for wiring
errors.
138 Check t
0
: Zone1 The pack controller t
o
has not been received
via CAN bus; priority is given to the
messages "check Z1 to", "check Z2 to"
Check pack number of the case controller, check
setting of the parameter Korroff. to, check CAN
bus. See also chapter Low temperature monitoring
t0
Check t
0
: Zone2
139 Sensor Fault EEV Z1 Sensor fault on the necessary control
sensors for the EEV regulation.
Replaceaffectedsensors
Sensor Fault EEV Z2
140 eev ctrl block Z1 The regulation blocked state has occurred 3
times in succession and has not been
rectified independently by the controller.
Check control sensors for correct position. When
operating the superheat control with two
temperature sensors without t0 via the CAN bus,
this error message can occur during operation
without an error being present. The alarm can then
be removed from the alarm signalling with a
priority of 0.
eev ctrl block Z2
141 Wrong controller type Unsupported controller type set at the DIP
switch
Change controller type (see chapter Setting the
controller type and other functions)
142 emerg.cut-out SH Z1 The E-valve has been closed because the
emergency superheat has been undercut for
longer than the parametrised delay time.
Check superheat control sensors for correct
position.
emerg.cut-out SH Z2
ATTENTION
In the case of controllers with off-
cycle defrosting, it can occur that
the defrost is ended via the safe
defrost time. Therefore, the
message can be displayed
cyclically for these controllers
without an error having occurred.
