Firmware V3.15
21.04.2021
388/401
11 Alarms and Messages of UA 400
The following table lists all fault reports that may be generated and their possible cause. Each fault is assigned
a priority that can be set in the Alarm Priorities screen.
No.
Message
Cause
Correction
Hardware faults
4
EEPROM Fault
Component for saving configuration defective or
configuration data in EEPROM implausible.
Save parameters in LDSWin software,
perform first start if necessary and load
parameters from LDSWin. Contact Service
Organization if fault recurs
6
Flash Fault
Flash memory module defective.
Please contact Service Organization -Replace
device
8
RTC Fault
Real-time clock defective.
Please contact Service Organization -Replace
device
10
Battery Voltage
Real-time clock and RAM backup battery dead
Replace battery (see chapter
)
50
First Start
Controller performed first start (basic settings
loaded).
-
51
Power Failure
Controller performed restart after power outage.
-
120
Low Temp. Zone 1
Temperature below lower limit on monitored
control sensors of Zone 1.
Check parameter setting, sensors, system
121
Low Temp. Zone 2
Temperature below lower limit on monitored
control sensors of Zone 2.
Check parameter setting, sensors, system
122
High Temp. Zone 1
Temperature above upper limit on monitored
control sensors of Zone 1.
Check parameter setting, sensors, system
123
High Temp. Zone 2
Temperature above upper limit on monitored
control sensors of Zone 2.
Check parameter setting, sensors, system
124
Door open
Door open Z1/Z2
Cold-room controllers only: Cold-room door i.e.
Cold-room Z1 or Z2 open beyond alarm interval 1
Close door, check door switch or connecting
cable
125
No Defrost
Defrosting not performed within alarm interval.- A
defrost sequence via CAN bus was not correctly
configured- A master/slave defrost via CAN bus
was not correctly configured
Check parameterization: Check the internal/
external defrost timer, defrost times, alarm
delay time, configuration of the master/slave
defrost via CAN bus (see chapter
Slave-Modus - Abtau-Synchronisation über
CAN-Bus
), check the configuration of the
defrost sequence via CAN bus (see chapter
Folgeabtauung (FA) über CAN-Bus
126
Timer-Term. Defrost
Defrosting terminated by safe defrost time. Heater
defective, contactor defective, evaporator iced.
Check parameter settings: Defrost termination
temperature too low, check evaporator for
icing, check location of defrost sensor, set
defrost termination temperature to "--"
Defrosting is always terminated by safe
defrost time on controllers working with
off-cycle defrosting. Alarm may be
displayed at intervals on these
controllers
without an actual fault occurring.
Содержание UA 400
Страница 26: ...Firmware V3 15 21 04 2021 26 401 Solenoid valve Relay for Solenoid Valve 1...
Страница 133: ...Firmware V3 15 21 04 2021 133 401 Upper case and lower case can be toggled by tapping the MODE button...
Страница 172: ...Firmware V3 15 21 04 2021 172 401 Service Mode 6 7 2 SERVICE MOD...
Страница 244: ...Firmware V3 15 21 04 2021 244 401...
Страница 324: ...Firmware V3 15 21 04 2021 324 401 COOLING 1 Pos XXXXX Hystersis R4 1 xxx K Supply air temperature hysteresis setpoint...
Страница 357: ...Firmware V3 15 21 04 2021 357 401 COOLING 1 Pos XXXXX Hystersis R4 1 xxx K Supply air temperature hysteresis setpoint...
Страница 361: ...Firmware V3 15 21 04 2021 361 401 FANS 2 Pos XXXXX Fan Delay Fan delay...
Страница 372: ...Firmware V3 15 21 04 2021 372 401...
Страница 399: ...Firmware V3 15 21 04 2021 399 401 12 2 Mechanical Data DIN rail mounting A Connector set with cable All dimensions in mm...