Igema EWLS, Инструкция по установке и эксплуатации

Страница: 29 / 36

29
Danger
11. Fault analysis and rectification
The device terminal strip is live during operation!!
Before working on the device disconnect it from the mains!!
Over the LCD display of the CU-3 (error code and plain text abbreviation) various errors are displayed
during operation. This information can be assigned to possible causes of error with the following table.
System-Error codes:
Error code Cause Remedial Action
Display CU-3
(“xx”
1*
) please
check probe: “xx”
Problem with probe
“xx”
2*
Check probe xx
(33)
LLW alarm
Below low water level Provide supply of water
(34)
HHW alarm
High water level reached Switch off water supply
(40) PIN 1
power too low
24V supply 1
failed
Check power supply unit 1
(41) PIN 2
power too low
24V supply 2
failed
Check power supply unit 2
(50) MU A
high temperature
Temperature in MU-3
distribution cabinet too high
Optimise heat balance in MU
distribution cabinet
(51) MU B
high temperature
Temperature in MU-3
distribution cabinet too high
Optimise heat balance in MU
distribution cabinet
(60) MU
hardware error
MU hardware error
Restart device;
Replace MU electronic board
(61) MU A
case connection
MU A earth cable faulty
Check measuring cable to
housing mounting flange
(62) MU B
case connection
MU B earth cable faulty
Check measuring cable to
housing mounting flange
(63) MU A
CAN bus no data
MU A transmitting no data
via CAN-Bus
Restart device;
Replace MU electronic board
(64) MU B
CAN bus no data
MU B transmitting no data
via CAN-Bus
Restart device;
Replace MU electronic board
(65) MU
CAN bus no data
CU receiving no data from
CAN-Bus
Check CAN-bus lead
Check CAN-bus voltage supply
Replace MU electronic board
(98) CU
hardware error
CU hardware error
Restart CU-3;
Replace CU-3
(99) PIN 3
power too low
24V supply not available on
CAN-Bus
Check 24V CAN PIN 3
3*
1*:
“xx” = Number of probe “01” to “32”
2*: Probe fault such as cable breakage
System error such as water over steam
3*: Remove cable from PIN 3, measure output at terminal:
24V CAN output of the CU3 shows 24V
→
error in the CAN cable
24V CAN output of the CU3 does not show 24V
→
Replace CU-3