Saft evolion - Page 36

37
n° Fault code is active (major alarm) with open electronic switch (mosfet); Evolion operates in safe mode.
n° Warning alarm is active with closed electronic switch; Evolion operates in normal mode.
Generic
n°
Buffer
n°
Description Fault condition Possible cause and notes Recommended action guide
6 3
A cell is going over
temperature – 1st
level
Module temperature
> 55 °C during 2 s
• Too much frequent
cycling causing module
temperature to stabilize
too high particularly in high
temperature environment
• Too high ambient temperature
1. Correct fault condition.
2. Evolion auto resets after
correction of cause and fault
condition.
3. Continue operation without
fault.
4. If fault persists, contact your
local Saft representative.
7 4
A cell is over
temperature – 2nd
level
Module temperature
> 75 °C during 2 s
• Redundant safety feature in
microprocessor
• Refer to alarm 6
Refer to alarm 6.
8 5
A cell is going under
temperature – 1st
level
Module temperature
< - 10 °C during 2 s
• Internal heater may not be
working (refer to alarm 44)
• Module stored and installed in
cold environment
1. Correct fault condition.
2. Continue operation after
installation to allow heater
to operate (approx.. 8°C per
hour).
3. Evolion auto resets after
correction of fault condition.
4. Continue operation without
fault.
5. If fault persists, contact your
local Saft representative.
9 6
A cell is under
temperature – 2nd
level
Module temperature
< - 30 °C during 2 s
• Redundant safety feature in
microprocessor
• Refer to alarm 8
Refer to alarm 8.
10 7
A cell is going over
charge – 1st level
Cell voltage > 4,05 V
during 2 s
• Too high voltage setting on
charge
• Cell voltage may be
imbalanced or balancing
circuit may not be working
• Refer to alarm 60
• At 4.08 V, IMR_C will be zero
and as a result regulated
charge mode will be active.
• Refer to alarm 23
1. Check charger output voltage
and correct fault condition.
2. Continue float operation for
1 or a few days (depends on
level of imbalance).
3. Voltage must be above 3.5 V
per cell to have balancing
circuits active.
4. Temperature of the module
must be lower than 55° C for
balancing circuits to be active.
5. Evolion auto resets after
correction of cause and fault
condition while in floating.
6. Alarm will be reset
automatically after the cell
voltage difference is within
allowed limit.
7. Continue operation without
fault.
8. If fault persists, contact your
local Saft representative.
11 8
A cell is over charge
– 2nd level
Cell voltage > 4,15 V
during 2 s
• Redundant safety feature in
microprocessor
• Forbidden charge mode active
• Refer to alarm 10
Refer to alarm 10