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41
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
37
26
SOC not adjusted
during the required
time
SOC not adjusted for
more than 1 month
• Continuous cycling with
charging and discharging
current always above allowed
limit.
• No floating mode encountered
for minimum allowed time.
1. Perform a full charge with
more than 5 minutes in
floating mode.
2. Alarm is automatically
cleared.
3. Continue operation without
fault.
4. If fault persists, contact your
local Saft representative.
40
27
A mosfet is going
over temperature
Mosfet Temperature
> 100 °C during 1 s
• Internal fault detection
function
• Faulty BMST power board
• Ambient temperature too high
1. Continue operation.
2. If fault persists, contact your
local Saft representative.
41
28
A mosfet is over
temperature
Mosfet Temperature
> 110 °C during 1 s
• Redundant safety feature of
microprocessor
• Refer to alarm 40
1. Continue operation to allow
temperature to decrease in
safe mode.
2. If fault persists, contact your
local Saft representative.
44
29
Heater failure
The heater self-test
failed
• Internal fault detection
function
• Faulty BMST busbar board
• Safety thermostat faulty/open
• Ambient temperature too high
1. Continue operation to allow
temperature to decrease.
2. If fault persists, contact your
local Saft representative.
46
30
Battery current
sensor out of range
(lost)
Battery current
< -63 A OR > 63 A
during 2 s
• Current measurement circuit
failure
• BMST busbar board may be
damaged
• Refer to alarm 23 and 24
1. Contact your local Saft
representative if it persists.
47
31
Autotest failure
If Built-In-Tests
(PowerON,
Continuous) failed
(it is considered
as failed after
3 consecutive
unsuccessfull tries)
• See self-test section in
technical manual for details.
1. Disconnect the Evolion from
application.
2. Turn the Evolion OFF and then
ON again.
3. Continue operation without
fault.
4. If fault persists, contact your
local Saft representative.
53
32
Low SOH
SOHmin < 20 %
during 3 s
• Life time of the Evolion is
within 20 % of the End of Life
(EoL).
1. Module to be checked for
replacement
2. Contact your local Saft
representative.
54
33
Inconsistent
temperatures
Maximum module
temperature gap >
10 °C during 2 s
• Internal fault detection
function
• Cell operation issue
• Faulty BMST busbar board
1. Continue operation until
temperature decreases below
limit.
2. If fault persists, contact your
local Saft representative.
55
34
Low µc supply
voltage (3.3 V)
If 3.3 V supply is
enable and if 3.3 V is
not detected for 0.1 s
• Internal fault check function
• Possible faulty BMST
electronics
1. Contact your local Saft
representative.
56
35
Low µc supply
voltage (5 V)
If 5 V supply is enable
and if 5 V is not
detected for 0.1 s
• Internal fault check function
• Possible faulty BMST
electronics
1. Contact your local Saft
representative.
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