4.2
Troubleshooting and fault codes
4.2.1
Fault levels
PRIORITY
1 (HIGHEST)
2
3
4 (LOWEST)
4.2.1
Fault list
Code
Fault
1
Over Voltage
2
Under Voltage
3
User
Over Voltage
4
User
Under Voltage
5
Inverter 1
Over Current
6
Inverter 2
Over Current
7
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W11E | Operation manual
Level
Family
Possible Causes
Blocking
All
• Battery resistance too high while
regenerating.
• Battery disconnected while
regenerating.
Blocking
All
• Battery seriously damaged or
exhausted.
• Battery resistance too high.
• Battery disconnected while driving.
• Blown key-switch fuse.
• External load drains power from
battery.
Blocking
TAU
• Battery resistance too high while
System
regenerating.
• Battery disconnected while
regenerating.
• Too low voltage level defined by the
user
Blocking
TAU
• Battery serious damaged or
System
exhausted.
• Battery resistance too high.
• Battery disconnected while driving.
• Blown key-switch fuse.
• External load drains power from
battery.
• Too high voltage level defined by the
user.
Blocking
All
• External or internal short-circuit
between U1, V1 or W1 AC motor's
phases.
• Incorrect motor 1 parameter/s.
• Inverter 1 power module damaged.
Blocking
All
• External or internal short-circuit
between U2, V2 or W2 AC motor's
phases.
• Incorrect motor2 parameter/s.
• Inverter 2 power module damaged.
-
All
-
LEVEL
Blocking
Stopping
Limiting
Warning
Set Condition
Key-switch voltage or
capacitors voltage is
above the maximum
level allowed for the
controller.
Key-switch voltage is
below the minimum
level allowed for the
controller.
Key-switch voltage is
above the maximum
level defined by the
user.
Key-switch voltage is
below the minimum
level defined by the
user.
Inverter 1 phase current
exceeded its current
limit.
Inverter 2 phase current
exceeded its current
limit.
-
ACTIONS
Main contactor opened
Motors disabled
Outputs disabled
Main contactor closed
Motors stopped
Outputs enabled
Main contactor closed
Motors limited
Outputs enabled
Main contactor closed
Motors enabled
Outputs enabled
Clear Condition
Bring key-switch voltage
below over-voltage limit
and then cycle key
switch.
Bring key-switch voltage
above under-voltage
limit and then cycle key
switch.
Bring key-switch voltage
below user over voltage
limit and then cycle key
switch.
Bring key-switch voltage
above user under voltage
limit and then cycle key
switch.
Cycle key switch.
Cycle key switch.
-
October 2019
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