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9 Specifications
9-5
FVR-C11S-EN
9
Item
Specifications
Remarks
Indication
Tripped
[Cause of trip by code]
z
OC1 (Overcurrent: during acceleration)
z
OC2 (Overcurrent: during deceleration)
z
OC3
(Overcurrent: while running at constant speed)
z
OU1 (Overvoltage: during acceleration)
z
OU2 (Overvoltage: during deceleration)
z
OU3
(Overvoltage: while running at constant speed)
z
LU (Undervoltage)
z
OH1 (Overheating: Heat sink)
z
OH2 (Overheating: External alarm)
z
OL (Overload: Motor)
z
OLU (Overload: Inverter)
z
Er1 (Memory error)
z
Er3 (CPU error)
z
Er8 (RS485 communication error)
z
Lin (Input phase failure)
Running, Tripped
z
Fault history data is stored and indicated for the
past four trips. Data is retained while power is off.
Protection
Overload
z
Internal electronic thermal overload relay protects
inverter overload.
Overvoltage
z
Detect the excessive DC link circuit voltage to stop
inverter.
Overcurrent
z
Detect overcurrent due to overload on inverter out-
put side to protect inverter
Incoming surge
z
Detect incoming surge voltage between AC power
and the earth to protect inverter.
Undervoltage
z
Detect the DC link circuit undervoltage to stop in-
verter
Overheating
z
Detects the cooling fan fault or abnormal tempera-
ture rise of inverter to protect inverter.
Short-circuit
z
Detect overcurrent due to short-circuit on inverter
output side to protect inverter.