LSIS 6731001500, User Manual

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563
Troubleshooting
LCD Display Type Description
the specified value.
Over Current2 Latch
Displayed when the DC circuit in the inverter detects a specified
level of excessive, short circuit current.
External Trip Latch
Displayed when an external fault signal is provided by the multi-
function terminal. Set one of the multi-function input terminals at
IN-65-71 to ‘4 (External Trip)’ to enable external trip.
BX Level
Displayed when the inverter output is blocked by a signal provided
from the multi-function terminal. Set one of the multi-function
input terminals at IN-65-71 to ‘5 (BX)’ to enable input block function.
H/W-Diag Fatal
Displayed when an error is detected in the memory (EEPRom),
analog-digital converter output (ADC Off Set) or CPU watchdog
(Watch Dog-1, Watch Dog-2).
EEP Err: An error in reading/writing parameters due to keypad or
memory (EEPRom) fault.
ADC Off Set: An error in the current sensing circuit
(U/V/W terminal, current sensor, etc.).
NTC Open Latch
Displayed when an error is detected in the temperature sensor of
the Insulated Gate Bipolar Transistor (IGBT).
Fan Trip Latch
Displayed when an error is detected in the cooling fan. Set PRT-79
to ‘0’ to activate fan trip (for models below 22 kW capacity).
InFan Trip Latch It occurs when an abnormality is detected in the cooling fan inside
the inverter with inverter capacity of 110 kW to 500 kW.
Selecting PRT - 79 code to 0 will work.
Thermal Trip Latch
Triggered when the input temperature is higher than the
temperature set by the user.
Lost KeyPad Latch
Triggered when a communication error occurs between the
keypad and the inverter, when the keypad is the command source,
and PRT-11 (Lost KPD Mode) is set to any other value than ‘0’.
Fuse Open Latch
If an input stage fuse breaks with an inverter of 315 kW or more, a
fault will occur.