LS ELECTRIC LSLV-H100 Series, Руководство пользователя

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Troubleshooting
528
LCD Display Description
Fan ExChange
Displayed when the cooling fans need replacing. Set the digital output
terminals or relay (OUT-31
–35 or OUT-36) to ‘35 (FanExChange)’ to
receive the fan replacement warning output signals.
Low Battery
Displayed when the RTC battery voltage drops to or below 2 V. To
receive a warning output signal, set PRT-90 (Low Battery) to
‘Yes’.
Broken Belt
Displayed when PRT-91 is set to warning and the inverter becomes on
the condition of broken belt.
Load Tune
Displayed when the values of
‘AP2-03 and AP2-04’ are more than the
values of
‘AP2-09 and AP2-10’ and the function of load tuning is not
normal.
PareWrite Fail Displayed when the function of smart copier is not normal.
Rs Tune Err
Displayed when the function of Rs tuning is not normal . For example,
auto tuning is performed without wiring the motor.
Lsig Tune Err
Displayed when the function of Lsigma tuning is not normal . For
example, auto tuning is performed without wiring the motor.
KPD H.O.A Lock
If [DRV-05 KPD H.O.A Lock] sets HAND-OFF-AUTO disabled, it lasts
one second when HAND-OFF-AUTO key is pressed using user keypad
InFan Warning
It occurs when an abnormality is detected in the cooling fan inside the
inverter with inverter capacity of 110 kW to 500 kW.
9.2 Troubleshooting Fault Trips
When a fault trip or warning occurs due to a protection function, refer to the following table
for possible causes and remedies.
Type Cause Remedy
Over Load
The load is greater than the motor’s
rated capacity.
Ensure that the motor and inverter have
appropriate capacity ratings.
The set value for the overload trip
level (PRT-21) is too low. Increase the set value for the overload
trip level.
Under Load
There is a motor-load connection
problem. Replace the motor and inverter with
models with lower capacity.
The set value for underload level
(PRT-
24) is less than the system’s
minimum load.
Reduce the set value for the underload
level.