LS ELECTRIC LSLV-H100 Series, User Manual

Page: 336 / 618

Learning
Protection Features
323
Code Description
06 (V1 Polarity) to ‘0 (Unipolar)’. When the voltage
input drops to less than half of the value set at IN-08
(V1 Volt x 1), the protective function is activated.
1 Below of x1
The protective operation starts when the signal
becomes smaller than the initial value of the analog
input set by the speed command and it continues
for the speed loss decision time set at PRT-13 (Lost
Cmd Time). Codes IN-08 and IN-12 are used to set
the standard values.
If the set value of the IN-08 and IN-
12 is ‘0,’ the LostCmd function does
not operate.
PRT-14 Lost
Preset F
In situations where speed commands are lost, set the operation mode
(PRT-12 Lost C
md Mode) to ‘5 (Lost Preset)’. This operates the protection
function and sets the frequency so that the operation can continue.
Set IN-
06 (V1 Polarity) to ‘Unipolar’ and IN-08 to ‘5 (V)’. Set PRT-15 (AI Lost Level) to ‘1
(Below x1)’ and PRT-12 (Lost Cmd Mode) to ‘2 (Dec)’ and then set PRT-13 (Lost Cmd
Time) to 5 seconds. Then the inverter operates as follows:
Note
If speed command is lost while using communication options or the integrated RS-485
communication, the protection function operates after the command loss decision time set at
PRT-13 (Lost Cmd Time) is elapsed.