LSIS 6731001500, User Manual

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Learning Protection Features
Code Description
Time). For example, set the speed command to ‘2 (V1)’
at DRV-07, and set IN-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 Cmd 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