2.8 L: Protection Functions
212 YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
n L5-01: Number of Auto Restart Attempts
Sets the number of times that the drive may attempt to restart itself.
The method of incrementing the restart counter is determined by the setting of parameter L5-05. When the counter
reaches the number set in L5-01, the operation stops and the fault has to be reset manually after correcting the cause.
The restart counter is incremented at each restart attempt, regardless of whether the attempt was successful. When the
counter reaches the number set in L5-01, the operation stops and the fault must be reset manually after correcting the
cause.
The number of fault restarts is reset to zero when:
• The drive operates normally for 10 minutes following a fault restart.
• A fault is cleared after protective functions are triggered.
• The power supply is cycled.
n
L5-02: Auto Restart Fault Output Operation Selection
Parameter L5-02 sets the fault signal operation (H2- = E) when the drive attempts to restart.
Setting 0: No fault output
Setting 1: Fault output is set
n L5-04: Fault Reset Interval Time
Parameter L5-04 sets the length of time to wait between restart attempts when parameter L5-05 is set to 1.
n
L5-05: Fault Reset Operation Selection
Setting 0: Count successful restarts
The drive will continuously attempt to restart. If it restarts successfully, the restart counter is increased. This operation is
repeated each time a fault occurs until the counter reaches the value set in L5-01.
Setting 1: Count restart attempts
The drive will try to restart using the time interval set in parameter L5-04. A record is kept of the number of attempts to
restart the drive, regardless of whether or not those attempts were successful. When the number of attempted restarts
exceeds the value set in L5-01, the drive gives up trying to restart.
No. Name Setting Range Default
L5-01 Number of Auto Restart Attempts 0 to 10 Times 0 Time
No. Name Setting Range Default
L5-02 Auto Restart Fault Output Operation Selection 0 or 1 0
No. Name Setting Range Default
L5-04 Fault Reset Interval Time 0.5 to 600.0 s 10.0 s
No. Name Setting Range Default
L5-05 Fault Reset Operation Selection 0 or 1 0
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