YASKAWA E1000 Technical Manual page 229

The drive can attempt to restart itself following the faults listed below.
Fault
GF
LF
oC
oH1
oL1
oL2
<1> When L2-01 is set to 1 through 4 (continue operation during momentary power loss).
Use parameters L5-01 to L5-05 to set up automatic fault restart.
To output a signal during fault restart, set H2-01, H2-02, or H2-03 to 1E.
■
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 has to be reset manually after correcting the
cause.
The number of fault restarts is reset back to zero when:
• The drive operates normally for ten minutes following a fault restart.
• A fault is cleared manually after protective functions are triggered.
• The power supply is cycled.
No.
L5-01
■
L5-02: Auto Restart Fault Output Operation Selection
Determines if a fault output is triggered (H2- = E) when the drive attempts to restart.
No.
L5-02
Setting 0: No fault output
Setting 1: Fault output is set
■
L5-03: Time to Continue Making Fault Restarts (enabled only when L5-05 = 0)
Although the drive will continue to execute fault restarts, this parameter will cause a fault if a fault restart cannot occur
after the time in L5-03 passes.
All major faults will cause the drive to stop. For some faults it is possible to configure the drive to attempt a restart
automatically. After the fault occurs, the drive baseblocks for L2-03 seconds. After the baseblock is removed the drive
checks if a fault condition still exists. If no fault condition exists the drive will attempt to restart the motor. If the restart is
successful, the drive performs a Speed Search (Regardless of the status of b3-01 "Speed Search Selection") from the set
speed command and the Auto Restart Attempts count is increased by one. Even if the restart fails the restart count is
increased by one as long as the drive attempted to rotate the motor. The restart count will not be incremented if the restart
is not attempted due to a continuing fault condition, (i.e. an ov fault). The drive waits L5-03 seconds before attempting
another restart.
No.
L5-03
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Name
Ground Fault
Output Open Phase
Overcurrent
Drive Overheat
Motor Overload
Drive Overload
Name
Number of Auto Restart Attempts
Name
Auto Restart Fault Output Operation Selection
Name
Time to Continue Making Fault Restarts
5.8 L: Protection Functions
Fault
oL3
ov
PF
Uv1 DC Bus Undervoltage
Sto
Setting Range
0 to 10 Times
Setting Range
0 or 1
Setting Range
0.0 to 600.0 s
Name
Overtorque 1
DC Bus Overvoltage
Input Phase Loss
<1>
Pull-Out Detection
Default
0 Time
Default
0
Default
180.0 s
5
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