YASKAWA Z1000U Series Programming Manual page 119

Setting 0: No Fault Output
Run command
Fault condition
Fault display
Fault digital output
Output Frequency
(U1-02)
Setting 1: Fault Output Is Set
n 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 set to 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
The auto restart count is reset back to 0 if any of the following occur:
• No further faults for 10 minutes after the last retry.
• The drive power is turned off (the drive must be without power long enough to let control power dissipate).
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
Auto-Restart - Cancel Early
Fault output disabled (L5-02 = 0)
Figure 1.70 Auto Restart Cancel Early
Name
Time to Continue Making Fault Restarts
Run
ov
Fault
trying each
L5-03 seconds successful
Attempts L2-03
L5-01
Count
Voltage
remains high
for a long time,
then reset (1)
Figure 1.71 Automatic Restart Timing Diagram
L5-04
Setting Range
oC oC
try, but
successful
failed
L2-03 L2-03
1 2 3
Time
Drive trips on oC, oC condition
resets (2) and tries gone, resets (3)
again but motor still and runs.
shorted, trips again.
1.8 L: Protection Functions
Default
0.1 to 600.0 s 180.0 s
1
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