YASKAWA Z1000 User Manual page 133

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).
• The RESET key is pushed after the last reset attempt.
The setting of parameter L5-02 determines whether the fault output (MA-MB) will be closed during an auto restart attempt.
The setting of L5-02 can be important when using the drive with other equipment.
The following faults will allow the Auto Restart function to initiate:
• oC (Overcurrent)
• LF (Output Phase Loss)
• PF (Input Phase Loss)
• oL1 (Motor Overload)
• oL3 (Overtorque Detection 1)
• oL2 (Drive Overload)
• ov (Overvoltage)
• GF (Ground Fault)
• Uv1 (Undervoltage)
• oH1 (Heatsink Overheat)
In order for auto restart after a Uv1 fault, Momentary Power Loss Ride-thru must be enabled (L2-01= 1: "Power Loss Ridethru
Time"). Setting H2-01, H2-02 or H2-03 to 1E configures a digital output as "Restart Enabled" to signal if an impending auto
restart is possible.
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
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 4.26 Automatic Restart Timing Diagram
4.7 Basic Drive Setup Adjustments
Setting Range
0.00 to 600.0 s
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.
Default
180.0 s
4
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