Fault
Name
oC
Overcurrent
oH1
Drive Overheat
oL1
Motor Overload
oL2
Drive Overload
oL3
Overtorque 1
oL4
Overtorque 2
Fault
Name
ov
DC Bus Overvoltage
PF
Input Phase Loss
Uv1
STo
Pull-Out Detection
<1> When L2-01 is set to 0 through 2 (continue operation during momentary power loss).
Use parameters L5-01 to L5-05 to set up automatic fault restart.
Set H2-01, H2-02, or H2-03 to 1E. to output a signal during fault restart.
n
L5-01: Number of Auto Restart Attempts
Sets the number of times that the drive may attempt to restart itself.
Parameter L5-05 determines the method of incrementing the restart counter. When the counter reaches the number set to L5-01,
the operation stops and the fault must be manually cleared and reset.
The restart counter is incremented at each restart attempt, regardless of whether the attempt was successful. When the counter
reaches the number set to L5-01, the operation stops and the fault must be manually cleared and reset.
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 manually after protective functions are triggered.
• The power supply is cycled.
No.
Name
Setting Range
Default
L5-01
Number of Auto Restart Attempts
0 to 10 Times
0 Times
n
L5-02: Auto Restart Fault Output Operation Selection
Determines if a fault output is triggered (H2-
oo
= E) when the drive attempts to restart.
No.
Name
Setting Range
Default
L5-02
Auto Restart Fault Output Operation Selection
0, 1
0
Setting 0: No Fault Output
Auto-Restart - Cancel Early
Fault output disabled (L5-02 = 0)
Run command
Fault condition
Fault display
Fault digital output
Output Frequency
(U1-02)
L5-04
Figure 1.66 Auto Restart Cancel Early
1.8 L: Protection Functions
112
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual