YASKAWA Z1000U Technical Manual page 156

5.8 L: Protection Functions
Fault
Uv1
Control Circuit Undervoltage
<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.
L5-01
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.
L5-02
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.
156
Name
Name
Number of Auto Restart Attempts
Name
Auto Restart Fault Output Operation Selection
Auto-Restart - Cancel Early
Fault output disabled (L5-02 = 0)
Figure 5.45 Auto Restart Cancel Early
Fault
STo
<1>
L5-04
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
Name
Pull-Out Detection
Setting Range
0 to 10 Times
Setting Range
0, 1
Default
0 Times
Default
0