5.8 L: Protection Functions
Fault Reset Time Chart
Parameter L5-01 sets the number of times the drive can attempt to reset itself after on o f the faults in the table above
occurs. The time chart below illustrates how fault reset works.
F a u l t
V
D C I n j e c t i o n /
P o s i t i o n L o c k
O u t p u t S p e e d
U p o r D o w n c o m m a n d I
S a f e D i s a b l e I n p u t s ( H 1 - H C , H 2 - H C ) < 2 > Щ
B r a k e C o n t r o l ( H 2 - D D = 5 0 )
F a u l t ( H 2 - D D = E )
A u t o R e s e t < 1 >
D C I n j e c t i o n /
P o s i t i o n L o c k
F ig u r e 5 .3 6 F a u lt R e s e t T im e C h a rt
<1>
The drive will accept an auto reset signal once the Up and D ow n comm ands have been removed.
<2>
Software baseblock (Ы 1-П П = 8, or 9) can also be used instead o f Safe D isable inputs
Use parameter L5-06 to set up automatic fault reset.
To output a signal during fault reset, set one o f the output terminals to "Reset enabled" (Ы2-ПП = 1E).
■ L5-01: Number of Auto Reset Attempts
Sets the number o f times that the drive may attempt to reset itself.
The drive will continuously attempt to reset. If it resets successfully, the reset counter is increased. This operation is
repeated each time a fault occurs.
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 reset is reset to zero when:
• The drive operates normally for ten minutes following a fault reset.
• A fault is cleared manually after protective functions are triggered.
• The power supply is cycled.
No.
Name
Setting Range
Default
L5-01
Number o f Auto Reset Attempts
0 to 10 Times
0 Time
■ L5-02: Fault Output Operation during Auto Reset
Determines if a fault output is triggered (Ы2-ПП = E) when the drive attempts to reset.
No.
Name
Setting Range
Default
L5-02
Fault Output Operation during Auto Reset
0 or 1
0
Setting 0: No fault output
Setting 1: Fault output is set
■ L5-06: Undervoltage Fault Reset Selection
Determines whether a limit should be placed on the number o f reset attempts after a Uv1 fault.
No.
Name
Setting Range
Default
L5-06
Undervoltage Fault R eset Selection
0 or 1
0
Setting 0: Restrict auto-reset attempts to L5-01 after Uv1
Setting 1: No limit on auto-reset attempts after Uv1
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
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