n
L2-02: Momentary Power Loss Ride-Thru Time
Sets the maximum time allowed to ride through a power loss. If power loss operation exceeds this time, the drive will attempt
to accelerate back to the frequency reference. This parameter is valid when L2-01 = 1.
Note:
The amount of time the drive is capable of recovering after a power loss is determined by the capacity of the drive. Drive capacity determines
the upper limit for L2-02.
No.
Name
Setting Range
Default
L2-02
Momentary Power Loss Ride-Thru Time
0.0 to 2.5 s
0.5 s
n
L2-03: Momentary Power Loss Minimum Baseblock Time
Sets the minimum baseblock time when power is restored following a momentary power loss. This determines the time the
drive waits for the residual voltage in the motor to dissipate. Increase this setting if overcurrent occurs at the beginning of
Speed Search, after a power loss, or during DC Injection Braking.
No.
Name
Setting Range
Default
L2-03
Momentary Power Loss Minimum Baseblock Time
0.1 to 5.0 s
Determined by C6-01
and o2-04
n
L2-04: Momentary Power Loss Voltage Recovery Ramp Time
Sets the time for the drive to restore the output voltage to the level specified by the V/f pattern after Speed Search. The setting
value determines the time for the voltage to go from 0 V to the maximum voltage.
No.
Name
Setting Range
Default
L2-04
Momentary Power Loss Voltage Recovery Ramp Time
0.0 to 5.0 s
Determined by
C6-01 and o2-04
n
L2-07: Momentary Power Loss Voltage Recovery Acceleration Time
Sets the time to reaccelerate from the deceleration frequency to the frequency set in frequency reference (frequency before
before power loss) after momentary power loss.
When set to 0.0 s, the drive will accelerate to speed according to the active acceleration time set by C1-01, C1-03, C1-05, or
C1-07.
No.
Name
Setting Range
Default
L2-07
Momentary Power Loss Voltage Recovery Acceleration Time
0.00 to 6000.0 s
0.00 s
n
L2-13: Input Power Frequency Fault Detection Gain
Sets the gain used to detect a power supply frequency fault (Fdv). If an Fdv fault occurs with no momentary power loss, reduce
the setting value in 0.1 increments.
No.
Name
Setting Range
Default
L2-13
Input Power Frequency Fault Detection Gain
0.1 to 2.0
1.0
n
L2-21: Low Input Voltage Detection Level
Sets the low input voltage detection level.
No.
Name
Setting Range
Default
L2-21
Low Input Voltage Detection Level
100 to 230 V
<1> Values are specific to 200 V class drives. Double the value for 400 V class drives.
n
L2-27: Power Supply Frequency Fault Detection Width
Sets the frequency width used to detect a power supply frequency fault (Fdv) in Hz. There is normally no need to change this
parameter from the default value.
No.
Name
Setting Range
Default
L2-27
Power Supply Frequency Fault Detection Width
3.0 to 20.0 Hz
6.0 Hz
5.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
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5
Parameter Details
Summary of Contents for U1000 iQpump Drive
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