Yaskawa Matrix Converter - Manual (Page 144)

5
-44
„ L2: Power Loss Ridethrough
* 1. The default depends on the MxC capacity. The value for a 200 V class MxC of 5.5 kW is given.
* 2. These are values for a 200 V class MxC. Double the value for a 400 V class MxC.
* 3. Applicable for the Varispeed AC with software versions PRG:1050 or later.
Parameter
Number
Name
Description
Setting
Range
Default
Change
during
Run
Control
Methods MEMO-
BUS
Register
Page
Display V/f
Open
Loop
Vector
Flux
Vector
L2-01
Momentary
Power Loss
Detection Selec-
tion Enables and disables the momentary
power loss function.
0: Disabled. - MxC trips on (FDV) fault
when power is lost.
1: Power Loss Ridethrough Time - MxC
will restart if power returns within the
time set in L2-02.
2: CPU Power Active - MxC will restart
if power returns prior to control
power supply shut down.
0 to 2 0 No A A A 485H 6-56
PwrL Selection
L2-02
Momentary
Power Loss Ride-
through Time
Sets the power loss ridethrough time.
This value is dependent on the capacity of
the MxC. Enabled only when L2-01 = 1.
0.0 to
2.5
0.5 s No A A A 486H 6-56
PwrL Ridethru t
L2-03
Momentary
Power Loss Mini-
mum Base Block
Time Sets the minimum time to wait to allow
the residual motor voltage to decay
before the MxC output turns back on dur-
ing power loss ridethrough. After a power
loss, if L2-03 is greater than L2-02, oper-
ation resumes after the time set in L2-03.
0.1 to
5.0
0.7 s
*1
No A A A 487H
6-56
6-60
PwrL Baseblock t
L2-04
Momentary
Power Loss Volt-
age Recovery
Ramp Time
Sets the time it takes the output voltage to
return to the preset V/f pattern after speed
search (Current Detection Mode) is com-
plete.
0.0 to
5.0
1.5 s No A A A 488H
6-56
6-60
PwrL V/F Ramp t
L2-05
Undervoltage
Detection Level Sets the PS undervoltage trip level of the
MxC. If this is set lower than the default,
additional AC input reactance or PS volt-
age may be necessary. Consult the factory
before changing this parameter setting.
150 to
210
*2
190
VDC
*2
No A A A 489H 6-56
PUV Det Level
L2-13
Power Frequency
Fault Detection
gain Set the gain to detect a power frequency
fault (FDV).
If an FDV is detected when no momen-
tary power loss occurred, decrease the set
value in units of 0.1.
0.1 to
2.0
1.0 No A A A 4CDH 6-56
FDV Gain
L2-21
Undervoltage-
Detection Level
Set the undervoltage-detection level for
the input power voltage in volts. 100 to
200
*2
150
VAC
*2
No A A A 4D5H 6-56
Power UV Level
L2-27 *3
Detection Width
of Input Power
Frequency Error
Sets the frequency width in hertz that
detects the input power frequency error
(FDV). The customer needs not to set or
modify.
3.0 to
20.0
6.0 Hz No A A A 4F7H 6-57
FDV Level