YASKAWA Varispeed CIMR-G7A - Page 169

5-60
* 1. The factory setting depends on the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given.
* 2. These are values for a 200 V Class Inverter. Value for a 400 V Class Inverter is double.
* 3. If the setting is 0, the axis will accelerate to the specified speed for the specified acceleration time (C1-01 to C1-08).
L2-03
Min.
baseblock
time
Sets the Inverter's minimum
baseblock time in units of one
second, when the Inverter is
restarted after power loss ride-
through.
Sets the time to approximately
0.7 times the motor secondary
circuit time constant.
When an overcurrent or
overvoltage occurs when start-
ing a speed search or DC injec-
tion braking, increase the set
values.
0.1 to
5.0
0.2 s
*1
No A A A A A 487H
6-61
6-63
PwrL
Baseblock t
L2-04
Vo l t a g e
recovery
time
Sets the time required to return
the Inverter output voltage to
normal voltage at the comple-
tion of a speed search, in units
of one second.
Sets the time required to
recover from 0 V to the maxi-
mum voltage.
0.0 to
5.0
0.3 s
*1
No A A A A A 488H
6-61
6-64
PwrL V/F
Ramp t
L2-05
Undervolta
ge detec-
tion level
Sets the main circuit
undervoltage (UV) detection
level (main circuit DC voltage)
in V units.
Usually setting is not necessary.
Insert an AC reactor in the
Inverter input side to lower the
main circuit undervoltage
detection level.
150 to
210
*2
190 V
*2
No A A A A A 489H 6-62
PUV Det
Level
L2-06
KEB decel-
eration time
Sets in seconds the time
required to decelerate from the
speed where the deceleration at
momentary power loss com-
mand (KEB) is input to zero-
speed.
0.0 to
200.0
0.0 s No A A A A A 48AH -
KEB Fre-
quency
L2-07
Momentary
recovery
time
Set in seconds the time to
accelerate to the set speed after
recovery from a momentary
power loss.
0.0 to
25.5
0 s
*3
NoAAAAA48BH-
UV
RETURN
TIME
L2-08
Frequency
reduction
gain at KEB
start
Sets as a percent the about to
reduce the output frequency at
the beginning of deceleration at
momentary power loss (KEB).
Reduction = slip frequency
before KEB operation × L2-08
× 2
0 to
300
100 No A A A A A 48CH -
KEB Decel
Time
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2