YASKAWA Varispeed G7 Series Instruction Manual page 192

Con-
stant
Number
Motor over-
heating
operation
selection
L1-04
MOL Filter
Time
Motor
tempera-
ture input
filter time
L1-05
constant
MOL Filter
Time
Power Loss Ridethrough: L2
User constants for power loss ridethroughs are shown in the following table.
Con-
stant
Number
Momentary
power loss
detection
L2-01
PwrL
Selection
Momentary
power loss
ridethru
L2-02
time
PwrL
Ridethru t
-60
5
Name
Description
Display
Set H3-09 to E and select the
operation when the motor tem-
perature (thermistor) input
exceeds the operation detec-
tion level (2.34 V).
0: Decelerate to stop using the
deceleration time in C1-02.
1: Coast to stop
2: Emergency stop using the
deceleration time in C1-09.
Set H3-09 to E and set the pri-
mary delay time constant for
motor temperature (thermistor)
inputs in seconds.
Name
Description
Display
0: Disabled [main circuit
undervoltage (UV1)
detection]
1: Enabled [Restarted when
the power returns within the
time for L2-02. When L2-
02 is exceeded, main circuit
undervoltage (UV1) is
detected.]
2: Enabled while CPU is
operating. [Restarts when
power returns during
control operations. Does not
detect main circuit
undervoltage (UV1).]
Ridethrough time, when
Momentary Power Loss Selec-
tion (L2-01) is set to 1, in units
of seconds.
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to 2 1 No A
0.00 to
0.20 s No A
10.00
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to 2 0 No A
0 to
0.1 s
No A
25.5
*1
MEMO-
Open Open
BUS
V/f Loop Flux Loop
Regis-
with Vec- Vec- Vec-
ter
PG tor tor tor
1 2
A A A A 483H
A A A A 484H
MEMO-
Open Open
BUS
V/f Loop Flux Loop
Regis-
with Vec- Vec- Vec-
ter
PG tor tor tor
1 2
A A A A 485H
A A A A 486H
Page
6-61
6-61
Page
6-64
6-64