Omron VARISPEED G7 -, Instruction Manual, Page: 163 / 417

5
-58
Power Loss Ridethrough: L2
User constants for power loss ridethroughs are shown in the following table.
L1-04
Motor over-
heating
operation
selection 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
1: Coast to stop
2: Emergency stop using the
deceleration time in C1-09.
0 to 2 1 No A A A A A 483H 6-52
MOL Filter
Time
L1-05
Motor tem-
perature
input filter
time con-
stant
Set H3-09 to E and set the pri-
mary delay time constant for
motor temperature (thermistor)
inputs in seconds.
0.00 to
10.00
0.20 s No A A A A A 484H 6-52
MOL Filter
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
L2-01
Momentary
power loss
detection 0: Disabled (main circuit
undervoltage (UV)
detection)
1: Enabled (Restarted when
the power returns within the
time for L2-02. When L2-
02 is exceeded, main circuit
undervoltage detection.)
2: Enabled while CPU is
operating. (Restarts when
power returns during
control operations. Does not
detect main circuit
undervoltage.)
0 to 2 0 No A A A A A 485H 6-55
PwrL
Selection
L2-02
Momentary
power loss
ridethru
time
Ridethrough time, when
Momentary Power Loss Selec-
tion (L2-01) is set to 1, in units
of seconds.
0 to
25.5
0.1 s
*
No A A A A A 486H 6-55
PwrL Ride-
thru t
L2-03
Min. base-
block 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 over-
voltage occurs when starting a
speed search or DC injection
braking, increase the set values.
0.1 to
5.0
0.2 s
*1
No A A A A A 487H
6-55
6-57
PwrL Base-
block t
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