Omron VARISPEED F7 User Manual page 154

Param-
Name
eter
Description
Num-
Display
ber
Motor tem-
perature
input filter Sets H3-09 to E and sets the
time con- delay time constant for the
L1-05
stant motor temperature (ther-
mistor) input in seconds.
Mtr Temp
Filter
Power Loss Ride Through: L2
Param-
Name
eter
Description
Num-
Display
ber
Momentary 0: Disabled (DC bus
power loss undervoltage (UV1) detec-
detection tion)
1: Enabled (Restarted when
the power returns within
the time set in L2-02. When
L2-02 is exceeded, DC bus
L2-01
undervoltage is detected.)
PwrL Selec-
2: Enabled while CPU is
tion
operating. (Restarts when
power returns during
control operations. Does
not detect DC bus
undervoltage.)
Momentary
power loss
Ridethrough time, when
ride through
Momentary Power Loss Selec-
L2-02
time
tion (L2-01) is set to 1, in units
of seconds.
PwrL Ride-
thru t
Sets the Inverter's minimum
Min. base-
baseblock time, when the
block time
Inverter is restarted after power
loss ride through.
Set the time to approximately
0.7 times the motor time con-
L2-03
stant.
PwrL Base-
When an overcurrent or over-
block t
voltage occurs when starting a
speed search or DC injection
braking, increase the set val-
ues.
Voltage
Sets the time required to return
recovery
the Inverter output voltage
time
L2-04 from 0V to normal voltage at
the completion of a speed
PwrL V/F
search.
Ramp t
Undervolt-
Sets the DC bus undervoltage
age detec-
(UV) detection level (DC bus
tion level
L2-05 voltage).
Usually changing this setting is
PUV Det
not necessary.
Level
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0.00 to
0.20 s No A
10.00
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to 2 0 No A
0.1 s
0 to
No A
* 1
25.5
0.1 to 0.2 s
No A
5.0 *1
0.0 to 0.3 s
No A
5.0 *1
150 to
190 V
210
No A
*2
* 2
Control Methods
MEMO-
V/f Open Closed
BUS
with Loop Loop
Register
PG Vector Vector
A A A 484H
Control Methods
MEMO-
V/f Open Closed
BUS
with Loop Loop
Register
PG Vector Vector
A A A 485H
A A A 486H
A A A 487H
A A A 488H
A A A 489H
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