Omron VARISPEED F7 User Manual page 156

Param-
Name
eter
Description
Num-
Display
ber
Selects the stall prevention
Stall preven-
during deceleration.
tion selec-
0: Disabled (Deceleration as
tion during
set. If deceleration time is
decel
too short, a DC-Bus
overvoltage may result.)
1: Enabled (Deceleration is
stopped when the DC-Bus
voltage exceeds the stall
prevention level.
Deceleration restarts when
the voltage falls below the
stall prevention level
again.)
L3-04
2: Intelligent deceleration
mode (Deceleration rate is
StallP Decel
automatically adjusted so
Sel
that in Inverter can
decelerate in the shortest
possible time. The set
deceleration time is
disregarded.)
3: Enabled (with Braking
Resistor Unit)
When a braking option (Brak-
ing Resistor, Braking Resistor
Unit, Braking Unit) is used,
always set to 0 or 3.
Stall preven- Selects the stall prevention
tion selec- during running.
tion during 0: Disabled (Runs as set. With
running a heavy load, the motor
may stall.)
L3-05
1: Deceleration using
deceleration time 1
StallP Run
(C1-02.)
Sel
2: Deceleration using deceler-
ationtime 2 (C1-04.)
Stall preven- Set the stall prevention during
tion level run operation current level as a
during run percentage of the Inverter rated
current.
L3-06 Effective when L3-05 is 1 or 2.
Usually changing this setting is
StallP Run
not necessary.
Level
Reduce the setting when the
motor stalls.
* The given initial value is valid if Heavy Duty is selected (C6-01=0, default setting). If Normal Duty 1 or 2 is selected (C6-01=1 or 2) the initial value will
be 120%.
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 to 3 1 No Q
0 to 2 1 No A
30 to 150%
No A
200 *
Control Methods
MEMO-
V/f Open Closed
BUS
with Loop Loop
Register
PG Vector Vector
Q Q Q 492H
A No No 493H
A No No 494H
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