Omron Varispeed E7

User Parameter Tables
5-31
Stall Prevention: L3
Param-
eter
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
MEMO-
BUS
Register
Page
L3-01
Stall prevention
selection during
accel
0: Disabled (Acceleration as set.
With a heavy load, the motor
may stall.)
1: Enabled (Acceleration stopped
when L3-02 level is exceeded.
Acceleration starts again when
the current has fallen below the
stall prevention level).
2: Intelligent acceleration mode
(Using the L3-02 level as a
basis, acceleration is automati-
cally adjusted. Set acceleration
time is disregarded.)
0 to 2 1 No A 48FH 6-17
L3-02
Stall prevention
level during accel
Effective when L3-01 is set to 1 or
2.
Set as a percentage of Inverter
rated current.
Usually changing this setting is not
necessary. Reduce the setting when
the motor stalls.
0 to
200
120% No A 490H 6-17
L3-04
Stall prevention
selection during
decel
0: Disabled (Deceleration as set. If
deceleration time is too short, a
DC bus overvoltage may
result.)
1: Enabled (Deceleration is
stopped when the DC bus volt-
age exceeds the stall prevention
level. Deceleration restarts
when the voltage falls below the
stall prevention level again.)
2: Intelligent deceleration mode
(Deceleration rate is automati-
cally adjusted so that the
Inverter can decelerate in the
shortest possible time. The set
deceleration time is disre-
garded.)
When a braking option (Braking
Unit) is used, always set to 0.
0 to 2 1 No A 492H 6-19
L3-05
Stall prevention
selection during
running
0: Disabled (Runs as set. With a
heavy load, the motor may
stall.)
1: Deceleration using deceleration
time 1 (C1-02.)
2: Deceleration using decelera-
tiontime 2 (C1-04.)
0 to 2 1 No A 493H 6-29
L3-06
Stall prevention
level during run-
ning
Effective when L3-05 is 1 or 2.
Set as a percentage of the Inverter
rated current.
Usually changing this setting is not
necessary.
Reduce the setting when the motor
stalls.
30 to
200
120% No A 494H 6-29