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Param-
eter
Num-
ber
Integral
time set-
ting for
torque
L7-06
limit
Torq Limit
Time
Control
method
selection
for torque
limit dur-
ing accel-
eration
and decel-
eration
L7-07
Torque
Limit Sel
Hardware Protection: L8
User parameters for hardware protection functions are shown in the following table.
Param-
eter
Number
Protect
selection for
internal DB
resistor
L8-01
(Type ERF)
DB Resis-
tor Prot
Overheat
pre-alarm
level
L8-02
OH Pre-
Alarm Lvl
-66
5
Name
Description
Display
Set the integral time for the torque
limit. When integral control is set
for the torque limit, reduce this set-
ting to increase the change in fre-
quency for the torque limit.
Select the control method for the
torque limit during acceleration
and deceleration.
0: Proportional control (integral
control during parameter speed)
1: Integral control
Usually, this parameter does not
need to be set.
For applications in which the
torque limit will be reached during
acceleration and deceleration,
torque control can be given priority
by selecting integral control.
When the torque is limited, the
acceleration and deceleration times
may increase or the motor speed
may not agree with the speed refer-
ence value.
Name
Description
Display
0: Disabled (no overheating
protection)
1: Enabled (overheating
protection)
Sets the detection tempera-
ture for the Inverter overheat
detection pre-alarm in °C.
The pre-alarm detects when
the cooling fin temperature
reaches the set value.
Control Methods
Change
Setting
Factory
during
Range
Setting
Opera-
V/f
tion
5 to
200
No
No
10000
ms
0 or 1
0
No
No
Control Methods
Change
Setting
Factory
during
Range
Setting
Opera-
V/f
tion
0 or 1
0
No
A
50 to
95 °C
No
A
130
*1
Open
Regis-
V/f
Flux
Page
Loop
ter
with
Vec-
Vec-
PG
tor
tor
No
A
No 4ACH 6-50
No
A
No 4C9H 6-51
Regis-
V/f
Open
Flux
Page
ter
with
Loop
Vec-
PG
Vector
tor
A
A
A
4ADH 6-79
A
A
A
4AEH 6-80
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Troubleshooting
