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Param-
eter
Number
Display
Operation
selection
after over-
heat pre-
alarm
L8-03
OH Pre-
Alarm Sel
Input open-
phase pro-
tection
L8-05
selection
Ph Loss In
Sel
Output
open-phase
protection
selection
L8-07
Ph Loss Out
Sel
Ground pro-
tection
selection
L8-09
Ground
Fault Sel
Cooling fan
control
selection
L8-10
Fan On/Off
Sel
Cooling fan
control
delay time
L8-11
Fan Delay
Time
Ambient
temperature Set the ambient temperature.
L8-12
Ambient
Temp
-66
5
Name
Description
LCD
Sets the operation for when
the Inverter overheat pre-
alarm goes ON.
0: Decelerate to stop in
deceleration time C1-02.
1: Coast to stop
2: Fast stop in fast-stop time
C1-09.
3: Continue operation
(Monitor display only.)
A fault will be given in set-
ting 0 to 2 and a minor fault
will be given in setting 3.
0: Disabled
1: Enabled (Detects if input
current open-phase,
power supply voltage
imbalance or main circuit
electrostatic capacitor
deterioration occurs.)
0: Disabled
1: Enabled (Output open-
phase detected at less
than 5% of Inverter rated
current.)
When applied motor capac-
ity is small for Inverter
capacity, output open-phase
may be detected inadvert-
ently or open-phase may not
be detected. In this case, set
to 0.
0:Disabled
1:Enabled
Set the ON/OFF control for
the cooling fan.
0: ON only when Inverter is
ON
1: ON whenever power is
ON
Set the time in seconds to
delay turning OFF the cool-
ing fan after the cooling fan
OFF command is received.
No need to change the set-
tings for normal usage.
Control Methods
Change
during
Setting
Factory
Range
Setting
Opera-
V/f
tion
0 to 3
3
No
0
0 or 1
No
*
(1)
0
0 or 1
No
0 or 1
1
No
0 or 1
0
No
0 to
60 s
No
300
45 to
45 °C
No
60
V/f
Register Page
Open
with
Loop
PG
A
A
A
4AFH
A
A
A
4B1H
A
A
A
4B3H
A
A
A
4B5H
A
A
A
4B6H
A
A
A
4B7H
A
A
A
4B8H
6-61
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Table of Contents
Troubleshooting
