Omron VARISPEED L7 Manual page 129

Hardware Protection: L8
Name
Param-
eter
Num-
Display
ber
Overheat pre-
alarm level
L8-02
OH Pre-Alarm Lvl
Operation selec-
tion after overheat
pre-alarm
L8-03
OH Pre-Alarm Sel
Output open-phase
5
detection selection
L8-07
Ph Loss Out Sel
Ground fault
detection selection 0: Disabled
L8-09
Ground Fault Sel
Cooling fan
control selection
L8-10
Fan On/Off Sel
Cooling fan con-
trol delay time
L8-11
Fan Delay Time
Ambient
temperature
L8-12
Ambient Temp
Soft CLA selection 0: Disable
L8-18
Soft CLA Sel
Output phase loss
detection time
L8-20
Pha loss det T
*1. The factory setting depends upon the Inverter capacity. The value for a 200 V Class Inverter of 3.7 kW is given.
42
5-
Setting
Description
Range
Sets the detection temperature
for the Inverter overheat detec-
tion pre-alarm in °C.
50 to
The pre-alarm detects when the
cooling fin temperature reaches
the set value.
Sets the operation when an
Inverter overheat pre-alarm
occurs.
0: Decelerate to stop using the
deceleration time C1-02.
1: Coast to stop
0 to 3
2: Fast stop in fast-stop time
C1-09.
3: Continue operation (Monitor
display only.)
A fault will be given in setting
0 to 2 and a minor fault will be
given in setting 3.
0: Disabled
1: Enabled, 1 Phase Observa-
tion
2: Enabled, 2 and 3 Phase
Observation
An output open-phase is
detected at less than 5% of
0 to 2
Inverter rated current.
When the applied motor capac-
ity is small compared to the
Inverter capacity, the detection
may not work properly and
should be disabled.
0 or 1
1: Enabled
Set the ON/OFF control for the
cooling fan.
0 or 1
0: ON when Inverter is
running only
1: ON whenever power is ON
Set the time in seconds to delay
turning OFF the cooling fan
after the inverter STOP com- 0 to 300
mand is given. (Valid only if
L8-10 = 0)
Sets the ambient temperature. 45 to 60
0 or 1
1: Enable
Sets the detection time of out-
0.0 to
put phase loss detection (LF.)
Change
Factory during
Setting Opera-
V/f
tion
*1
No A
90 °C
130
3 No A
2 No A
1 No A
0 No A
60 s No A
45 °C
No A
1 No A
0.2sec No A
2.0
Control Methods
MEMO-
Closed
Open Closed
BUS
Loop
Loop Loop
Register
Vector
Vector Vector
(PM)
A A A 4AEH
A A A 4AFH
A A A- 4B3H
A A A 4B5H
A A A 4B6H
A A A 4B7H
A A A 4B8H
A A - 4BFH
A A A 4C0H
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