YASKAWA Varispeed L7 User Manual

User Parameter Tables
4-39
4
Hardware Protection: L8
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Register
Page
V/f
Open
Loop
Vector
Closed
Loop
Vector
Display
L8-02
Overheat pre-
alarm level
Sets the detection temperature
for the Inverter overheat detec-
tion pre-alarm in °C.
The pre-alarm detects when
the cooling fin temperature
reaches the set value.
50 to
130
75 °C* No A A A 4AEH 5-40
OH Pre-
Alarm Lvl
L8-03
Operation
selection after
overheat pre-
alarm
Sets the operation for when the
Inverter overheat pre-alarm
occurs.
0: Decelerate to stop using the
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 setting
0 to 2 and a minor fault will be
given in setting 3.
0 to 3 3 No A A A 4AFH 5-40
OH Pre-
Alarm Sel
L8-05
Input open-
phase protec-
tion selection
0: Disabled
1: Enabled (Detects power
supply open-phase, power
supply voltage imbalance
or DC bus electrostatic
capacitor deterioration.)
0 or 1 0 No A A A 4B1H 5-40
Ph Loss In Sel
L8-07
Output open-
phase protec-
tion selection
0: Disabled
1: Enabled, 1 Phase
Observatioin
2: Enabled, 2 and Phase
Observatioin
An output open-phase is
detected at less than 5% of
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 to 2 2 No A A A 4B3H 5-41
Ph Loss Out
Sel
L8-09
Ground pro-
tection selec-
tion
0:Disabled
1:Enabled
It is not recommended to use
another setting than factory
setting.
0 or 1 1 No A A A 4B5H 5-41
Ground Fault
Sel
L8-10
Cooling fan
control selec-
tion
Set the ON/OFF control for the
cooling fan.
0: ON when Inverter is
running only
1: ON whenever power is ON
0 or 1 0 No A A A 4B6H 5-42
Fan On/Off
Sel
L8-11
Cooling fan
control delay
time
Set the time in seconds to
delay turning OFF the cooling
fan after the inverter STOP
command is given.
0 to 300 60 s No A A A 4B7H 5-42
Fan Delay
Time
L8-12
Ambient tem-
perature
Sets the ambient temperature. 45 to 60 45 °CNo A A A4B8H5-42
Ambient
Temp
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YASKAWA Varispeed L7 Specifications

General

Brand	YASKAWA
Model	Varispeed L7
Category	Inverter
Language	English