1.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
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Setting 0: Run with timer
The fan is switched on when a Run command is active. It is switched off with the delay set in
parameter L8-11 after the Run command has been released. Using this setting extends the
fan life time.
Setting 1: Run always
The fan runs whenever power is supplied to the drive.
■
L8-11: Heatsink Cooling Fan Off Delay Time
Sets the cooling fan switch off delay time if parameter L8-10 is set to 0.
■
L8-12: Ambient Temperature Setting
If the temperature where the drive is mounted is above the specified values, the drive rated
current must be reduced for optimal performance life. By setting the ambient temperature to
parameter L8-12 and adjusting the installation method setting in L8-35, the drive rating is
automatically adapted to safe values.
Refer to the Basic instruction manual
for a temperature
derating curve.
■
L8-15: OL2 Characteristics Selection at Low Speeds
Selects whether the drive's overload capability (OL fault detection level) is reduced at low
speeds in order to prevent premature output transistor failures.
Setting 0: Disabled
The overload protection level is not reduced. Frequently operating the drive with high output
current at low speed can lead to premature drive faults.
Setting 1: Enabled
The overload protection level (OL2 fault detection level) is automatically reduced at speeds
below 6 Hz.
No.
Name
Setting Range
Default
L8-11
Cooling Fan Switch Off Delay
0 to 300 s
60 s
No.
Name
Setting Range
Default
L8-12
Ambient Temperature Setting
-10 to +50
°
C
40
°
C
No.
Name
Setting Range
Default
L8-15
oL2 Characteristics at Low Speed
0 or 1
1
Summary of Contents for OYMC V1000
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