User`s manual

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6
Selecting the Cooling Fan Control
Using parameter L8-10 two modes can be selected:
0:The fan is ON only when the inverter output is ON, i.e. a voltage is output. This is the factory setting.
1:The fan is ON whenever the inverter power supply is switched ON.
If L8-10 is set to 0, the turn OFF delay time for the fan can be set in parameter L8-11. After a stop command
the inverter waits for this time before switching OFF the cooling fan. The factory setting is 60 sec.
 Setting the Ambient Temperature
At high ambient temperatures an output current derating has to be considered. The derating depends on the
ambient temperature and the protective structure of the inverter. The ambient temperature derating curve is
shown in Fig 6.64. To ensure a safe inverter protection at high ambient temperatures, always set parameter
L8-15 to the actual ambient temperature.
Fig 6.64 Ambient Temperature Derating Curve
Related Parameters
Parameter
No.
Name
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f with
PG
Open
Loop
Vector
Closed
Loop
Vector
L8-12Ambient temperature 45 °CNo AAAA
IMPORTANT
Since the inverter has no IP00/IP20 detection, at IP20 units the ambient temperature value in L8-12 has
to be set 5° higher than the actual ambient temperature.
0
20
40
60
80
100
0 102030405060
Temperature (°C)
Output Current in % of the
Rated Current
IP00
IP20