3
To change the internal brake resistor status, use
the Browser buttons.
READY
I/O term
InternBrakeRes
Not conn.
4
To accept the change, push the Enter button.
NOTE!
The brake resistor is available as optional equipment for all sizes. It can be
installed internally in frames FR4 to FR6.
7.9.7.2
Fan control (P6.7.2)
Use this function to control the cooling fan of the AC drive. You have 4 options to select from:
•
Continuous (default setting). The fan is always on when the power is on.
•
Temperature. The fan starts automatically when the heat sink temperature goes to 60 °C
(140 °F) or when the AC drive operates.
The fan stops about a minute after one of these:
•
the heat sink temperature falls to 55 °C (131 °F)
•
the AC drive stops
•
the Fan control value is changed from Continuous to Temperature
•
First start. When power is on, the fan is in the stop state. When the AC drive gets the first
start command, the fan starts.
•
Calc temp. The fan function agrees to the calculated IGBT temperature:
•
If the IGBT temperature is more than 40 °C (104 °F), the fan starts.
•
If the IGBT temperature is below 30°C (86 °F), the fan stops.
NOTE!
As the default temperature at power-up is 25 °C (77 °F), the fan does not
start immediately.
CHANGING THE FAN CONTROL SETTING
1
In the Hardware settings submenu, find the Fan
control settings (6.7.2) with the Browser buttons.
READY
I/O term
Fan control
Continuous
CONTROL PANEL
VACON · 109
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