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8.7.7.6 Backlight Time (P6.6.5)
It is possible to set the time that the backlight stays on until it goes off. Select a value between 1 and 65535 minutes or
Forever
. For
instructions on how to change the value, see
8.7.7.4 Setting the Timeout Time
.
8.7.8 Hardware Settings
8.7.8.1 Finding the Hardware Setting Menu
Use the Hardware settings submenu (
S6.7
,
HW settings
) in the
System
menu to control these functions of the hardware in the AC
drive:
Internal brake resistor connection,
InternBrakeRes
Fan control
HMI acknowledge timeout,
HMI ACK timeout
HMI retry
Sine filter
Pre-charge mode.
Use a password to go the Hardware settings submenu, see
.
Procedure
To find the Hardware settings submenu, scroll down in the
System
menu until the location indication
S6.7
shows on the first
line of the display.
To go to the Hardware settings submenu from the
System
menu, push the Menu button Right.
8.7.8.2 Setting the Internal Brake Resistor Connection
Use this function to tell the AC drive if the internal brake resistor is connected or not.
If the AC drive has an internal brake resistor, the default value of this parameter is
Connected
. We recommend changing this value to
Not conn.
if:
it is necessary to install an external brake resistor to increase the braking capacity
the internal brake resistor is disconnected for some reason.
The brake resistor is available as optional equipment for all sizes. It can be installed internally in enclosure sizes FR4 to FR6.
Procedure
In the Hardware settings submenu, find the Internal brake resistor connection (
P6.7.1
) subpage with the Browser buttons.
To go to the edit mode, push the Menu button Right.
To change the internal brake resistor status, use the Browser buttons.
To accept the change, push the [enter] button.
8.7.8.3 Fan Control
Use this function to control the cooling fan of the AC drive. There are 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 the following:
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.
As the default temperature at power-up is 25 °C (77 °F), the fan does not start immediately.
For instructions, see
8.7.8.4 Changing the Fan Control Settings
AQ275638903263en-000601 / DPD00910
114 | Danfoss A/S © 2022.12
Using the Control Panel
VACON® NXS/NXP Air-cooled
Operating Guide
Содержание VACON NXS Air-cooled
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