74 • vacon
control keypad
Tel: +358-201-2121 • Fax: +358-201-212 205
7
7.3.6.7
Hardware settings
NOTE:
The Hardware settings submenu
is protected with a password. Store the password in a safe
place!
In the
Hardware settings
submenu (S6.7) under the System menu, you can further control some
functions of the hardware in your inverter. The functions available in this menu are
Internal brake
resistor connection, Fan control, HMI acknowledge timeout and HMI retry.
Internal brake resistor connection (P6.7.1)
This function tells the inverter, whether the internal brake resistor is connected or not. If you have
ordered the inverter with an internal brake resistor, the default value of this parameter is
Connected
. However, if it is necessary to increase braking capacity by installing an external brake
resistor, or if the internal brake resistor is disconnected for another reason, it is advisable to change
the value of this function to
Not conn.
in order to avoid unnecessary fault trips.
Enter the edit mode by pressing
Menu button right
. You can change the brake resistor information
with the
Browser buttons
. Confirm the change with the
enter
button or return to the previous level
with
Menu button left
.
Note! The brake resistor is available as optional equipment for all classes. It can be installed
internally in classes FR4 to FR6.
Figure
7
-
17. Internal brake resistor connection
Fan control (P6.7.2)
This function allows you to control the cooling fan of the inverter. You can set the fan to run con-
tinuously when the power is switched on or depending on the temperature of the unit. If the latter
function has been selected, the fan is switched on automatically when the heatsink temperature
reaches 60
C. The fan receives a stop command when the heatsink temperature falls to 55
C. After
the command, the fan runs for approximately 1 minute before stopping. The same happens after
switching on the power and after changing the value from
Continuous
to
Temperature
.
Note! The fan runs always when the drive is in RUN state.
S1
è
S8
READY
I/Ot erm
READY
I/Ot erm
READY
I/Ot erm
enter
READY
I/Ot erm
READY
I/Ot erm
P1
è
P4
System Menu
HW settings
InternBrakeRes
Connected
Not conn.
InternBrakeRes
Connected
InternBrakeRes