Hardware Settings - Honeywell NX series User Manual

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7.3.6.7

Hardware settings

NOTE: The Hardware settings submenu is protected with a password (see chapter Password (S6.5.1)).
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 frequency converter. 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)
With this function you can tell the frequency converter, whether the internal brake resistor is connected or
not. If you have ordered the frequency converter 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 pushing the
brake resistor status. Accept the change with the
button left.
Note! The brake resistor is available as optional equipment for all classes. It can be installed internally in
classes FR4 to FR6.
READY
I/Ot erm
System Menu
S1 S8
READY
I/Oterm
InternBrakeRes
Connected
Figure 7-21. Internal brake resistor connection
Fan control (P6.7.2)
This function allows you to control the frequency converter's cooling fan. 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 heat sink temperature reaches 60°C or
the converter is in RUN state. The fan receives a stop command when the heat sink temperature falls to
55°C and the converter is in STOP state. However, the fan runs for about a minute after receiving the stop
command or switching on the power, as well as after changing the value from Continuous to Temperature.
Note! The fan runs always when the drive is in RUN state.
CONTROL KEYPAD
Menu button right. Use the
Enter button
READY
I/Oterm
HW settings
P1 P4
READY
I/Oterm
InternBrakeRes
enter
Not conn.
Browser buttons to change the internal
or return to the previous level with the
I/Ot erm
InternBrakeRes
Connected
Menu
READY