Vacon NXP Series User Manual page 89

88 • vacon
Note! The brake resistor is available as optional equipment for all classes. It can be installed
internally in classes FR4 to FR6.
READY
I/Oterm
System Menu
S1 S8
READY
I/Oterm
InternBrakeRes
Connected
Figure 9-21. 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
continuously 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.
Enter the edit mode by pushing the
Browser buttons
the
the previous level with the
I/Oterm
Fan control
Continuous
Figure 9-22. Fan control function
HMI acknowledge timeout (P6.7.3)
This function allows the user to change the timeout of the HMI acknowledgement time in cases
where there is an additional delay in the RS-232 transmission due to use of modems for commu-
nication over longer distances, for example.
Note! If the frequency converter has been connected to the PC with a normal cable, the default
values of parametres 6.7.3 and 6.7.4 (200 and 5) must not be changed.
If the frequency converter has been connected to the PC via a modem and there is delay in
transferring messages, the value of par. 6.7.3 must be set according to the delay as follows:
Clearwater Tech - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.clrwtr.com - Email: info@clrwtr.com
HW settings
InternBrakeRes
enter
Not conn.
Menu button right
to change the fan mode. Accept the change with the
Menu button left
READY
I/Oterm
Fan control
Continuous
READY
I/Oterm
P1 P4
READY
I/Oterm
. The present mode shown starts to blink. Use
.
READY
enter
CONTROL KEYPAD
READY
I/Ot erm
InternBrakeRes
Connected
Enter button
or return to
READY
I/O term
Fan control
Temperature