88 • vacon
CONTROL KEYPAD
Note! The brake resistor is available as optional equipment for all classes. It can be installed
internally in classes FR4 to FR6.
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
. The present mode shown starts to blink. Use
the
to change the fan mode. Accept the change with the
or return to
the previous level with the
Menu button left
.
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:
S1 S8
READY
I/Oterm
READY
I/Oterm
READY
I/Oterm
enter
READY
I/Oterm
READY
I/Ot erm
P1 P4
System Menu
HW settings
InternBrakeRes
Connected
Not conn.
InternBrakeRes
Connected
InternBrakeRes
READY
I/O term
READY
enter
READY
I/O term
Fan control
Continuous
Fan control
Fan control
Continuous
Temperature
Clearwater Tech - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.clrwtr.com - Email: [email protected]
