SLX9000 Adjustable Frequency Drives User Manual
5-18 For more information visit: www.eaton.com
MN04003020E
January 2009
Hardware Settings
In the Hardware settings submenu (S6.7) you can further customize the settings of the drive
with three parameters: Fan control, HMI acknowledgement timeout and HMI retry.
Fan Control (P6.7.2)
Note: Only the higher power modules of MF3 have been equipped with a cooling fan, in
lower power modules of MF3 the cooling fan is available as optional equipment.
If the cooling fan has been installed in MF3 it runs continuously when the power is switched
on.
This function allows you to control the drive’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 heatsink
temperature reaches 60°C. The fan receives a stop command when the heatsink temperature
falls to 55°C. However the fan runs for about a minute after receiving the stop command, as
well as after changing the value from 0 (Continuous) to 1 (Temperature).
Enter the edit mode by pushing the Menu Button Right. The present mode shown starts to
blink. Use the Browser buttons to change the fan mode. Accept the change with the ENTER
button or return to the previous level with the Menu Button Left.
HMI Acknowledge Timeout (P6.7.3)
This function allows the user to change the timeout of the HMI acknowledgement time.
Note: If the drive has been connected to the PC with a normal cable, the default values of
parameters 6.7.3 and 6.7.4 (200 and 5) must not be changed.
If the drive 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:
Example:
● Transfer delay between the drive and the PC = 600 ms
● The value of par. 6.7.3 is set to 1200 mS (2 x 600, sending delay + receiving delay)
● The corresponding setting shall be entered in the (Misc)-part of the file NCDrive.ini:
– Retries = 5
– AckTimeOut = 1200
– TimeOut = 6000
It must also be considered that intervals that are shorter than the AckTimeOut-time cannot be
used in NC-Drive monitoring.
Enter the edit mode by pushing the Menu Button Right. Use the Browser buttons to change
the acknowledgement time. Accept the change with the ENTER button or return to the
previous level with the Menu Button Left. See Figure 5-15 for how to change the HMI
acknowledgement timeout.
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