122 • vacon
CONTROL KEYPAD
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
7
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
HMI acknowledge
timeout and HMI retry.
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 communication 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:
Example:
•
Transfer delay between the frequency converter 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 shorter than the AckTimeOut-time cannot be used in NC-Drive
monitoring.
Enter the edit mode by pushing the
. Use the
edgement time. Accept the change with the
or return to the previous level with the
Figure 7-21. HMI acknowledge timeout
Number of retries to receive HMI acknowledgement (P6.7.4)
With this parameter you can set the number of times the drive will try receive acknowledgement if this
does not succeed within the acknowledgement time (P6.7.3) or if the received acknowledgement is faulty.
Enter the edit mode by pushing the
. The present value shown starts to blink. Use the
to change the amount of retries. Accept the change with the
previous level with the
See Figure 7-21 for the procedure of changing the value.
READY
I/O term
200ms
READY
I/O term
enter
200ms
HMI ACK timeout
HMI ACK timeout