TREND NX Variable Speed Drives - Manual (Page 113)

96 • vacon CONTROL KEYPAD
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7
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 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 .
Figure 7-23. 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 Menu button right . The present value shown starts to blink. Use the
Browser buttons to change the amount of retries. Accept the change with the Enter button or return to the
previous level with the Menu button left .
See Figure 7-23 for the procedure of changing the value.
7.3.6.8 System info
In the System info submenu (S6.8) you can find frequency converter-related hardware and software
information as well as operation-related information.
Total counters (S6.8.1)
In the Total counters page (S6.8.1) you can find information related to the frequency converter operation
times, i.e. the total numbers of MWh, operation days and operation hours passed so far. Unlike the
counters in the Trip counters , these counters cannot be reset.
Note! The Power On time counter (days and hours) runs always, when the power is on.
Page Counter Example
C6.8.1.1. MWh counter
C6.8.1.2. Power On day counter Value on display is 1.013. The drive has operated
for 1 year and 13 days.
C6.8.1.3. Power On hour counter Value on display is 7:05:16. The drive has
operated for 7 hours 5 minutes and 16 seconds.
Table 7-7. Counter pages
READY
I/Oterm
200ms
READY
I/Oterm
enter
200ms
HMI ACK timeout HMI ACK timeout