7-46
Timer Tr
Timer Tfr
Timer Tfs
Set the periods to monitor the transmission and reception steps with timers Tr, Tfr, and
Tfs. The following timing chart shows the meaning of each monitor.
Be sure to set the periods according to the application.
The step will be retried if the step is not completed within the monitor periods. An error
will occur if the step is not completed within the monitor time again.
Note
Set a period of approximately 0.5 s each for communications with the 3G3MV.
Send & Recv
Monitored for Tfs
period.
Monitored for Tr period.
Monitored for Tfr
period.
Ts: Send wait time set per step. Nothing is sent during this period.
Tfs: Monitors the completion of the data sent. If the data transmission is not finished
within this period, the data will be re-transmitted.
Tr: Monitors the response to be received. If the response is not returned within this
period, the response will be re-transmitted.
Tfr: Monitors the reception completion of the response. If the response transmission
is not finished within this period, the response will be re-transmitted.
Note
If the Tr period is too long, the time required to detect a communications error
will be longer, during which the Inverter cannot be controlled. Therefore, be sure
to set an appropriate period.
H
Creating a Step
1. Double-click on
Protocol
with the left button of the mouse.
2. Click on
Sequence
with the left button of the mouse and click on a blank space with
the right button of the mouse.
3. Select
New Step
.
The following table will appear. Set the parameters related to the step in the table.
* Step
Repeat
counter
Com-
mand
No. of
retries
Send
wait
time
Send
mes-
sage
Recv
message
Res-
ponse
write
Next
process
Error
process
j
00
Reset/R
(1)
Send &
Recv
3
---
Input
send
Input
response
Yes
Next
Abort
j
01
Reset/R
(1)
Send &
Recv
3
---
Status
Read
response
Yes
End
Abort
j
Communications
Chapter 7
Summary of Contents for SYSDRIVE 3G3MV A2002
Page 1: ...USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter Cat No I527 E2 02...
Page 15: ...Chapter 1 Overview 1 1 Function 1 2 Nomenclature 1 3 New Features 1...
Page 24: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 89: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 286: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 311: ...Chapter 10 List of Parameters 10...
Page 342: ...Chapter 11 Using the Inverter for a Motor 11...
Page 348: ...Appendix A Standard Models...