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Posted: 2022-08-02 07:16 AM
Hello,
I'm working on ATV320 with an Ethercat Interface board with CHCF set on I-O. When RDY message is displayed I send a controlword with a Forward or Backward command and the inverter starts. StatusWord become UINT#1591. After a while StatusWord changes to UINT#1616, a NST message appear on the display and Inverter stops with statusword UINT#592.
What's going on? Why it doesn't continues to run ?
Thanks to who'll help me!
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Posted: 2022-08-02 07:49 AM
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Posted: 2022-08-02 08:21 AM
Thanks for your Replay @Ahmed_Alzafer !
I already read a lot of documentation and FAQs, included which ones you suggested.
All the cases you reported don't include this case unfortunately.
TCC = 2C -> NO
TCC= 3C -> NO
NST is assigned to DI -> NO
Drive is not receiving the proper command signal -> For sure it gets the reset, forward and backward command, if Communication falls could be showed an error?
A loss of a 4-20mA signal is programmed to freewheel stop -> NO
The drive is in terminal control, and the STOP button on the integral or remote keypad was pressed -> NO and I think there is not an STOP button on ATV320 (there is ESC button and small knob to browse the menu).
Any other ideas? How I can see the root of NST message?
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Posted: 2022-08-24 08:21 AM
Status Word changing from UINT 1591 to UNIT 1616 and then UINT 592 show the Bit 5 of the status word is changed from 1=> 0.
This means the Quick Stop is active in the drive after the drive reached the desired reference.
The drive performs a fast stop and remains locked in the operating state 6-Quick stop active.
Before restarting the motor, it is required to go to the operating state 2-switch on disabled.
During fast stop, the drive is unlocked and power is supplied to the motor.
The configuration parameters cannot be modified.
The condition for transition 12 to state 2 - Switch on disabled depends on the value of the
parameter Quick stop mode (QStd):
• If the Quick stop mode parameter has the value FST2, the drive stops according to the fast
stop ramp and then changes to state 2 - Switch on disabled .
• If the Quick stop mode parameter has the value FST6, the drive stops according to the fast
stop ramp and then remains in state 6 - Quick stop active until:
◦ A Disable voltage command is received or
◦ The STOP key is pressed or
◦ A freewheel stop command via the digital input of the terminal.
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