What can cause the ATV61/71 drive not to start and run when LI1 is enabled?

Issue:
ATV61 drive is not starting and running when LI1 is enabled.

Resolution:

First, verify that the top line of the drive display shows RDY, TERM, and REM as expected for the application.

Then check the following configuration and hardware items:

1. Verify the 2-Wire Control Configuration

Go to[1.5 INPUTS / OUTPUTS CFG] and confirm:

[2/3 wire control] = 2 wire (2C)
[2 wire type] = Level (LEL)

With Level (LEL) selected, a logic input state of 1 is recognized as a run command and 0 as a stop command.

2. Verify the Speed Reference

Go to[1.6 COMMAND] and check that[Ref.1 channel] (Fr1) is assigned to the correct speed reference for the application, such as AI1, AI2, or the HMI.

The ATV61 supports reference sources including terminals and the graphic display terminal, depending on the control configuration.

3. Verify the Command Channel

In[1.6 COMMAND], confirm:

[Profile] = Separate (SEP) ( Can also be Not Separate or IO profile, depending on your control)
[Cmd channel 1] = Terminal mode

The ATV61 programming documentation identifies Separate (SEP) as one of the available configurations for command and reference channels.

4. Check the LI1 Input Status

Go to:

[1.2 MONITORING] → [I/O MAP] → [LOGIC INPUT MAP]

Activate the run command and verify that LI1 changes to the active state.

5. Verify the Speed Reference Is Not Zero

Go to:

[1.2 MONITORING] → [I/O MAP] → [ANALOG INPUTS IMAGE]

Verify that the drive is receiving the expected speed reference and that the reference is not 0.

6. Check the Control Hardware

If the configuration is correct but the drive still does not start:

Check and reseat the logic-input terminal connection on the control terminal board.
Verify the position of the Sink/Source switch (SW1) on the control terminal board.
Cycle the switch as appropriate for the control wiring.
Reseat the terminal control board.

If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:

Frequently Asked Questions - Schneider Electric (se.com)

If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us atdrive.products.support@se.comto create a case with our Technical Support Team.

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