Why does the S-Flex (ATV212) ramp to 60 Hz instead of following the analog input?

If your S-Flex (ATV212) drive is ramping the motor to 60 Hz instead of tracking the analog input signal, check the following settings:

1. Verify the input mode (FMOd):
   Ensure the correct control source is selected:

   • 1 = VIA (Analog Input A)
   • 2 = VIB (Analog Input B)
   • 3 = HMI (Keypad)
   • 4 = Serial Communication

2. Check for active preset speed commands:
   Review parameters F108, F110, F111, F112, F113, and F118.
   If any preset speed is enabled through digital inputs, it may override the analog input.

3. Confirm PID control setting (F360):

   • Set F360 = 0 if PID control is not being used.
   • If PID is active, the drive will follow the PID loop instead of the analog input.

4. If PID is enabled:
   Verify the feedback signal and setpoint are correctly configured.
   Incorrect PID setup can cause the drive to ignore the analog reference and run at a fixed speed.

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.

If you are not located in North America, please contact your local Customer Care Center for assistance:

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