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Video: Why would the ATV21 and ATV212 drives be showing OFF on the display?

Published date: 01 October 2019

ATV21 and ATV212 drives are showing OFF on the display.

Product Line:
Altivar ATV21 and ATV212


Run permissive is not active


"OFF" on the integral display or "OFF: Drive stop" on the LCD keypad indicates that the VFD does not have an active run permissive.
The ATV21/212 factory default has F110=1, always active run permissive.  If F110 and F108 are assigned to functions that do not include run permissive, then the run permissive needs to come from a logic input ( F, R, RES, VIA ).

For troubleshooting, look at assignments for:
F111 input F
F112 input R
F113 input RES
F118 input VIA when F109=1 or 2
The one that includes run permissive ( assignments 1, 54, 56, 57, 66-71 ) needs the corresponding input status to be evaluated.

In an S-Flex arrangement, the run permissive is assigned to input R.  Review the appropriate wiring diagram to trace out the circuit.
Try running in Auto, Hand, bypass, and Local mode and determine if any mode works properly. If the drive doesn't run in any mode, check to see if the overloads are tripped. 
Check for any loose wiring connections.

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