Hi i m using keb f5 and cannot access submenu to adjust speed and torque. I.e.Us, Lf... How do i access it ?

I may miss the point here. If the question is how to clear the error, page 57, item 4.7 Error Messages, of the KEB instruction manual may be of use. https://www.manualslib.com/manual/1293218/Keb-Combivert-F5.html?page=55#manual

Here is information about the error code:

KEB Error "E. OP"
ERROR overpotential (voltage)
1 Voltage in the DC-link cicuit is too high.
Occurs if the DC-link circuit voltage exceeds the permisible value.
Causes:
- poor controller adjustment (overshooting)
- input voltage too high
- interference voltages at the input
- deceleration ramp to short
- braking resistor defective or too small

Given the very technical nature of the KEB, I lean toward referring to the manufacturer's support. There are quite a number of KEB YouTube videos and a number of supporting documentations available on the web. Perhaps the following will be of use if not an entire misdirection: https://www.kebamerica.com/elevator-support/

https://www.kebamerica.com/products/f5-inverter/

Too much current is being required with the motor shaft not rotating. This is most likely a parameter adjustment issue with the motor data, torque limits and protective functions.

Possible motor issue as well.

Fcon = forward constant

The inverter is operating at the set speed in the forward direction.

Forward CONtinues

System is at the commanded speed in the forward direction.

What is the actual problem you are having?

Via Combivis, write a value of -4 to Fr.01. This will set all parameters back to the factory default values.

Then download your backup parameter file.

you can download the keb f5 manual from this site
http://www.keb.de/en/service-downloads/downloads.html

By default the F5-C inverter uses an analog signal for speed command.

Review the manual that was provided with the inverter for connection of signals.

If this inverter does not have default settings, you will need to determine how it is programmed.

LS means Low Speed. The inverter is enabled and is waiting for a command.

Check your speed and direction signals at the inverter to verify if they are active.