REVCON RHF-Active - 8 Error Description and Repair; What this Chapter Contains; Typical Errors and Repairs

8. Error description and repair
User manual RHF-Active 38
8. Error description and repair
8.1 What this chapter contains
This chapter describes known issues and their solving.
8.2 Typical errors and repairs
Error
cause
repair
RHF-Active wrong
compensation (THDI
rises)
Current transformer
Check wiring and polarity
System settings Check transformer ratio
RHF-Active
insufficient
compensation (THDI
decreases but is
higher than
expected)
Phase angle
Setting the phase angle
compensation with patience and
carefully step by step, Trial and error
iteration
Low impedance
Low impedance of the connection
result in very harmonic levels before
compensation. It is highly
recommended to install impedance
as first counter measurement
against harmonics (for Drives
basically DC or AC chokes).
Error signal
(red LED)
System settings
- Observe chapter 5.3.9!
- Check for first error than for second
No communication
Software settings
Improve baud rate and/or interface
selection
Further possible alerts and troubleshooting can be found in the RHF-Active commissioning
guide.