KEB COMBIVERT F5 Reference Manual page 277

Error/Message Alt. /
(NUM)
Error Motor EOH2
Protection (30)
*Additional information at end of section
Diagnostics and Troubleshooting
Description Cause/Solution/Troubleshoot
Electronic Excessive RMS motor current according to the LM08
Motor Overload Electric Motor Protection overload curve or if the LM11
protection was Peak Motor Current Factor is exceeded for more than 3
activated. seconds for PM Synchronous Motors.
For induction motors the baseline current for Electric
Motor Protection corresponds to the LM09 Electric Motor
Overload Current.
For PM Synchronous Motors the baseline current for
Electric Motor Protection corresponds to the LM03 Motor
Current and the Peak Motor Current Factor is LM11.
Causes of excessive RMS current would be:
Incorrect motor data.
Verify motor data, specifically the motor rated speed
and frequency relationship for PM Synchronous
Motors (see Section 5.5.2, LM02 or LM04 for
details).
Verify correct encoder settings including:
LE02 Encoder Pulse Number
LE03 Swap Encoder Channels (A/B setting)
LE06 Encoder Pole position for PM Synchronous
Motors. Relearn Encoder Pole Position as needed
(see Section 5.10.1 or 5.10.2).
High mechanical load/issues (friction).
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