Operation Manual

RUNRACE : Service & Maintenance Manual - rev. 2.0
Page 6.28
6.7. THE DISPLAYED SPEED IS INCORRECT
The machine displays this error if:
• the calibration is incorrect;
• there are HW problems with the CPU board - inverter interface – inverter and motor group.
THE DISPLAYED SPEED
IS INCORRECT
Is the relationship between the
display ed speed and the inv erter
f requency correct?
Is the inv erter control v oltage correct?
YES
NO
YES
Replace the inv erter
1
3
NO
The machine is operating
correctly
Is the inv erter control v oltage at the
output of the inv erter interf ace board
correct?
Check and/or replace
cable RN-5TQ between
the inv erter interf ace
board and the inv erter
YES
4
NO
A
2
Check the inv erter
parameters setting and
regulate the speed
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