13
ERROR CODES
8888
Loss of communication between
the motor electronics board, the
converter electronics board and
the LCD module when powering
up
Check the connection of the coupling cable
E1
Overload of the converter.
At the tool, turn the switch OFF and then ON again
E2
Overheat of the converter
As soon as temperature returns to normal, at the tool, turn
the switch OFF and then ON again
E3
Under voltage
As soon as supply voltage returns to normal, at the tool,
turn the switch OFF and then ON again
E4
Over voltage
As soon as supply voltage returns to normal, at the tool,
turn the switch OFF and then ON
E5
Excessive back voltage from the
motor brake to the converter
At the converter, press the POWER button to turn the power
OFF and then back ON again
(If the problem persists, bring the unit to an authorized
service center for repair)
E6
RCD current leak detection
between the converter and the
voltage supply
Check connections and then, at the converter, press the
POWER button to turn the power OFF and then back ON
again
(If the problem persists, bring the unit to an authorized
service center for repair)
E7
Hall effect sensor error
At the converter, press the POWER button to turn the power
OFF and then back ON again
(If the problem persists, bring the unit to an authorized
service center for repair)
E8
Motor overheat
Allow the motor to cool.
Then, at the tool, turn the switch OFF and then ON again
(If the temperature has sill not dropped sufficiently, wait
longer for the temperature to drop to the acceptable range)
E91
Loss of communication between
the converter electronics
board and LCD module during
operation
At the converter, try pressing the POWER button to turn
the power OFF and then back ON again. (If the problem
persists, bring the unit to an authorized
service center for repair)
E92
Loss of communication between
the motor electronics board
and the LCD module during
operation
Check the connection of the coupling cable. Then, at the
tool, try turning the switch OFF and then ON again (If the
problem persists, bring the unit to an authorized
service center for repair)
E16
No signal from the motor
temperature sensor
At the tool, try turning the switch OFF and then ON again (If
the problem persists, bring the unit to an authorized service
center for repair)
E17
Motor temperature sensor short
circuited
At the tool, try turning the switch OFF and then ON again (If
the problem persists, bring the unit to an authorized service
center for repair)
