9
12
When the Power Switch is turned on, the rotation direction made when the switch was last
turned off are restored. Special attention should be given to the rotation direction.
7.
Memory Function
When the motor is stopped due to some trouble such as a failure, overload, wire breakage or
misuse, Speed Display displays the error code for checking the status of the unit and
understanding the cause of the trouble easily.
8.
Error Code
Speed Limit Release Button
For countermeasures against error displays, see the section on 15.Troubleshooting.
Error cord
E0
E1
E2
E3
E4
E5
E6
E8
E9
EF
Description
Self-check error
Overcurrent detection error
(Hard)
Overvoltage detection error
Motor sensor error
Unit overheat error
PAM circuit error
Rotor lock error
Overvoltage detection error
(Soft)
ITRIP error
Foot pedal error
Cause
• Abnormal internal memory
• Broken internal memory
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shorted motor winding
• Failure of a turbine adapter
• Shorted cord (power line), damaged circuit
• Broken internal circuit
• Failure of a turbine adapter
• Faulty sensor (Hall IC) in the motor
• Disconnected motor cord
• Severed cord (signal line)
• Open chuck
• Faulty handpiece
• If the cord of the turbine adapter is loosed.
• Temperature rise in the unit due to longtime
use at a high load
• Unit placed under high temperature
• Abnormal voltage generated in start / stop
circuit
• Faulty start / stop circuit from PAM (L Slide)
• Open chuck
• Faulty handpiece
• Motor Faulty
• Faulty sensor (Hall IC) in the motor
• Severed cord (signal, power line)
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shortstop of the motor winding
• Failure of a turbine adapter
Faulty motor and circuit
• Faulty Foot Pedal or Shorted Foot Pedal cord
• Broken internal circuit
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