Serror Codes; Sfuse Replacement - Nakanishi Emax Evoluion Operation Manual

SError Codes

When the Motor Protection Circuit stops the motor due to some system failure, such as overload,
wire breakage, misuse or circuit problems, the Speed Display e will display an Error Code.
Error cord
E 0 Self-check error
Overcurrent detection error
E 1
(Hard)
E 2 Overvoltage detection error
E 3 Motor sensor error
E 4 Unit overheat error
E 5 PAM circuit error
E 6 Rotor lock error
Overvoltage detection error
E 8
(Soft)
E 9 ITRIP error
E F Foot pedal error
For solutions to the error codes please see the Troubleshooting Section of this manual.

SFuse Replacement

Fuses are located in the Power Connector Assembly @3 .
Depress the spring tabs located on the top and bottom of the
Power Connector Assembly and remove it to change the fuses.
(T1.6AH250V for 120V, T800mAH250V for 230V). (Fig. 7)
NOTE
Please make sure to replace fuses with the same rated 'Slow Blow' or 'Time Delay' type
fuses. Failure to replace with the proper type fuse will result in continuous fuse failures or
damage to the unit and motor.
CAUTION
Fuses blow only when a short circuit or voltage spike on the AC Iine occurs. If you are
uncertain of the cause for a fuse failing, send the unit to an authorized NAKANISHI
service shop for repair.
7
Description
• Abnormal internal memory
• Broken internal memory
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shorted motor winding
• Shorted cord (power line),damaged circuit
• Broken internal circuit
• Faulty sensor (Hall IC)
• Disconnected motor cord
• Severed cord (signal line)
• 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)
• Severed cord (signal, power line)
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shortstop of the motor winding
• Faulty motor and circuit
• Faulty Foot Pedal or Shorted Foot Pedal cord
• Broken internal circuit
Cause
23
Fig. 7