Nakanishi E4000 CONTROLLER - Troubleshooting Guide

Trouble Cause Inspection / Corrective Active
Motor Speed is not
displayed correctly.
The Maximum Motor Rotation
speed not more than desired Motor
Rotation Speed set by parameter
.
Setting the Maximum Motor Rotation
Speed more than Motor Rotation Speed by
parameter
.
(Refer to P91 " 18 - 4 ④
Setting
Maximum Motor Speed " section.)
Incorrect setting of the Motor Rotation
Speed as set by parameter
.
Setting the Motor Rotation Speed by selected
Motor Speed Rotation set in parameter .
If in AUTO,
is set to OFF, change
to
.
Spindle does not rotate or
rotate smoothly.
The spindles bearings have been
damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The motor has been damaged. Replace the motor.
(Return to NAKANISHI dealer service.)
Overheating during
rotation.
Cutting debris has contaminated
the ball bearings, and the ball
bearings are damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer serv
ice.)
Low air pressure. Check air hose connection and air pressure.
Abnormal vibration or
noise during rotation.
The tool is bent. Replace the tool.
Cutting debris has contaminated
the ball bearings.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The spindle bearings has been
damaged.
Tool slippage. Collet or collet nut are not correctly
installed.
Check and clean the collet and collet nut.
Reinstall the collet and collet nut.
The collet and the collet nut are
worn.
Replace the collet and collet nut.
High run-out. The tool is bent. Change the tool.
Collet nut is not correctly installed. Secure the collet and the collet nut correctly.
The collet and the collet nut are
worn.
Replace the collet and the collet nut.
Inside of the spindle is worn. Replace the spindle shaft.
(Return to NAKANISHI dealer
service.)
Contaminants inside the collet and
the collet nut or the spindle.
Clean the collet, collet nut and the inside of
the taper and spindle.
The spindle bearings have been
damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
100
24. DISPOSAL OF THE CONTROLLER
When disposal of a CONTROLLER is necessary, follow the instructions from your local government agency for
proper disposal of electrical components .