Nakanishi E2280 Operation Manual page 58

Trouble Cause
Cannot set the motor Either the required speed value is higher
speed to its maximum than the maximum rotation speed of the
allowable motor motor, or the upper limit of the rotational
rotation speed. speed has been set in parameter
Parameter
mode. Maximum rotation speed of the
Motor by an External Speed Control
Voltage is set to the characteristics of
30,000min
Air Input Monitoring Override is set in the
maximum speed has been limited to
30,000min
Parameter
Cannot change the
motor rotation speed
The motor rotation speed is not set in the
on the Speed Point.
Speed Point.
The rotation speed setting is fixed by
parameter
Spindle does not The spindles bearings have been damaged. Replace the ball bearings.
rotate or rotate
smoothly.
The motor has been damaged.
Overheating during Cutting debris has contaminated the ball
rotation. bearings, and the ball bearings are
damaged.
Abnormal vibration or The tool shank is bent.
noise during rotation.
Cutting debris has contaminated the ball
bearings.
The spindle ball bearings have been
damaged.
Tool slippage. Collet or collet nut are not correctly
installed.
The collet and the collet nut are worn.
.
is when set in AUTO
-1
.
parameter to and the motor's
-1
(rpm).
is not set to
or , or
Inspection / Corrective Active
Set the Maximum Rotation Speed to a
value less than the Motor Rotation Speed
set in Parameter
(Refer to P105 " 18 - 4 ⑤
or
Maximum Motor No. 1 Speed " section.)
(Refer to P106 " 18 - 4 ⑥
Maximum Motor No. 2 Speed " section.)
Check the setting of parameter
(Refer to P108 " 18 - 4 ⑩
Selection of Motor Speed Control Voltage /
DC+10V Signal Method " section.)
Check the setting of parameter
(Refer to P108 " 18 - 4 ⑨
Air Input Monitoring Override " section.)
. Check the setting of parameter
(Refer to P106 " 18-4 ⑦
External Speed Control Mode " section.)
Check the setting for parameter
. , or
When using Motor No. 1 :
Refer to P105 " 18 - 4 ③
Motor No. 1 Speed " or P105 " 18 - 4 ⑤
Setting Maximum Motor No.1 Speed ".
When using Motor No. 2 :
Refer to P105 " 18 - 4 ④
Motor No.2 Speed " or P106 " 18 - 4 ⑥
Setting Maximum Motor No.2 Speed ".
(Return to NAKANISHI dealer service.)
Replace the motor.
(Return to NAKANISHI dealer service.)
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Replace the tool.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Check and clean the collet and collet nut.
Reinstall the collet and collet nut.
Replace the collet and collet nut.
or .
Setting
Setting
.
Selection of
.
Selection of
.
Selection of
or
.
Setting Fixed
Setting Fixed
113