Nakanishi Espert 500 Operation Manual

Espert 500
OPERATION MANUAL
Thank you for purchasing Espert 500. This is a high-precision, extremely high speed micromotor rotary hand tool
system. This system is designed for high-precision, small diameter deburring, grinding and a wide variety of other
applications.
Keep this Operation Manual near Espert 500 system for any operators to refer to whenever operating this system.
Please read this Operation Manual carefully prior to use.
Cautions for handling and operation
Read these cautions carefully and only use in the manner intended.
Safety instructions are intended to avoid potential hazards that could result in personal injury or damage to
the device. Safety instructions are classified as follows in accordance with the seriousness of the risk.
Class
A hazard that could result in bodily injury or damage to the device if the safety instructions are not
WARNING
followed.
A hazard that could result in light or moderate bodily injury or damage to the device if the safety
CAUTION
instructions are not followed.
NOTICE
General information needed to operate the device safely.
A. GROUNDING INSTRUCTIONS
In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of
①
electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The
plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and
ordinances.
Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.
②
Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation
③
having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or
replacement of the electric cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal.
Check with a qualified electrician or service personnel if the grounding instructions are not completely understood, or if in doubt
④
as to whether the tool is properly grounded.
Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the tool's plug.
⑤
Repair or replace damaged or worn cord immediately.
⑥
(120V) This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A in Figure (below).
⑦
The tool has a grounding plug that looks like the plug illustrated in Sketch A in figure (below). A temporary adapter, which looks
like the adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-pole receptacle as shown in Sketch B if
a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can be
installed by a qualified electrician. The green-colored rigid ear, Iug, and the like, extending from the adapter must be connected
to a permanent ground such as a properly grounded outlet box.
Note : Adopter (Figure B) not for use in Canada.
Grounding Method
METAL SCREW
COVER OF GROUND
OUTLET BOX
GROUNDING
PIN
USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure
⑧
to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting
in loss of power and overheating. Table (below) shows the correct size to use depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.
Minimum gauge for cord
Volts
Ampere Rating 120V
240V
Not
More
More
Than
Than
0 6
6 10
10 12
12 16
Only the applicable parts ot the Table need to be included. For instance, a 120volt product
need include the 240-volt heading.
B. OTHER WARNING INSTRUCTIONS
Always wear cap, gloves, Iong sleeve shirt, safety glasses and hearing protection anytime this device is in use.
①
Do Not Touch the attachment or motor when the system is operating.
②
This is a high torque system and burs can grab on the workpiece. Always wear gloves to prevent injury anytime you are using
③
this system. Grinding and deburring produces lots of chips and other dust, keep work are clean and put away items that can be
damaged by chips, sand or other contaminants.
Check that the collet has been securely tightened prior to each use. Burs can fly loose from the chuck and injure operator or
④
anyone nearby.
Avoid applying heavy hand pressure during operation; Iet the tool do the work. Heavy force can bend or break bur shanks which
⑤
can injure operator or anyone nearby. If the motor slows down noticeably during operation, you are applying too much pressure;
this type of operation will shorten motor, attachment and tool life and dramatically reduce productivity.
Do not use bent, broken, cracked or damaged tools, or tools with excessive runout. When using tools with a very large head to
⑥
shank diameter ratio sudden speed increases can bend or break shank. When using a new or large tool, rotate it at low speed
and increase speed gradually for safety.
Always operate tools within the tool manufacturer's recommended speed limits. Use of a tool outside of the manufacturer's
⑦
recommended speed limits could cause damage to the spindle and injury to the operator. A foot pedal can be used to vary
speed.
Do not hit or drop the attachment or motor because the shock can damage internal components. Always set the control unit on a
⑧
flat, hard, steady surface.
If the control unit, motor or attachment emit smoke, burning plastic odor or any other unusual odor, please immediately turn off
⑨
the power switch, disconnect the power cord and send to NAKANISHI for service.
Never attempt to operate this system, touch power cord or switch unit on or off, etc. with wet hands. Failure to adhere to this
⑩
warning can result in severe electric shock.
Do not exceed 13mm overhang for mounted grindstones. In case overhang must exceed 13mm reduce the motor speed in
⑪
accordance with Table 1 .
Table 1. Overhang versus Speed
Overhang (mm) Maximum Operating Speed (rpm)
20 N x 0.5
25 N x 0.3
50 N x 0.1
N : Max. operating speed at 13mm overhang.
C. CAUTION
This system can operate in temperatures from 0 to 40
① ℃
can short out and there is danger of electric shock.
This system is not approved for use in flammable or explosive environments or with flammable or explosive materials.
②
Never oil the bearings. This attachment is assembled with permanently greased bearings.
③
Please check the motor and handpiece prior to each use for vibration, abnormal noises, heat, and rough or stiff rotation. If any of
④
the above conditions are beyond acceptable limits, please send the system to NAKANISHI for service.
Never move the Chuck Control Ring to Open while the motor is running, the motor and attachment will be damaged. Only
⑤
change tool with the motor completely stopped.
When using large cutting tools, tools with a head diameter larger than 4mm rotate the motor and attachment at slow speed. It is
⑥
very easy to bend and break large cutting tools at high rotation speeds.
If the motor protection circuit repetitively activates and stops the motor, you are using too much force. Please use less hand force
⑦
and continue the operation. Heavy handed usage will result in dramatically shortened motor, attachment and tool life.
please clean the chuck and spindle center shaft weekly as failure to do this can cause contaminants to build up in the chuck and
⑧
increase runout or reduce the clamping strength of the chuck.
D. NOTICE
Do not tighten the collet without mounting a cutting tool or dummy bur as this will result in damage to the collet and spindle.
①
Don't use pencils, pens or other sharp objects on the Front Panel buttons.
②
User is solely responsible for maintaining control of operation, maintenance and periodic inspection of the system.
③
Component Names
Control Unit
①
Motor/Attachment
②
NAKANISHI Smart Switch
③
Optional Foot Pedal
④
Power Switch
⑤
Power Lamp
⑥
Reset Lamp
⑦
Fig.2
OM-K0331E Rev.A
Degree of Risk
ADAPTER
GROUNDING
MEANS GROUNDING
PIN
Total length of cord
7.5m (25ft.) 15m (50ft.) 30m (100ft.) 45m (150ft.)
15m (50ft.) 30m (100ft). 60m (200ft.) 90m (300ft.)
18 16 16 14
18 16 14 12
16 16 14 12
14 12 Not Recommended
13
. If condensation forms on the unit please do not operate the system it
℃
Fig.1
Speed Display Motor A Connector
⑧ ⑮
Speed Control Knob Motor B Connector
⑨ ⑯
Speed Limit Release Button Foot Pedal Connector
⑩ ⑰
Forward/Reverse Power Cord
⑪ ⑱
(FC-40) Selector Switch power Connector Assembly
⑲
FiXpeed Switch Handpiece Stand
⑫ ⑳
Motor A Switch
⑬
Motor B Switch
⑭
Setting Up the Control Unit
1.Connecting the Motor/Attachment
Insert the motor cord plug into the Motor Plug Connector
align the pin on the plug with the groove on the connector and
tighten the motor cord plug nut. (Fig. 3)
2.Connecting the Optional Foot Pedal
Insert the foot pedal cord plug into the Foot Pedal Connector
and align the pin on the plug with the groove on the connector. (Fig.
4)
3.Connecting the Power Cord
Insert the Power Cord plug into the Power Connector Assembly
⑱
on the back of the control unit securely and carefully align the
⑲
pins. (Fig. 5)
Operating Procedures
(1) Connect Power Cord to AC plug.
⑱
(2) Make sure the Speed Control Knob is set at the lowest speed position.
⑨
(3) Turn Power Switch ON (Green Power Lamp will light)
⑤
(4) Select the direction of rotation with the Forward/Reverse Selector Switch
direction changes.
(5) To switch between motor A and motor B press either A
control unit for the selected motor will light. Either push A
Smart Switch on the appropriate motor.
CAUTIONS
・
If the motor lamp is already lit pressing the A
the control unit's front panel before pushing the motor select button.
・
Motor A and B can not be run simultaneously.
Operation 1
Manual Operation
(6) Set the rotation speed with the Speed Control Knob
(7) Select the desired motor by pressing either Motor Switch A
A = A Motor B = B Motor
⑬ ⑭
After selecting the motor either press the NAKANISHI Smart Switch
(8) To stop the motor rotation either press Motor Switch A
Operation 2
Foot Pedal Operation
(6) Set the maximum rotation speed with the Speed Control Knob
(7) Depress Foot Pedal and the motor will rotate. The rotation speed can be varied up to the preset maximum,
④
depending on the degree of depression of the Foot Pedal
※
Auto Speed System
To fix the speed within the range set by the Speed Control Knob
to the desired speed and press Motor Switch A
④
the control unit will flash and the rotation speed will be maintained even if the Foot Pedal
Auto Speed System press Motor Switch A or B
⑬ ⑭
Memory Speed Function, FiXpeed
(1) Setting the memory speed function
First with the motor stopped, preset the desired speed on the Speed Control Knob
Switch for more than 1 second. A 'beep' will sound and the FiXpeed lamp will light. The motor is now set to run
⑫
at the FiXpeed setting.
To Change FiXpeed Memory
Repeat the above procedure.
NOTICE
FiXpeed memory cannot be set in excess of 30,000 min
(2) Using Memory Speed Function
Select the desired motor by pressing either Motor Switch A
A = A Motor B = B Motor
⑬ ⑭
After selecting the motor either press the NAKANISHI Smart Switch
FiXpeed lamp will flash when the motor is running. During Foot Pedal
act as the upper limit and the Foot Pedal will still vary speed.
④
(3) Clearing the FiXpeed Memory
Push and hold the FiXpeed Switch , a 'beep' will sound and the FiXpeed lamp will shut off. The FiXpeed
⑫
memory is cleared.
(4) To Undo the Clear
Press the FiXpeed Switch , the FiXpeed lamp will light. The FiXpeed memory has been restored.
⑫
When the Espert 500 system is shipped from the factory, the FiXpeed is preset for both motor A and B to 20,000
※
min (rpm).
-1
Speed Limit
When using small diameter burs the Espert 500 system can be operated at more than 40,000min
Speed Limit Release Button and turn the Speed Control Knob
⑩
CAUTION
-1
Use of more than 40,000 min (rpm) is only allowable when the bur manufacturer specifies the maximum
-1
acceptable speed in excess of 40,000 min (rpm). NEVER use any tools beyond the tool manufacturer's
recommended maximum speed.
Motor Protection Circuit
When the motor is operated with a load exceeding its limits or the handpiece is locked, the Motor Protection Circuit
operates and interrupts the power supply to the motor. When the Motor Protection Circuit has been triggered the
Reset Lamp Iights and an Error Code appears on the Speed Display
⑦
Resetting the Motor Protection Circuit
During manual operation the circuit can be reset by pressing Motor Switch A
operation, release the Foot Pedal completely and the circuit will be reset.
④
Power Up Memory Function
When the Power Switch is turned On, the rotation direction and Hand/Foot selections being used when the unit
⑤
was shut down are restored. Please pay careful attention to the rotation direction.
Error 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
⑧
Error Code Description
E0 Self-Check Error Internal Memory Malfunction
Long time use at high loads (over current)
E1 Over current detected Power Cord Shorted
Motor Winding Shorted
E2 Over voltage detected Motor Cord Power Line cut
Faulty Sensor (Hall IC) in motor
E3 Motor Sensor Error Motor Cord Disconnected
Motor Cord Sensor Line cut
Control Unit thermal shut down due to extended use at high loads
E4
Control Unit Overheat
or unit placed in high temperature environment
Abnormal voltage generated in motor start/stop circuit
E5
Brake Circuit Error
Faulty start/stop circuit
Chuck Open
E6 Rotor Lock Error Bad Handpiece
Bad Motor
For solutions to the error codes please see the Troubleshooting Section of this manual.
and
⑮
⑰
. Each time this switch is pressed, the
⑪
or B to select the respective motor. The lamp on the
⑬ ⑭
or B again to start rotation or push the NAKANISHl
⑬ ⑭
⑬ ⑭
or B button will start rotation. Please look carefully at
and check the speed on the Speed Display
⑨
or B .
⑬ ⑭
or press the Motor Switch again.
③
or B or the NAKANISHI Smart Switch again.
⑬ ⑭
and check the speed on the Speed Display
⑨
.
④
, with the motor running, depress the Foot Pedal
⑨
or B , depending on which motor is being used. The lamp on
⑬ ⑭
is released. To cancel the
④
, the NAKANISHI Smart Switch or depress the Foot Pedal
③
. Next, press the FiXpeed
⑨
-1
(rpm).
or B .
⑬ ⑭
or press the Motor Switch again. The
③
operation the FiXpeed set in memory will
④
-1
to the desired speed.
⑨
.
⑧
or B again. During foot pedal
⑬ ⑭
will display an Error Code.
Cause
Fig. 3
Fig. 4
Fig. 5
.
⑧
.
⑧
again.
④
(rpm). Press the