Nakanishi iSpeed3 User manual


IMPORTANT INSTRUCTIONS AND WARNINGS-Electric Device
1. CAUTION FOR HANDLING AND OPERATION
2. FEATURES
3. SPECIFICATIONS
4. SYSTEM CHART
5. TORQUE CHARACTERISTICS
6. NOMENCLATURE
7. CHANGING FUSES
8. BRACKET INSTALLATION
9. POWER CORD CONNECTION
10. MOTOR CORD CONNECTION
P1
P3
P4
P5
P6
P7
P7
P9
P10
P11
P11
11. CHANGING TOOLS
12. REPLACING THE COLLET CHUCK
13. INSTALLATION OF THE MOTOR SPINDLE
14. MOTOR CURRENT DISPLAY AND ADJUSTING THE CLAMPING PRESSURE
15. AIR HOSE CONNECTION AND  AIR PRESSURE SETTINGS
16. BREAK-IN PROCRDURE
17. OPERATION PROCEDURE
18. EXTERNAL INPUT/OUTPUT CONTROL SIGNAL SPECIFICATIONS
19. PROTECT FUNCTION
20. SETTING OF OPERATING PARAMETERS
21. TROUBLESHOOTING
P12
P12
P13
P14
P15
P16
P16
P17
P26
P29
P37
CONTENTS
iSpeed3 Control Unit

1
IMPORTANT INSTRUCTIONS AND WARNINGS -Electric Device
WARNING!
When using electric tools, basic safety precautions should always be followed to reduce the risk of fire, electrical
shock and personal injury.
Read all these instructions before operating this product and save these instructions.
A. GROUNDING INSTRUCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
I n the event of malfunction or breakdown, grounding provides a path of least resistance for electric current
to reduce the risk of electric shock. This tool is equipped with an electric cord with 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 does not fit the outlet. A qualified electrician must install the proper outlet.
Improper connection of the grounding conductor can result in electric shock. The grounding conductor has an outer
insulation that is green with or without yellow stripes.
If repair or replacement of the electric cord or plug is necessary, do not connect the grounding conductor
to a live terminal.
Check with a qualified electrician or service person if the grounding instructions are not completely understood,
or if in doubt 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 power
cord's plug.
Repair or replace a damaged or worn cord immediately.
This tool must be used on a circuit that has an outlet that looks like the one illustrated in sketch A in figure
(see below
) .
Install an over current protective device with a maximum of 10 Amps on the control units main power circuit.
USE A PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an
extension cord, be sure to use one heavy enough to carry the current your product will draw.
An undersized cord will cause a drop the line voltage resulting in loss of power and overheating.
Grounding Method
A
GROUNDING PIN
GROUNDING
CONTACT
COVER GROUND
OUTLET BOX

2
B. OTHER WARNING INSTRUCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
For your own safety read instruction manual before operating this tool.
Replace cracked collet chuck or chuck nut immediately.
Always use guards and eye shields.
Do not over-tighten the chuck nut.
Use only NAKANISHI manufactured arbors for grinding and sawing applications.
REMOVE ADJUSTING KEYS AND WRENCHES. Always check to see that keys and adjusting wrenches are
removed from tool before turning the unit on.
KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
DO NOT USE IN DANGEROUS ENVIRONMENTS. Do not use power tools in damp or wet locations, or expose
them
to rain.
Keep the work area well lighted.
There is a risk of injury due to accidental starting. Do not use in an area where children may be present.
DO NOT FORCE THE TOOL. It will do the job better and safer at the rate for which it was designed.
USE THE COLLECT TOOL. Do not force tools or attachments to do a job for which it was not designed.
WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neck ties, rings, bracelets, or other jewelry
that
might get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain
long hair.
ALWAYS USE SAFETY GLASSES. Everyday eyeglasses only have impact resistant lenses, they are not safety
glasses. Also use face or dust mask if the cutting operation is dusty.
SECURE YOUR WORK. Use clamps or a vise to hold work at all times.
MAINTAIN TOOLS WITH CARE. Keep tool sharp and clean for best performance and to reduce the risk of injury.
Follow
instructions for changing accessories .
Rotate motor spindle in a low speed and increase speed gradually for safety, before operate.
DISCONNECT TOOLS before servicing or when changing accessories, such as blades, cutters etc.
REDUCE THE RISK OR UNINTENTIONAL STARTING. Make sure main power button is in off position before plugging in.
For recommended operating speed for various applications, please follow the instructions of the cutting tool manufacturers.

3
Class Degree of Risk
WARNING
A hazard that could result in body injury or damage to the device if the safety
instructions are not foll
owed.
CAUTION
A hazard that could result in light or moderate bodily injury or damage to the device if
the safety instructions are not followed.
CAUTION
WARNING
Thank you for purchasing the Ultra-Precision, High-Speed Motor Spindle System, iSpeed3.
The iSpeed3System was designed for use on CNC lathes and mills, robots, NC lathes and special purpose
machines. This system utilizes air to cool the Motor and purge the Spindle.
Please use a NAKANISHI air line kit to ensure that clean, dry, properly regulated air is supplied to the motor
spindle.
Please read this Operation Manual and Motor Spindle Operation Manual＜OM-K0614E＞carefully prior to use.
■
■
Read these cautions carefully and only use the iSpeed3in its intended manner.
Warnings and cautions are intended to avoid potential hazards that could result in personal injury or damage to the
device.
These are classified as follows in accordance with the seriousness of risk.
1. CAUTION FOR HANDLING AND OPERATION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
The iSpeed3is not a hand tool. It is designed to be used on CNC machines or special purpose
machines.
In the event of a malfunction or breakdown, grounding provides a path of least resistance
for
electric current, reducing the risk of electric shock. This system is equipped with an
electric cord with a grounding conductor and grounding plug.
The plug must plugged matching outlet that is properly installed and grounded in accordance
with
all local codes and ordnances.
Do not use in dangerous environments. Protect the control unit from moisture and other
contaminants.
Failure to protect control unit can result in damage to internal components
and injury to the operator.
Always wear safety glasses. Everyday eyeglasses only have impact resistant lenses, they ARE
NOT
safety glasses.
Never touch the motor spindle or cutting tool while the motor spindle is rotating.
Reduce the risk of unintentional starting. Make sure the main power button is in the Off position
before
connecting the control unit or plugging the system in.
Do not apply excessive force. This may cause collet chuck or chuck nut, tool slippage or tool damage.
Do not exceed the maximum allowable tool speed. For your safety, use tools below the maximum
allowable speed as set by the tool manufacturer.
Do not a bent, broken, chipped, out of round or sub-standard tool. They can shatter or explode,
and may cause injury.
Check to ensure that the supply voltage is the same as the control unitʼs rated voltage.
Never touch the power cord with wet hands. This may cause an electric shock.
Please make sure to use a power supply cord set which conforms to regulations /laws of the
country in use and which has voltage and current ratings according to product specifications.
1.
2.
3.
The motor cooling and spindle purge air is required to operate the system.
The input air line must be connected to the AIR IN connector on the rear of the control unit.
Air pressure between 0.2MPa-0.5MPa must be supplied.
Do not disassemble, modify or attempt to repair the control unit or motor spindle as it will damage
internal components.
There are no user serviceable parts available.
When an errors occurs and error lamp flashes, check and correct the cause of the malfunction before
continuing use. Failure to correct the problem will result in damage to the control unit and motor spindle.

4
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
When the warning lamp on the control unit lights, conditions exist that could result in dangerous
operation. Check operating conditions and continue to use only after correcting the problem.
D o not hit, drop or subject the motor spindle or control unit to shock. This will cause damage
to internal
components and result in malfunctions.
The electric motor spindle requires air for cooling and purging. Ensure that this air supply is
clean and dry. Introduction of dust, moisture and other contaminants into the motor spindle
will cause damage to the
internal components.
When using control unit continuously, refer to continuous area on torque Characteristics
Graph and check
LOAD meter for maximum output (3Green Lamps).
Do not place anything on top of the control unit.
Do not install the system next to RF noise sources, as malfunctions can occur. If smoke,
noise
or strange odors emanate from the control unit or motor spindles, immediately turn
OFF the Main Power Switch, disconnect and send to a NAKANISHI dealer for evaluation.
Stop working immediately when abnormal rotation or unusual vibration are observed.
Check the tool shank and collet chuck prior to use to ensure they are clean and free of debris.
The introduction of foreign particles or metal chips in to the collet chuck or spindle can cause
damage
and loss of precision.
Do not over tighten the collet chuck. This may cause spindle or collet chuck damage.
Use only tools with shank diameters within the tolerance of the selected collet chuck.
Select suitable products or tools for the applications. Do not exceed the capabilities of the
motor spindle or cutting tools.
Check if tools, collet chucks or chuck nut are damaged before attempting to operate.
Make sure that the collet chuck is properly tightened. The tool may be ejected during rotation
resulting in injury.
Attach the provided connector covers when not using Input/Output connector A/B.
Rotate motor spindle at a low speed and increase speed gradually for safety, before operating
at normal speed.
2. FEATURES
The iSpeed3 is a system that provides a maximum output (Machine shaft output) of 150W, consisting of a compact
Control Unit, Motor Spindle and Motor Cord.
The accurate rotational speed control, interfacing with external machine controls, protection functions,
input/output signals and an emergency stop function allow the iSpeed3Control Unit to establish a safe
spindle system with a variety of controllable features. The control enclosure is designed to prevent
debris/dust and splattered oil/water from entering it.
The Control Unit offers a wide range of rotation speeds (1,000 〜60,000min-1: MAX. 80,000min-1), and
the 3digit display allows you to set the speed in 100min-1increments.
2Motor Spindles can be connected to the control unit, switchable manually or by machine M-function.
Equipped with a Motor Current Display Function, clamping pressure can be monitored during motor/
spindle installation. A Key Hold Function is also equipped to prevent erroneous operation by touching
the control panel.
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㩷ԯ
㩷԰
3. SPECIFICATIONS
3-1Compatibility
The iSpeed3control unit is compatible with the following overseas safety standards.
・
・
Safety standard in North America (UL, CSA)
UL508C CSA A22.2No.14-05
EC Directive
Low Voltage Directive IEC/EN61800-5-1
EMC Directive EMS : EN61000-6-2
EMI : EN61000-6-4

5
3-2Specifications
Model NE273-10 NE273-12 NE273-20 NE273-23
Input AC 100V/1.3A
50/60 Hz
AC 120V/1.1A
50 / 60 Hz
AC200V/0.65A
50/60 Hz
AC230V/0.55A
50/60 Hz
Over Voltage Category Τ
Operating temperature
0 - 40
Ambient Humidity MAX. 85%
Speed Range 1,000 - 80,000min-1 (BM319/BM319F/BM319FC, BM320/BM320F)
1,000 - 60,000min-1 (BM322/BM322FR/BM322FL, BM325)
Control Signal
Input : Digital 9 (Photo Coupler)
Analog 2
Output : MOS Relay 9, Photo Coupler 1
Analog 3
Protection Function
Excess Current, Trouble with the internal Power Supply, Motor Cord Disconnect, Control Unit
Overheat, Brake Circuit Trouble, No Speed Signal, Low Air Pressure, Torque Over Load,
External Control Signal Error, Incompatible Motor, Over Speed, Emergency Stop Signal,
Emergency Stop Error, Internal Memory Error, Over Air Pressure
Pollution Degree 2
Weight 3.5kg
Dimensions W : 142mm D : 234mm H : 72mm
Transportation and
storage environment
Temperature -10 - 60 
Humidity 10 - 85 %
Atmospheric pressure 500 - 1060 hPa
Height above Sea Level Less than 2000 m
3-3 Standard Equipment
Model Standard Equipment・Accessories
NE273
・Power Cord 1pc.
・Input/Output Connector A cover 1pc.
・Input/Output Connector B cover 1pc.
・Plate Nut 4pcs.
・M3 Screw 4pcs.
・Fuse 2pcs.
・Motor No.1 Connector Cap 1pc.
・Motor No.2 Connector Cap 1pc.
・Air Hose with Filter 1pc.
・Mounting Bracket
2pcs.
・Power Cord Hook 1pc.
・Air Branching Joint 1pc.
・
Air Hose (95mm) for Air Branching Joint 1pc.
・Warning/Error Code Sheet 1sheet.
・Operation Manual 1set.
3-4 Diagrams
74
144 234
Fig. 1

6
4. SYSTEM CHART
Fig. 2
Brushless Motor Spindle
BM319F/BM319FC
BM320
BM320F
BM322FR/BM322FL
BM325
80,000min-1
60,000min-1
120V, 230V
*Cooled -air supplied.
Compressor
Air Line Kit
AL-0201
Control Unit
iSpeed3
BM319
BM322
0
1
2
3
4
5
6
7
01020304050607080
0
20
40
60
80
100
120
140
160
Speed䋨×10
3
min
-1
㧕
Torque
㧔cN
࡮
m㧕
Output㧔W㧕
Ourput
Torque
Cnticuous Duty Area
0
20
40
60
80
100
120
140
160
Output㧔W㧕
0 102030405060
Speed䋨㬍㪈㪇
㪊
min
-1
㧕
Torque
㧔cN
࡮
m㧕
Ourput
Torque
Cnticuous Duty Area
Cnticuous Duty Area
0
1
2
3
4
5
6
7
5. TORQUE CHARACTERISTICS
B M319/BM319F/BM319FC, BM320/BM320FBM322/BM322FR/BM322FL, BM325
5-1Motor Speed 80,000min-15-2Motor Speed 60,000min-1
Fig. 3Fig. 4
0
20
40
60
80
100
120
140
160
Output㧔W㧕
0 102030405060
Speed䋨㬍㪈㪇
㪊
min
-1
㧕
Torque
㧔cN
࡮
m㧕
Ourput
Torque
Cnticuous Duty Area
Cnticuous Duty Area
0
1
2
3
4
5
6
7
100V, 200V

7
6. NOMENCLATURE
6-1Front face details
Ԙ
ԙ
㩷Ԛ
㩷ԛ
㩷Ԝ
㩷ԝ
㩷Ԟ
㩷ԟ
㩷Ԡ
㩷ԡ
㩷Ԣ
Control Unit (iSpeed3)
Control Panel
Digital Speed Indicator (SPEED)
Preset Speed, Actual Speed, Warning and Error Codes are displayed (3digit). When the motor spindle is
stopped, the Preset Speed is displayed. When the motor spindle is rotating, the actual speed is displayed. This
display also shows the Error Codes when an error has occurred.
Load Monitor LED (LOAD)
The Motor Spindle load is displayed using 6LED's (3Green, 2Yellow, and 1Red). The amount of load
during rotation is displayed using the 6LED's. Motor Spindle can only be run for a short time in Yellow range.
Please refer to section 17 " PROTECT FUNCTION " of this manual for allowable duration of high load operations.
When any of the Yellow or Red LED's are lit, Warning LED Ԥwill flash. If this condition is continued
beyond the allowable interval the Error LED ԣwill flash and the motor spindle will stop to protect the
system.
Motor Speed Adjustment Button ＜(UP), (DOWN)＞
Manual adjustable speed control is possible. Pushing the (UP Arrow
)
button will increase motor speed, pushing
the (DOWN Arrow) button will decrease the speed. (1digit is 100min-1)
・Speed Range : 1,000 - 60,000min-
1
and 1,000 - 80,000min-
1
1,000 - 80,000min-
1
(
BM319/BM319F/BM319FC, BM320/BM320F
)
1,000 - 60,000min-
1
(
BM322/BM322FR/BM322FL, BM325
)
Start/Stop Button
Start and stops Motor Spindle rotation.
DIRECTION (DIR) Button
Right hand rotation (FWD.
)
and left hand rotation (REV.
)
are viewed from the cutting tool facing the
operator. With the cutting tool facing the operator right hand rotation
(
FWD.)will be clockwise rotation.
Motor Spindle Selection (MOTOR) Button
Select the motor spindle to be controlled, either motor spindle No. 1or No .2.
If motor spindle No. 1was selected, No 1LED ԧturns on.
CONTROL
(
CTRL)Button
This button selects motor spindle control from the iSpeed3control panel or from an external source.
Manual : iSpeed3Control panel Auto : External control through the Input/Output Connector A/B (CNC Control).
DISPLAY
(
DISP)Button
Select the Motor Speed Indication or Motor Current Indication.
・x 100min-1LED
Ԩ
lights : Motor Speed Indication. ・x 10mA LED
ԩ
lights : Motor Current Indication.
RESET
(
RESET)Button
This button resets and allows restarting of the motor spindle after an error has been corrected.
Some Error Codes will not allow the unit to be RESET until the control Main Power Switch has been cycled.
Fig. 5
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Ԛ
ԣԤԥԛ
ԧ
Ԩ
ԜԢԞ
ԟ Ԡ ԡ Ԧԩ
ԝ
Ԧ

8
ERROR LED
(
ERROR)
When a serious problem with the system is detected this LED will illuminate, the Motor Spindle is
stopped
and the Digital Speed Indicator Ԛdisplays the Error Code.
WARNING LED
(
WARNING)
The operating and working condition of the system are constantly monitored. When an improper condition
is detected, the Warning LED blinks and the Digital Speed Indicator
㽴
alternates between the Warning
Code and the actual or preset speed, depending on whether or not the motor spindle is rotating.
RUN LED
When the motor is rotating this LED
will flash.
KEY HOLD Button ( )
Please hold the Reset Button Ԣ㩷㪽㫆㫉
( 1to 2seconds). This disables all button functions.
If Key Hold is activated, displayed Dot
(
)in Digital Speed Indicator Ԛis displayed.
When releasing Key Hold, push and hold the Reset Button Ԣ
down for 1-2seconds.
㩷ԣ
㩷Ԥ
㩷ԥ
㩷Ԧ
6-2Rear face details
㩷ֈ
㩷։
㩷֊
㩷֋
㩷֌
㩷֍
㩷
㩷
ⓖ
㩷֏
㩷֐
㩷֑
Input/Output Connector A (D-Sub 25 Connector)
Input/Output Connector A is for automatic control and monitoring of motor spindle system. When not in use
please install the connector cover to prevent damage or contamination to the connector or pins.
Input/Output Connector B (D-Sub 15 Connector)
Input/Output
Connector B for automatic monitoring of emergency conditions. When not in use please install
the
connector cover to prevent damage or contamination to the connector or pins.
Motor connector No. 1
Motor connector for Motor No. 1.
Motor connector No. 2
Motor connector for Motor No. 2.
Air Input Joint (
Hose diameter : Ǿ6mm )
Supply air to cool and purge the motor spindle. Use clean dry air adjusted at 0.2to 0.5MPa from the
AL-0201 Air Line Kit.
When using the motor spindle, supply regulated air to control unit and set the
air pressure, referring to
Section 15-2“Setting Air Supply”. The air consumption is 30Nℓ/min when supplying air pressure of 0.2- 0.5
MPa.
Air Output Joint ( Hose diameter : Ǿ4mm )
Connect air hose to supply clean, dry, regulated air for motor cooling and purging. In order to connect two
motor spindles to the control unit, connect Ǿ4mm air hose (95mm) to air output joint on the rear of the
controlunit and branch the air by using the air branching joint.
Main Power Switch
Main Power Inlet : Insert the plug of the power cord. The control contains 2fuses. When replacing the
fuse, please use the specified fuse.
Fixing Power Cord Hook Bar
Power Cord Hook
(Refer to Section 9“POWER CORD CONNECTION”to secure.)
ֈ։
֊֍֌ ⓖ ֏
֐
֋֑
Fig. 6

9
WARNING
・
・
・
Before removing fuses make sure that the Main Power Switch ⓖ is turned OFF and
the power cord is disconnected from the power supply.
Make sure and use only the properly rated and type of fuse.
Failure to use the proper type and rated fuse will result in fire, injury, electric shock
and/or product damage.
7. CHANGING FUSES
㩷Ԭ
㩷ԭ
㩷
㩷Ԯ
Push on the clips on the top and bottom of the fuse holder and remove the fuse folder and fuses.
Remove the bad fuse or fuses and replace with the proper type and rating of fuse as listed below and as
determined
by the input voltage being used.
Specified fuse : T4.0AH (100V,120V) Part No. S505-4-R (Cooper Bussmann Inc.)
T2.0AH (200V,230V) Part No. S505-2-R (Cooper Bussmann Inc.)
Replace the fuse holder containing the fuses into the Fuse Inlet Box and make sure it snaps in place.
Cap
Fig. 7

10
Mounting Brackets (2pcs.) and Plate Nuts (4pcs.) are provided with the iSpeed3System.
The Mounting Bracket can be installed on the bottom, on the top surface and on the front side of the Control
Unit.
After installing the Mounting Bracket you can use the Screw cutouts to mount the Control Unit.
Insert the Plate Nut into the groove portion of the front side of the Control Unit.
Attach the Mounting Brackets (2pcs.) using the provided Screws (4pcs.) and Plate Nuts (4pcs.).
8. BRACKET INSTALLATION
CAUTION
If there is a possibility for the Control Unit to fall from its intended location. Be sure to install the
provided Mounting Brackets for safety.
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㩷ԭ
㩷
㩷Ԯ
㩷ԯ
㩷԰
Fig.9
Bracket
Fig.11
Fig. 8
Bracket
Fig. 13
8-2Top surface Mounting
Fig. 10 Bottom Mounting
Fig. 14 Front Side Mounting
Fig. 12 Top Surface Mounting
Plate Nut
Bracket
8-3Front side Mounting
䯴䎰䏒䏘䏑䏗䏌䏑䏊䎃䏄䏕䏈䏄䯵
7.5
49
7.5
196
4.54.5
176
64 40
38.2 21.4
4.5
72.5
20.5
60.5
4.5
176
40
8.5
196
䯴䎰䏒䏘䏑䏗䏌䏑䏊䎃䏄䏕䏈䏄䯵
䯴䎰䏒䏘䏑䏗䏌䏑䏊䎃䏄䏕䏈䏄䯵
7.5
49
7.5
196
4.5
176
4.5
64 40
8-1Bottom Mounting

11
9. POWER CORD CONNECTION
WARNING
Only use grounded power sources. Failure to properly ground the control unit may result in
electric shock, injury, fire and/or damage to the system components.
When connecting the power cord, make sure the Main Power Switch is turned OFF.
Insert the power cord hook to the fixing power cord hook bar on the rear of the control unit. Refer to the
Fig. 15.
Insert the female plug into the main power inlet box on the rear of the control unit. Refer to the Fig 16.
Secure the power cord by use of power cord hook. (Refer to Fig. 17.)
Push
Fig. 17
10. MOTOR CORD CONNECTION
CAUTION
Before connecting the motor cord, make sure the power source and control Main Power Switch㩷 ⓖ are turned OFF.
Ensure alignment pin upward.
Carefully insert the alignment pin into the alignment hole and push straight into the motor lead
port of the rear of the control unit.
Tighten the coupling nut.
Alignment Pin
Coupling Nut
Alignment Hole
CAUTION
When installing the product, provide space of approximately 10cm around the control unit for
easy access to the Air Inlet and the Power Cord.
Fig. 18 Fig. 19
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㩷
㩷ԭ
㩷Ԯ
㩷Ԭ
㩷ԭ
㩷Ԯ
Fixing Power Cord
Hook Bar ֐
Power Cord Hook ֑
Insert
Fig. 15
Main Power Inlet
֏
Power Cord
Insert
Fig. 16
Main Power Switch ⓖ

12
Fig. 20
11. CHANGING TOOLS
Remove the tool according to the section 11 " CHANGING TOOLS" procedure above and remove chuck nut
assembly. (Fig. 21)
The collet chuck and chuck nut are held together by a groove in the collet chuck and a frange in the chuck nut.
To remove the collet chuck, hold the chuck nut in one hand and push diagonally down on the collet chuck. The collet
chuck should be released (Fig. 22).
Install the new collet chuck in the chuck nut by positioning the collet chuck in the chuck nut and pressing down on a
flat surface. (Fig. 22)
Set the provided wrench (5x8) on the Spindle.
Place the provided wrench (9x11) on the chuck nut and turn it counterclockwise to loosen the collet chuck
and remove the tool. (The first turn will loosen the chuck nut, but the tool will not
release and turning will
become stiff. Keep turning through the stiffness and the collet chuck will open.)
Clean the collet chuck and chuck nut, then insert the new tool and tighten the collet chuck by turning
clockwise. Do not over tighten.
CAUTION
Do not tighten the collet chuck without inserting a cutting tool or dummy bur, as this will damage the
collet chuck, spindle or chuck nut, causing difficulty remove the collet chuck.
Fig. 21 Fig. 22
12. REPLACING THE COLLET CHUCK
Chuck Nut
Too l
Loosen
Tighten
Spindle
Chuck Nut
Too l
Spindle
Wrench Seat
Collet Chuck
Push
Chuck Nut
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ԭ
Ԯ
Ԭ
ԭ
Ԯ

13
22
40.5
Clamping Area
BM319 / BM320 BM322 / BM325
25
39.1
()
Clamping Area
()
Fig. 23
13. INSTALLATION OF THE MOTOR SPINDLE
13-1Fixturing a straight type motor spindle : BM319, BM320, BM322 and BM325.
When installing a motor spindle to a fixed base, make sure the fixed base is grounded in order to
avoid the risk of an electric shock.
Ԭ
When mounting motor spindle, refer to the clamping area etched on the spindle body (Fig. 23).
ԭ
The installation shown in Fig.24 is the recommended fixturing method. If this is not possible, install as shown in Fig. 25.
Do not use Set Screws directly in contact with the motor spindle body as shown in Fig. 26, as this will result in damage
to the motor spindle housing and internal components.
When mounting, never clamp directly over the bearings, as this will result in bearing damage.
WARNING
Fig. 24 Fig. 25 Fig. 26
Fastening Bolt
Bushing with Slit
Fastening Bolt Fastening Bolt
Slit of Bushing
Slit
CAUTION
Fastening Bolt
RECOMMENDATIONS
Split type holder
・When installing a motor spindle, do not hit, drop or cause shock to the motor spindle. This may
cause damage to internal components and result in malfunctions.
・Cautions when tightening the securing bolt
Do not over tighten the bolt. This may cause damage to motor spindle's precision.
Tighten the bolt until the motor spindle body can not be turn by hand within the fixture.
Extreme tightening is not necessary or recommended.
Apply working force and check that the motor spindle is tight before using.
（When adjusting
the clamping level, refer to Section 15 “MOTOR CURRENT DISPLAY AND ADJUSTING THE
CLAMPING LEVEL”of the iSpeed3control unit Operation Manual.）
・Advice when using split type holders and all similar types of installation methods.
Insert a shim into the holder bore, and tighten the bolt with minimal torque.
Manufacture the holder with roundness and cylindrical tolerance of less than 5μm.

14
CAUTION
Insert a thin shim into the split in the holder and reduce the shim size in 5μm increments until
motor spindle is held firmly.
Tighten the clamping bolt to the torque specified for that size and type of bolt.
The final responsibility for ensuring product's stability for use in a given application is left to
the designer
of the equipment in which NAKANISHI's motor spindle is installed.
NAKANISHI offers motor spindles with a wide variety of capabilities and specifications.
Please carefully check the product's specifications against the requirements of your application
and verify suitability and safety prior to initial use.
A flange type motor spindle is a motor spindle that installs with a factory mounted flange, without inserting a
sleeve over the motor spindle housing diameter section. This is designed to eliminate deformation/damage
of the motor spindle when performing the installation.
If the motor spindle housing diameter section is inserted and tightened using bolts or set screws, or in a solid
sleeve or a split holder arrangement, the main body will be geometrically deformed and assembly accuracy
will be compromised.
Problems such as rotation failure and heat generation will result. Absolutely never affix the motor spindle with
a bolt or set screw when using split type holders.
13-2Fixturing a flange type motor spindle : BM319F/BM319FC, BM320F, BM322FR and BM322FL.
Fig. 27
Fastening B olt
Table 1
Insert the motor spindle housing diameter section into the machines tool plate bore.
Secure the motor spindle through the counter-sunk holes (2locations) on the flange face using bolts as shown in
Motor S pindle Operation Manual Fig. 2, Fig. 4, Fig. 6and Fig. 7. Refer to table 1and Fig. 27.
Bolts M4Bolts (M4x 25) BM319F/BM319FC, BM320F
M5Bolts (M5x 25) BM322FR, BM322FL
Ԭ
ԭ
14. MOTOR CURRENT DISPLAY AND ADJUSTING THE CLAMPING PRESSURE
Adjust the clamping pressure level using the motor current display. Run the motor spindle at any speed and note
the current level while the motor spindle is not secured in any manner. Insert the motor spindle into the fixture
and carefully and slowly tighten. The Clamped Current Display should never be more than +1(+10mA) of the
current load reading before clamping. This is a very important step when installing the iSpeed3Motor Spindle.
The Control Unit has a function that displays load on the motor spindle in current (x10mA). (Refer to
section 6-1" Front face details 㽻㩹
). This display allows you to confirm the load/clamping level when fixing
the Motor Spindle in fixtures.
14-1MOTOR CURRENT DISPLAY
14-2Clamping the Motor Spindle

15
15. AIR HOSE CONNECTION AND AIR PRESSURE SETTINGS
CAUTION
1.
2.
3.
4.
5.
Regulate the air pressure between 0.2-0.5MPa. If inlet air pressure is too low the control unit
will not operate and an error E7occur.
The cooling air provides two functions, to cool the electric motor and to protect the spindle
from contaminants by providing a positive airflow.
Do not make any sharp bends in the air hose. Do not pull sharply on the air hose, as this can
cause the air hose to break , cutting off the air supply or weaken the air hose over time.
This will result in the deterioration of the motor and spindle.
Never supply over recommended regulated air pressure. There is a possibility of damage to the air
detection function within the control unit. This detector recognizes air input only, not air output.
If there is damage to the Air Out hose, the control unit is not able to detect that there is no air
being supplied to the motor spindle. This will cause premature motor spindle failure.
Insert the provided Ǿ6mm air hose with filter from the AL-0201 Air Line Kit into the air inlet joint ֌on the rear
of
the control unit. (If you are not using the AL-0201 Air Line Kit make sure that the inlet air supply is dry, clean,
regulated air.)
Insert the provided Ǿ4mm air hose into the back of the motor spindle.
Insert the other side of the φ4mm air hose into the Air Output Joint on the rear of the control unit. When
connecting
two motor spindles to the control unit, use the Air Branching Joint that has been provided.
This Air Branching Joint is to be used with only 2-Meter, 3-Meter and 5-Meter Motor cord/Air Lines. Two (2)
Motor Spindles cannot be connected to the control unit when using a 7-Meter Motor Cord/Air Line.
Set the air supply pressure according to Section 15-2 "Setting The Air Supply Pressure" table 2.
15-1Air Hose Connection
Ԭ
ԭ
Ԯ
ԯ
The air pressure requirement varies with the number of the motor connections and the length of the air hose (Quick Disconnect
Cord and Motor Cord). Verify the number of spindles and motor cord length before setting the pressure according to Table 2
15-2Setting The Air Supply Pressure
Motor Cord : BM3 □□ Motor Cord (Option)
The air hose length which comes
with quick disconnect cord
The air hose length that is used
with your motor cord.
Hose length
Fig. 29
֍Air Output Joint
Ǿ
6mm Air Hose with Filter
Air Input Joint ֌
Power Switch ⓖ
Air Joint
Fig. 28
Ǿ
4mm Air Hose
Motor Spindle

16
Total Hose Length(m) *Note 1 3.54.04.55.56.07.07.58.09.0
(1) One Motor Spindle is connected
to the Control Unit.
Air Pressure (MPa)
0.20.25 0.3
( 2 ) Two Motor Spindles are connected
to the Control Unit.
0.40.5
Not
Allowed.
*Note 2
*Note 1：
*Note 2：
"Hose Length" indicates total hose length consisting of the Quick Disconnect Hose and the Motor Cord
Hose. See Fig 29 to see how to calculate "Hose Length".
2Meter Type (2M) Quick Disconnect Cord CAN NOT be used with a 7Meter (7M) Motor Cord.
Table 2
Steps 123456
RotationSpeed (min-1) 15,000 30,000 40,000 50,000 60,000 80,000
Running Time (min) 15 10 10 15 10 10
Items to check
Spindle housing no hotter than
20 °C.
Spindle housing no hotter than
20 °C.
If hotter than
20 °C stop for at least 20
minutes, check installation and restart
Break-in procedure.
No Abnormal
Noises
Table 3
The iSpeed 3 Series is a high-precision, high-speed motor spindle. The following procedure must be followed to ensure proper
motor spindle operation and longevity.
The grease inside the bearings will settle during transportation, storage or service. If the motor spindle suddenly runs at high
speeds, grease will evacuate from the bearings, causing excessive heat resulting in bearing damage. After initial installation,
repair, or long periods of non operation, please follow the break-in procedure detailed in Table
3 . For 60 , 000 min-
1
spindles,
follow steps
1 through 5 . For 80 , 000 min-
1
spindles, follow steps 1 through 6 .
16. BREAK-IN PROCEDURE
Ԙ
ԙ
Ԛ
ԣԤԥԛ
ԧ
Ԩ
ԜԢԞ ԟ Ԡ ԡ Ԧԩ
17. OPERATION PROCEDURES
17-1. Select Control Mode (Manual/Auto)
㩷Ԭ
㩷ԭ
Using the CONTROL (CTRL) Button Ԡyou can select between Manual (Front panel control) or Auto
(External Signal Source) modes. External Signal Source can be used to control Motor Start/Stop, Rotation
Direction, Motor
Speed etc. From an external control source (CNC).
Manual Mode : Front panel option.
Auto Mode : Control by External Signal Source.
Fig. 30 Front face details Fig. 31 Rear face details
ֈ։
֋ ֊֍֌ⓖ֑
֐
֏
ԝ

17
17-2-2Setting Auto Mode
㩷Ԭ
㩷ԭ
㩷Ԯ
㩷㩷㩷㩷 䊶
㩷㩷㩷㩷 䊶
Setting Motor Rotation Direction
Input the Motor Rotation Direction Signal to Pin No.2: DIR_IN.
Right hand rotation is OFF 'Open' ("FWD." LED will light).
Left hand rotation is ON 'Closed' ("REV." LED will light).
Motor Start/Stop
Input the Motor Start Signal from Pin No. 14 : START.
Motor Rotating is ON 'Closed' (START/STOP LED will light).
Motor Stop is OFF 'Open' (START/STOP LED is off).
Setting Motor Speed
Input the Motor Speed Signal to Pin No.23 : VR
Motor Speed Range is 1,000 - 80,000min-1
The Motor speed is displayed in min-1. 800 equals 80,000min-1
All the iSpeed System functions can be controlled by Input Control Signals to Input/Output Connector A ֈ
17-3Setting other Parameters
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
㩷㩷 䊶
Error Output Signal.
Front Panel or External Signal Speed Control during Auto Mode Operation.
Fixed Motor Rotation Speed.
Maximum Motor Speed.
Selection of External Motor Speed Signal.
External Motor Start Command Signal Method.
Selection of Motor Acceleration and Deceleration Time
Selection Emergency Operating Function.
Setting the Level of Speed Achievement.
Error History Display.
- Confirmation of Parameter -
The following Parameters can also be preset.
Please refer to section 21 “SETTING OF OPERATING PARAMETERS” of this manual for details.
18-1. Input/Output connector A 㿢
㩷Ԭ Input/Output connector A 㿢
WARNING
Do not connect any circuit other than SELV (24VDC)(Safety Extra Low Voltage) to the
External Input/Output connector A 㿢, This will cause I/O board damage in the control
unit.
CAUTION
Input/Output connector A㿢 DO NOT USE PIN No. 16.
If PIN No. 16 is connected, the control unit will be damaged.
18. EXTERNAL INPUT/OUTPUT CONTROL SIGNAL SPECIFICATIONS
17-2Setting Motor Rotating Direction, Motor Start /Stop, Motor Speed.
17 -2-1Setting Manual Mode
㩷Ԭ
㩷ԭ
㩷Ԯ
㩷㩷㩷㩷 䊶
㩷㩷㩷㩷 䊶
㩷㩷㩷㩷 䊶
Set Motor Rotating Direction
Push the Motor Rotation Direction Button Ԟ.
Select FWD. Right hand rotation.
Select REV. Left hand rotation.
Motor Start/Stop
Push Start/Stop Button ԝand START LED will illuminate.
Setting Motor Speed
Set the speed by pushing the Motor Speed Adjustment Button Ԝ.
Motor Speed Range is 1,000-80,000 min-1.
(BM319/BM319F/BM319FC, BM320/BM320F)
Motor Speed Range is 1.000-60,000 min-1. (BM322/BM322FR/BM322FL, BM325)
The Motor speed is displayed in 100 min-1. 800 = 80,000 min-1.

18
Pin
No.
Pin
Name Description
Input/
Output
Signal Function
1COM_1
External Power Source
for External Inputs
Input 0V or+24VDC Power source to be used for External Inputs Signals.
2DIR_IN Rotating Direction
Signal Input OFF (Open) : FWD.
ON (Closed) : REV. Controls the rotational direction of the motor spindle.
3CNT_IN
Speed Change
Pulse Signals
Input OFF (Open) →ON (Closed)
One pulse will increase or decrease 100min-1in Spindle
Speed depending on (parameter ) setting.
4RESET Error Release Signal Input ON (Closed) →OFF(Open)
Error Code can be released and the system restarted
by toggling this signal OFF and ON.
5SEL1Speed Change Point
Select Signal "1"Input OFF (Open)
ON (Closed)
Select 4Motor Speeds by using SEL0and SEL1.(Refer
to table 4.) (
Refer to parameter
for the setting of
Speed Point U1- U2.)
6RUN Rotating Signal Output OFF (Open) : Stopped
ON (Closed) : Rotating Output shows that the motor is rotating.
7 DIR_OUT
Rotating Direction
Signal Output OFF (Open) : FWD
ON (Closed) : REV Output shows the direction of the Motor is rotating.
8ERR Error Signal Output OFF (Open) : Normal
ON (Closed) : Error Error has occurred. (Parameter )
9MT_SEL Motor Select Signal Input
OFF (Open) : Motor No. 1
ON (Closed) : Motor No. 2
Select the Motor to be used.
10 SEL_MT Selected Motor Signal Output
OFF (Open) : Motor No. 1
ON (Closed) : Motor No. 2
Output shows the selected motor No.
11 Vcc
Internal Power Source
For Analog Signals
Output +10DC Power source for VR 1and VR 2.
12 Motor_㸇 Motor Current Monitor Output 0-10V DC
1.0A/V
Output shows the Motor current consumption.
Output Voltage is proportional to the Motor Current
consumption.
13 GND Internal Ground Output Internal GND This GND to be used for Analog Output Circuits.
14 START Rotate Command Signal Input OFF (Open) : Stop
ON (Closed) : Rotation Start and Stops Motor Rotation.
15 UD_IN Pulse Speed Change
UP/DOWN Signal Input
OFF (Open) : Speed Down
ON (Closed) : Speed Up
Determines speed up or speed down. (parameter
)
16 −Not used −− −
17 SEL0Speed Change Point
Select Signal "0"Input OFF (Open)
ON (Closed)
Select 4Motor Speeds by using SEL0and SEL1. (Refer
to table 4.) (
Refer to paramete for the setting of Speed
Point U1- U2.)
18 COM_2
External Power Source
for External Output
Input 0 V or + 24 V DC Power Source to be used for External Output Signals.
19 PULSE Rotating Pulse Output 1 Pulse / Rotation
1revolution of the motor generates one pulse.
Duty 50%.
20 WARNING Warning Signal Output
OFF (Open) : Normal Operation
ON (Closed) : Warning
Shows a Warning has Occurred. The Warning Code is shown on
the Digital Speed Indicator 㽴.
21 COIN Speed Achievement
Signal Output
OFF (Open) :
Set Speed not achieved
ON (Closed) :
Set Speed achieved
Shows that the Motor has achieved more than 90% of the
set Speed. (parameter )
22 VR2Motor No.2Speed
Control Signal Input Motor No. 2Speed
Control Signal
Sets rotating speed of motor No. 2. 10,000min-1/V.
(Based on 80,000min-1Max.)
23 VR1Motor No.1Speed
Control Signal Input Motor No. 1Speed
Control Signal
Sets rotating speed of motor No.1. 10,000min-1/V.
(Based on 80,000min-1Max.)
24 LOAD Torque Load Monitor Output 0-10V DC
20%/V
Shows that the torque being applied to the motor.
20%/ V 100%(rating)/5V
25 SPEED_V
Rotating Speed Monitor
Voltage
Output 10 , 000 min-1/V Voltage Output is proportional to the Motor Speed
Table 3
Speed Point SEL1(Pin No.5) SEL0(Pin No.17)
U1OFF (Open) OFF (Open)
U2OFF (Open) ON (Closed)
U3ON (Closed) OFF (Open)
U4ON (Closed) ON (Closed)
Table 4. Speed Point can be set with parameter setting

19
㩷ԭ Input/Output Diagram
1 : By setting parameter , EMG-IN Signal can be used.
2 : By setting parameter , Motor Speed Change is possible by Pulse Signals
.
3 : By setting parameter , Motor Speed Change is possible by SEL0 and SEL1.
Input Signal
There are 8command Input Signals : Rotation Command, Rotation Direction, Error Release, Speed Up or
Down Signal, Speed Command Pulse Signal, Motor Selection Signal, Set Speeds for Motor No. 1/ Motor No. 2.
㩷Ԯ㩷
㩷Ԯ 㪄㪈
Input/Output Signal
Variable Register
5K
Variable Register
5K
Connector A ֈ
Input/Output
(D-SUB 25)
COM_1
(+24V or 0V)
START
DIR_IN
RESET
MT_SEL
SEL0
SEL1
UD_IN
CNT_IN
Connector B ։
Input/Output
(D-SUB 15)
EMG-IN+
EMG-IN-
1
14
2
4
9
17
5
15 2
3
3
2
11
22
23
13
11
91
+10VDC
VR2
VR1
GND
RUN
DIR_OUT
ERR
SEL_MT
WARNING
COIN
PULSE
COM_2
(0V or +24V)
MOTOR_1
LOAD
SPEED_V
MT_CNA
MT_CNB
AUTO+
AUTO-
PWON+
PWON-
SAFE-1A
SAFE-1B
SAFE-2A
SAFE-2B
SAFETY RELAY CONTACT
6
7
8
10
20
21
19
18
12
24
25
13
2
10
5
13
6
14
3
11
4
12
GND
Fig. 32