mitsubishi MDS-B-SPJ2 Specification Manual

CNC

AC SPINDLE

MDS-B-SPJ2 Series

SPECIFICATION MANUAL

BNP-B2164A(ENG)

Thank you for purchasing the Mitsubishi AC spindle drive unit. This manual describes the handling and precautions for using this unit. Incorrect handling may lead to unforeseen accidents, so always read this manual thoroughly to ensure correct usage.

Make sure that this manual is delivered to the end user. Always store this manual for future reference.

All specifications of the MDS-B-SPJ2 Series are listed in this manual. However, each CNC does not always apply to the specifications, so confirm the CNC specifications before using the unit.

Precautions for reading this Specifications and Maintenance Manual

(1)This manual gives a general explanation for the spindle system. Refer to the manuals issued by the machine maker for the specifications of each machine tool.

The "restrictions" and "available functions" described in the manuals issued by the machine maker has precedence to those in this manual.

(2)This manual describes as many special operations as possible, but it should be interpreted that items not mentioned in this manual cannot be performed.

Precautions for Safety

Please read this manual and enclosed documents before starting installation, operation, maintenance or inspection to ensure correct usage. Thoroughly understand the device, safety information and precautions before starting operation. After reading, always store this manual where it can be accessed easily.

The safety precautions are ranked as "DANGER" and "CAUTION" in this instruction manual.

!DANGER

CAUTION

When a dangerous situation may occur if handling is mistaken leading to fatal or major injuries.

When a dangerous situation may occur if handling is mistaken leading to medium or minor injuries, or physical damage.

Note that some items described as CAUTION may lead to serious results depending on the situation. In any case, important information that must be observed is described.

Thank you for purchasing the Mitsubishi AC spindle drive.

The "Prohibited" and "Mandatory" displays are explained as follows.

: This indicates a prohibited action (an action that must not be done). For example, the

display for "Fire Prohibited" is .

: This indicates a mandatory action (an action that must be done). For example, the display for grounding is .

After reading, always store this manual where it can be accessed easily.

Precautions that do not reach the level of material damage and precautions for separate functions, etc., are ranked as "Note", "Notice" and "Memo".

Note : This indicates situations in which mishandling will result in failure of this product, but not material damage.

Notice : This indicates situations in which a separate function is entered by parameter change, etc., and other usage methods are required.

Memo : This indicates a point important for correct usage.

For Safe Use

1. Electric shock prevention

! DANGER

Always turn the power OFF and wait 10 minutes or more until the charge lamp has turned OFF before wiring or carrying out inspections. Using a tester, etc., always confirm that there is no voltage between the P-N terminals before starting wiring or inspections. Failure to observe this could lead to electric shocks.

Ground the spindle amplifier and spindle motor with Class 3 grounding or higher. Wiring and inspections must always be carried out by a qualified technician.

Always install the spindle amplifier and spindle motor before wiring. Failure to observe this could lead to electric shocks.

Do not touch the switches with wet hands. Failure to observe this could lead to electric shocks.

Do not damage, apply forcible stress, place heavy items or engage the cable. Failure to observe this could lead to electric shocks.

2. Fire prevention

CAUTION

Install the spindle amplifier, spindle motor and regenerative resistor on noncombustible material. Direct installation on combustible material or near combustible materials could lead to fires.

Shut off the power on the spindle amplifier side if a fault occurs in the spindle amplifier. Fires could be caused if a large current continues to flow.

Shut off the power with an error signal when using the regenerative resistor. The regenerative resistor could abnormally overheat and cause a fire due to a fault in the regenerative transistor, etc.

3. Injury prevention

CAUTION

Do not apply a voltage other than that specified in the Specifications or Instruction Manual on each terminal. Failure to observe this item could lead to ruptures or damage, etc.

Do not mistake the terminal connections. Failure to observe this item could lead to ruptures or damage, etc.

Do not mistake the DC voltage polarity (+, –). Failure to observe this item could lead to ruptures or damage, etc.

Do not touch the spindle amplifier fins, regenerative resistor or spindle motor, etc., while the power is turned ON or immediately after turning the power OFF. Some parts are heated to high temperatures, and touching these could lead to burns.

4. Various precautions

Observe the following precautions. Incorrect handling of the unit could lead to faults, injuries and electric shocks, etc.

(1) Transportation and installation

CAUTION

Correctly transport the product according to its weight.

Do not stack the spindle motor or spindle amplifiers above the tolerable number. Do not hold the cables, axis or detector when transporting the spindle motor.

Do not hold the front cover when transporting the spindle amplifier. The unit could drop. Follow the Instruction Manual and install the unit in a place where the weight can be borne. Do not get on top of or place heavy objects on the product.

Always observe the installation direction.

Secure the specified space between the spindle amplifier and inside wall of the control panel, and between other devices.

Do not install or operate a spindle amplifier or spindle motor that is damaged or missing parts.

Do not let conductive objects such as screws or metal chips, etc., or combustible materials such as oil enter the spindle amplifier or spindle motor.

The spindle amplifier and spindle motor are precision devices, so do not drop them or apply strong impacts to them.

Store and use the units under the following environment conditions.

	Environment	Conditions
		Spindle amplifier		Spindle motor
	Ambient temperature	0°C to +55°C (with no freezing)	0°C to +40°C (with no freezing)
	Ambient humidity	90% RH or less	80%RH or less
		(with no dew condensation)	(with no dew condensation)
	Storage temperature	–20°C to +65°C (with no freezing)	–15°C to +70°C (with no freezing)
	Storage humidity	90%RH or less (with no dew condensation)
	Atmosphere	Indoors (Where unit is not subject to direct sunlight)
		With no corrosive gas, combustible gas, oil mist or dust
	Altitude	1000m or less above sea level
	Vibration	5.9 m/s2 (0.6G) or less	SJ-P, SJ-PF		14.7 m/s2 (1.5G) or less

Securely fix the spindle motor to the machine. The spindle motor could come off during operation if insecurely fixed.

Always install a cover, etc., over the shaft so that the rotary sections of the spindle motor cannot be touched during spindle motor rotation.

When using a coupling connection to the spindle motor shaft, do not apply an impact by hammering, etc. The detector could be damaged.

Do not apply a load exceeding the tolerable load onto the spindle motor shaft. The shaft could be damaged.

Before using this product after a long period of storage, please contact the Mitsubishi Service Station or Service Center.

Control output signal

Servo amplifier

COM (24VDC)

(2) Wiring

CAUTION

Correctly and securely perform the wiring. Failure to do so could lead to runaway of the spindle motor.

Do not install a phase advancing capacity, surge absorber or radio noise filter (option FR-BIF) on the output side of the spindle amplifier.

Correctly connect the output side (terminals U, V, W). Failure to do so could lead to abnormal operation of the spindle motor.

Do not directly connect a commercial power supply to the spindle motor. Doing so could lead to faults.

Do not mistake the orientation of the surge absorption diode to be installed on

the DC relay for contactor and motor RA break output signals.

(3) Trial operation and adjustment

CAUTION

Check each parameter before starting operation. Failure to do so could lead to unforeseen operation of the machine.

Do not make remarkable adjustments and changes as the operation could become unstable.

(4) Usage methods

CAUTION

Install an external emergency stop circuit so that the operation can be stopped immediately and the power can be shut off.

Never disassemble or repair the unit.

The operation will suddenly restart if a reset (RST) is carried out while an operation start signal (ST) is being input. Therefore, always confirm that the operation signal is OFF before resetting (RST). Failure to observe this could result in accidents.

Never make modifications.

Reduce the influence of electromagnetic interference by using a noise filter, etc. The electronic devices used near the spindle amplifier could be affected by magnetic noise.

Use the spindle motor and spindle amplifier with the designated combination. Install a stop device for ensuring safety on the machine side.

(5) Troubleshooting

CAUTION

If a dangerous situation is predicted during a stop or product fault, take prevention measures by installing an external brake mechanism to hold the tool.

When an alarm occurs, always eliminate the cause of the alarm and ensure safe operation before resetting.

Never go near the machine after restoring the power after a failure, as the machine could start suddenly. (Design the machine so that personal safety can be ensured even if the machine starts suddenly.)

(6) Maintenance, inspection and part replacement

CAUTION

The capacity of the electrolytic capacitor will drop due to deterioration. To prevent secondary damage due to faults, replace the capacitor every ten years when using under a general environment. Consult the Service Station or Service Center for replacements.

(7) Disposal

CAUTION

Treat this unit as general industrial waste.

(8) General precautions

CAUTION

The drawings given in this Specification Manual show the covers, safety partitions, etc., removed to provide a clearer explanation. Always return the covers and safety partitions to their specified locations before operating this product, and operate following the Instruction Manual.

Compliance to European EC Directives

1. European EC Directives

The European EC Directives were issued to unify Standards within the EU Community and to smooth the distribution of products of which the safety is guaranteed. In the EU Community, the attachment of a CE mark (CE marking) to the product being sold is mandatory to indicate that the basic safety conditions of the Machine Directives (issued Jan. 1995), EMC Directives (issued Jan. 1996) and the Low-voltage Directives (issued Jan. 1997) are satisfied. The machines and devices in which the servo and spindle are assembled are a target for CE marking.

The spindle is a component designed not to function as a single unit but to be used with a combination of machines and devices. Thus, it is not subject to the EMC Directives, and instead the machines and devices in which the spindle is assembled are targeted.

This spindle complies with the Standards related to the Low-voltage Directives in order to make CE marking of the assembled machines and devices easier. The EMC INSTALLATION GUIDELINES (BNP-B8582-45) which explain the spindle amplifier installation method and control panel manufacturing method, etc., has been prepared to make compliance to the EMC Directives easier. Contact Mitsubishi or your dealer for more information.

2. Cautions of compliance

Use the standard spindle amplifier and EN Standards compliance part for the spindle motor. In addition to the items described in this instruction manual, observe the items described below.

(1)Environment

The spindle amplifier must be used within an environment having a Pollution Class of 2 or more as stipulated in the IEC664. For this, install the spindle amplifier in a control panel having a structure (IP54) into which water, oil, carbon and dust cannot enter.

(2)Power supply

The spindle amplifier must be used with the overvoltage category II conditions stipulated in IEC664. For this, prepare a reinforced insulated transformer that is IEC or EN Standards complying at the power input section.

When supplying the interface power supply from an external source, use a 24 VDC power supply of which the input and output have been reinforced insulated.

(3)Installation

To prevent electric shocks, always connect the spindle amplifier protective earth (PE) terminal (terminal with mark) to the protective earth (PE) on the control panel.

When connecting the earthing wire to the protective earth (PE) terminal, do not tighten the wire terminals together. Always connect one wire to one terminal.

PE terminal

(4)Wiring

Always use solderless terminals with insulation tubes so that the wires connected to the spindle amplifier terminal block do not contact the neighboring terminals.

PE terminal

Solderless terminal

Insulation tube

Wire

Connect the SJ-P and SJ-PF Series spindle motor power lead to the spindle amplifier using a fixed terminal block. Do not connect the wires directly.

(5) Peripheral devices and options

Use a no-fuse breaker and magnetic contactor that comply with the EN/IEC Standards described in section 6-2-1.

The wires sizes must follow the conditions below. When using other conditions, follow Table 5 of EN60204 and the Appendix C.

•Ambient temperature: 40°C

•Sheath: PVC (polyvinyl chloride)

•Install on wall or open table tray

When using the EMC filter, the radio noise filter (FR-BIF) is not required.

(6)Spindle motor

Contact Mitsubishi for the outline dimensions, connector signal array and detector cable.

(7)Others

Refer to the EMC INSTALLATION GUIDELINES (BNP-B8582-45) for other EMC Directive measures related to the spindle amplifier.

Contents

1. Outline .........................................................................................................................		1 - 1
1.1	Features for MDS-B-SPJ2 Series .........................................................................	1 - 1
1.2	Precautions for use ................................................................................................	1 - 1
1.3	Type configuration .................................................................................................	1 - 2
1.4	Basic functions and option functions .....................................................................	1 - 3
1.5	Configuration .........................................................................................................	1 - 4
1.5.1 Basic configuration .........................................................................................		1 - 4
1.5.2 Encoder orientation (full closed) ....................................................................		1 - 8

2. Specifications ................................................................................................................			2 - 1
2.1	AC spindle motor and drive unit specifications .....................................................		2 - 1
2.2	Output characteristics ............................................................................................		2 - 3
2.3	Tolerable acceleration/deceleration frequency characteristics .............................		2 - 4
2.3.1 Frequency according to acceleration/deceleration time (tolerable duty cycle)			2 - 4
2.3.2 Frequency according to regenerative resistor (tolerable duty cycle) ............			2 - 4
2.3.3 Combination of regenerative resistor capacity and unit ................................			2 - 5
2.4	Outline dimension ..................................................................................................		2 - 6
2.4.1		Spindle drive unit ...........................................................................................	2 - 6
2.4.2		Spindle motor .................................................................................................	2 - 10
2.4.3		Regenerative resistor .....................................................................................	2 - 17

3. Functions .......................................................................................................................		3 - 1
3.1	Control input signals ..............................................................................................	3 - 1
3.2	Control output signals ............................................................................................	3 - 3
3.3	Meter output specifications ....................................................................................	3 - 6

4. Handling .........................................................................................................................		4 - 1
4.1	Explanation of unit parts ........................................................................................	4 - 1
4.2	Installation ..............................................................................................................	4 - 2
4.2.1 Spindle amplifier installation ............................................................................		4 - 2
4.3	Spindle drive unit heat radiation ............................................................................	4 - 4

5. Connections ...................................................................................................................		5 - 1
5.1	Machine-to-machine connection diagram .............................................................	5 - 1
5.2	Spindle amplifier connections ................................................................................	5 - 3
5.2.1 Main circuit terminal block and control circuit terminal block ..........................		5 - 3

5.2.2Signal names and applications of the main circuit terminal block and

	control circuit terminal block ............................................................................	5 - 5
5.2.3 Usage method of the control circuit terminal block (MDS-B-SPJ2-02 to 075)		5 - 6
5.3 Spindle motor and detector connection .................................................................		5 - 7
5.3.1	SJ-P0.2A/0.4A motor connection ....................................................................	5 - 7
5.3.2	SJ-P0.75A motor connection...........................................................................	5 - 7
5.3.3	SJ-P1.5A/2.2A/3.7A motor connection............................................................	5 - 8
5.3.4 SJ-PF Series motor connection (1.5/2.2/3.7kW).............................................		5 - 8

5.3.5	SJ-PF Series motor connection (5.5/7.5kW)...................................................	5 - 9
5.3.6	SJ-PF Series motor connection (11kW)..........................................................	5 - 10
5.4 Power supply connection ........................................................................................		5 - 11

5.4.1Connection example when controlling the electromagnetic switch

with an external sequence circuit ....................................................................

5 - 11

5.4.2Connection example when controlling the electromagnetic switch

with the MDS-B-SPJ2......................................................................................

5 - 12

5.4.3Connection example when controlling the electromagnetic switch

	with the MDS-B-CV/CR ...................................................................................	5 - 13
5.4.4 Output circuit of the electromagnetic switch control signal (MCON ).............		5 - 13
5.5	Regenerative resistor connection............................................................................	5 - 14
5.6	Relation to the main circuit ....................................................................................	5 - 15

5.6.1Selection of the main circuit wire, no-fuse breaker and electromagnetic

		contactor ..........................................................................................................	5 - 15
5.6.2		Input/output DIO relay......................................................................................	5 - 15
5.7	Control circuit cables and connectors .....................................................................		5 - 16
6. Status Display and Parameter Setting ..........................................................................			6 - 1
6.1	Status display with 7-segment LED ........................................................................		6 - 1
6.2	Spindle parameters .................................................................................................		6 - 2
6.3	SPINDLE SPECIFICATION PARAMETERS screen..............................................		6 - 16
6.4	SPINDLE MONITOR screen...................................................................................		6 - 17
6.5	D/A output specifications.........................................................................................		6 - 21
6.6	List of spindle protection functions and warning functions .....................................		6 - 26
7. Optional Specifications and Parts .................................................................................			7 - 1
7.1	Orient specifications (optional)................................................................................		7 - 1
7.1.1 4096 point orientation using encoder.............................................................			7 - 1
7.1.2 4096 point orientation using motor built-in encoder ......................................			7 - 4
7.1.3		Orientation operation .......................................................................................	7 - 5
7.2	Synchronous tap specifications (option) .................................................................		7 - 7
7.2.1 Closed method synchronous tap.....................................................................			7 - 7
7.2.2 Semi-closed method synchronous tap ............................................................			7 - 7
7.2.3		Synchronous tap operation..............................................................................	7 - 7
7.3	Single parts (optionally supplied parts) ...................................................................		7 - 8
7.3.1		Power step-down transformer .........................................................................	7 - 8
7.3.2 Grounding plate and cable clamp metal fittings ............................................			7 - 9
7.3.3		Noise filter ........................................................................................................	7 - 10
7.4	Other optional specifications ...................................................................................		7 - 11

8. Adjustment Procedure ....................................................................................................			8 - 1
8.1	Spindle amplifier initial setup...................................................................................		8 - 1
8.1.1		Rotary switch setting........................................................................................	8 - 1
8.1.2 LED display transition after the power is turned ON .......................................			8 - 2
8.2	Initial adjustment ....................................................................................................		8 - 3
8.2.1		Parameter confirmation ...................................................................................	8 - 3
8.3	Test operation..........................................................................................................		8 - 6
8.4	Acceleration/deceleration adjustment ...................................................................		8 - 7
8.5	Orientation adjustment ............................................................................................		8 - 9
8.5.1 Motor built-in encoder orientation adjustment preparation .............................			8 - 9

8.5.2 Encoder orientation adjustment preparation ...................................................		8 - 10
8.5.3	Orientation adjustment method .......................................................................	8 - 11
8.5.4	Servo rigidity adjustment .................................................................................	8 - 12
8.5.5 Delay/advance control and PI control..............................................................		8 - 12
8.5.6 Troubleshooting for orientation errors ...........................................................		8 - 13
8.6 Synchronous tap adjustment...................................................................................		8 - 15
8.6.1 Synchronous tap operation adjustment...........................................................		8 - 15
8.6.2 Troubleshooting for abnormal synchronous tap..............................................		8 - 18

9. Unit Replacement ............................................................................................................			9	- 1
9.1	Preparation for unit replacement ...........................................................................		9	- 1
9.2	Unit replacement method ........................................................................................		9	- 1
10. Daily Maintenance .........................................................................................................			10	- 1
10.1	Maintenance equipment..........................................................................................		10	- 1
10.2	Periodic inspections ................................................................................................		10	- 2
10.2.1		Control unit inspections ...................................................................................	10	- 2
10.2.2		Motor inspections.............................................................................................	10	- 3
10.2.3 Regenerative resistor unit inspection ...........................................................			10	- 3
11. Troubleshooting ............................................................................................................			11	- 1
11.1	Introduction..............................................................................................................		11	- 1
11.2	First step..................................................................................................................		11	- 1
11.3	Second step.............................................................................................................		11	- 3
11.4	Approach by each phenomenon .............................................................................		11	- 4
11.4.1		Details when alarms and warnings are displayed in the 7-segment LED ......	11	- 4

11.4.2 When alarms and warnings appear in the display ..........................................		11 - 21
Appendix 1 MDS-A/B-SP/SPJ2 Parameter Setting List (1/3) ........................................		A - 1
Appendix 2	Delivery specifications ................................................................................	A - 4
Appendix 3	Theoretical acceleration and deceleration times......................................	A - 7
Appendix 4	Unit conversion table...................................................................................	A - 8
Appendix 5	Test operation...............................................................................................	A - 9

Chapter 1 Outline

Contents

1. Outline		..................................................................................................................... .........	1 - 1
1.1	Features for MDS-B-SPJ2 Series .............................................................................		1 - 1
1.2	Precautions ...................................................................................................for use		1 - 1
1.3	Type ....................................................................................................configuration		1 - 2
1.4	Basic ........................................................................functions and option functions		1 - 3
1.5	Configuration .............................................................................................................		1 - 4
1.5.1 ............................................................................................		Basic configuration	1 - 4
1.5.2 .......................................................................		Encoder orientation (full closed)	1 - 8

1. Outline

1. Outline

1.1Features for MDS-B-SPJ2 Series

(1)The unit has been downsized and reduced in weight with the incorporation of a high speed, high integration LSI, high speed DSP and IGBT

(2)The speed response has been improved with the high speed DSP, improving the cutting capacity and improving the cutting precision during positioning control.

(3)A smooth operation and short time orientation time have been realized by incorporating the high speed orientation method that enables direct orientation from high speeds.

(4)All spindle parameters can be set from the NC side CRT screen making operation easier.

1.2Precautions for use

(1)The motor rated output is guaranteed at the drive unit rated input (200/220/230VAC). If the input voltage fluctuates and drops below this, the rated output may not be reached.

(2)A PWM controlled high harmonics chopper voltage is applied on the motor, so a high harmonic leakage current will flow during motor operation.

If a general purpose leakage breaker is used, it may malfunction due to the high harmonics. Always use a leakage breaker for inverter purposes.

(3)The above high harmonics leakage current will also flow in the grounding wire between the motor and controller. If this grounding wire is placed near the NC CRT screen, the CRT screen may malfunction due to the magnetic field of the leakage current. Keep the grounding wire and CRT screen as far away as possible.

(4)Noise could be a problem particularly to AM radio broadcasts due to the magnetic radio wave noise radiated from the motor and controller.

Keep radios as far away from the motor and controller as possible.

A filter for radio noise measures is prepared as an option, so use it as necessary.

1 − 1

1. Outline

1.3 Type configuration

● Spindle drive unit type
	MDS - B - SPJ2 -
				02
						Blank:
						In-panel installation type
						C : Intermediate panel
						installation type
Mitsubishi AC	spindle drive unit				Short time rated output
MDS-B-SPJ2 Series					capacity display

Symbol	Output capacity (kW)
02	0.2
04	0.4
075	0.75
15	1.5
22	2.2
37	3.7
55	5.5
75	7.5
110	11.0

●Spindle motor type

(1)SJ-P Series (self-cooling type)

		SJ - P			0.2		A
Mitsubishi AC spindle		motor
						Short time rated output
SJ-P Series						capacity display

(2) SJ-PF Series (fan cooling type)

Symbol	Output capacity (kW)
0.2	0.2
0.4	0.4
0.75	0.75
1.5	1.5
2.2	2.2
3.7	3.7

SJ - PF

2.2

-

01

Electric specifications

Mitsubishi AC spindle motor	Short time rated output
SJ-PF Series	capacity display

Symbol	Output capacity (kW)
2.2	2.2
3.7	3.7
5.5	5.5
7.5	7.5
11	11.0

1 − 2

1.Outline

1.4Basic functions and option functions

● Basic functions (High-speed serial communication interface input/output signals)

	Function	Details
	Emergency stop input	When the emergency stop signal turns OFF, the motor decelerates to a stop with
		regenerative braking, and after stopping the gate is shut off.
	Speed command input	The digital speed command is input from the control unit.
	Ready ON input	After ready ON is input, the motor can be run.
		When the signal is turned OFF, the motor will coast to stop.
	Forward run, reverse run	While this signal is ON, the motor will rotate in the counterclockwise direction (forward run)
		or clockwise direction (reverse run) looking from the motor shaft side. The operation will
	command input
		follow the speed command. The motor will decelerate to a stop when this signal turns OFF.
	Orientation command	This is the orientation start signal. When this signal turns ON, orientation will start
	input	regardless of the forward run/reverse run commands.
	Gear selection 1,2 input	The spindle gear step (4-step) for orientation or position control is selected.
	Torque limit 1, 2, 3 input	The motor is rotated with the output torque temporarily reduced.
		Seven types of torque limit values (parameter set) can be used.
	Indexing forward run,	This is the forward run (CCW) or reverse run (CW) indexing command input after
	reverse run command
		multi-point orientation. This is valid when the orientation start signal is ON.
	input
	Control mode selection	The spindle drive unit operation mode (speed control, position control) can be selected
	command 1, 2, 3, 4, 5
		directly with bit correspondence.
	input
	Zero speed output	This signal turns ON when the actual motor speed drops to below zero speed (parameter
		set).
	Speed reached output	This signal turns ON when the actual motor speed in respect to the commanded speed
		reaches ±15%.
	Speed detection output	This signal turns ON when the motor speed drops to below that set with parameters.
	Current detection output	This signal turns ON when the current value reaches 110% or more of the rated current.
	In motor forward run/	Whether the actual motor is running in forward or reverse is detected and a signal is
	reverse run output	output.
	Orientation output	This signal turns ON if the stop position is in the in-position (parameter set) range during
	complete	orientation. This signal turns OFF when not in the in-position range.
	Index positioning complete	This signal turns ON when indexing is completed.
	output
	In alarm output	This signal turns ON if an alarm occurs in the spindle drive unit. The alarm details are
		displayed with corresponding numbers on the unit and drive unit.
	Speed display output	The actual motor speed is displayed on the control unit screen.
	Load display output	The actual motor load (motor output) is displayed on the control unit screen with 100% as
		the short time rated output.
	Acceleration/deceleration	The time constant of the speed command used during acceleration/deceleration can be
		set with parameters. Note that this will differ from the actual operation time because of the
	time constant setting
		load GD.

●Option functions 1. When using motor built-in encoder (only gear ratio 1:1)

2.When using installed 1024p/rev encoder

	Function	Details
	Multi-point (4096 point)	Stopping from the high speed rotation to any of the 4096 points is possible directly.
	orientation
	Indexing function	After orientation stop, the motor can be stopped from either forward run or reverse run at
		any of the 4096 points.
	High-speed synchronous	Direct high-speed, high-precision tapping is possible without using a floating tap chuck.
	tapping
	Spindle speed display,	The encoder pulse data is output to the control unit via a high-speed serial cable, so the
	synchronous feed signal	spindle speed can be displayed and threading can be carried out.

1 − 3

1. Outline

1.5 Configuration

1.5.1 Basic configuration

<MDS-B-SPJ2-02 ~ MDS-B-SPJ2-075>

3-phase AC power supply

200V to 230V 50/60Hz

L1,L2,L3	Mitsubishi CNC
No-fuse breaker
	SH21 cable
(Note 1)	SH21 cable to the	Terminator
	next amplifier	MDS -A - TM
No-fuse breaker	MDS-B-SPJ2-02 075
AC reactor

			Electromagnetic switch
			Turn OFF the main circuit
			power when an alarm occurs.
	Main circuit power
	Electromagnetic switch		External electro-
			magnetic switch
			control output
			D/A output (2ch)
							Grounding
Control power
			Main circuit power L1	L2	L3
			Main circuit
			output	V	W
			U
			Control power
Spindle	Power regeneration
amplifier, etc.		Regenerative resistor
	type convertor unit
					D	C	L21 N
							L11
					Detector cable
							FCUAR052 R056
							(SJ-P Series)
					AC spindle motor

CAUTION

(Note 1)

Install an independent no-fuse breaker for the MDS-B-SPJ2 main circuit power. This is especially necessary when the circuit is shared with a large capacity convertor unit, where the no-fuse breaker may not operate at a main circuit short-circuit in a small capacity spindle amplifier (SPJ2) if the no-fuse breaker is also installed so that it is shared. If this happens a fire may result.

1 − 4

1. Outline

<MDS-B-SPJ2-15/22/37>

3-phase AC power supply

200V to 230V 50/60Hz

L1,L2,L3

No-fuse breaker

(Note 1)

No-fuse breaker

Mitsubishi CNC

SH21 cable

SH21 cable to the	Terminator
next amplifier	MDS-A-TM

MDS-B-SPJ2-15/22/37

	AC reactor
		Electromagnetic switch
		Turn OFF the main circuit
		power when an alarm occurs.
	Main circuit power
	Electromagnetic
	switch	External electro-
		magnetic switch
		control output
Control
power
		D/A output (2ch)
	Regenerative
	resistor
Spindle	Power regeneration	L11 L21		D	P	C N
amplifier, etc.		L1	L2	L3	U	VW
	type convertor unit

Grounding

Detector cable

FCUA-R052 R056 SJ-P Series

FCUA-R059 SJ-PF Series

AC spindle motor

1 − 5

1. Outline

<MDS-B-SPJ2-55/75>

3-phase AC power supply

200V to 230V 50/60Hz

L1,L2,L3

No-fuse breaker

AC reactor

Main circuit power

Control power

Regenerative resistor

Spindle

amplifier, etc. Power regeneration type convertor unit

Mitsubishi CNC

		SH21 cable
		SH21 cable to the	Terminator
	(Note 1)	next amplifier
			MDS -A - TM

No-fuse breaker

MDS-B-SPJ2-55/75

Electromagnetic switch Turn OFF the main circuit

power when an alarm occurs.

External electromagnetic switch control output

D/A output (2ch)

Main circuit power

L1

L2

L3

C

P

N

U

V

W

Grounding Control power

L11

L21

Detector cable

FCUA - R059 (SJ-PF Series)

AC spindle motor

1 − 6

1. Outline

<MDS-B-SPJ2-110/110C>

3-phase AC power supply

200V to 230V 50/60Hz

L1,L2,L3

No-fuse breaker

AC reactor

Main circuit power

Control power

Mitsubishi CNC

SH21 cable

(Note 1)

No-fuse breaker

Electromagnetic switch Turn OFF the main circuit

power when an alarm occurs.

External electromagnetic switch control output

D/A output (2ch)

	SH21 cable to	Terminator
	the next amplifier
		MDS-A-TM

MDS-B-SPJ2-110

Control power

	Regenerative resistor	L11
		Grounding
		L21
Spindle	L1 L2 L3	C P N U V W
amplifier, etc. Power regeneration type
	convertor unit	Detector cable
		FCUA-R059(SJ-PF Series
	Main circuit power
		AC spindle motor

1 − 7

1. Outline

1.5.2 Encoder orientation (full closed)

<MDS-B-SPJ2-15/22/37>

3-phase AC power supply

200V to 230V 50/60Hz

L1,L2,L3

No-fuse breaker

AC reactor

Main circuit power

Electromagnetic switch

Control power

Regenerative resistor

Spindle

amplifier, etc.Power regeneration type convertor unit

Mitsubishi CNC

SH21 cable

	SH21 cable to the	Terminator
(Note 1)	next amplifier	MDS-A-TM
No-fuse breaker	MDS-B-SPJ2-15/22/37

Electromagnetic switch Turn OFF the main circuit

power when an alarm occurs.

External electromagnetic switch control output

D/A output (2ch)	FCUA - R00 1	Grounding
	(Note 2)
Control power

L11 L21 D	P	C	N	Detector cable
L1 L2	L3	U	V W
				FCUA-R052 R056 (SJ-P Series)
				FCUA-R059 (SJ-PF Series)

Main circuit power

AC spindle motor

FCUAR050 R054

Encoder

(Note 2)

When orientation, etc., is carried out using an external encoder, a motor detector cable and encoder cable are connected using a forked cable from the connector (CN2).

Note that when the cable shield is not connected to the ground via the connector case, the shield should be securely connected to the ground using a cable clamp jig, etc., as shown in the drawing. If the shield is not connected to the ground, it may cause the motor to produce abnormal noises or the orientation position to deviate.

1 − 8

Chapter 2 Specifications

Contents

2. Specifications ................................................................................................................			2 - 1
2.1	AC spindle motor and drive unit specifications ......................................................		2 - 1
2.2	Output characteristics .............................................................................................		2 - 3
2.3	Tolerable acceleration/deceleration frequency characteristics ..............................		2 - 4
2.3.1 Frequency according to acceleration/deceleration time (tolerable duty cycle)			2 - 4
2.3.2 Frequency according to regenerative resistor (tolerable duty cycle) .............			2 - 4
2.3.3 Combination of regenerative resistor capacity and unit .................................			2 - 5
2.4	Outline dimension ...................................................................................................		2 - 6
2.4.1		Spindle drive unit ............................................................................................	2 - 6
2.4.2		Spindle motor ..................................................................................................	2 - 10
2.4.3		Regenerative resistor ......................................................................................	2 - 17

2. Specifications

2. Specifications

2.1AC spindle motor and drive unit specifications

	Motor series							SJ-P Series
Specifications			Spindle motor model		SJ-P0.2A	SJ-P0.4A		SJ-P0.75A		SJ-P1.5A		SJ-P2.2A		SJ-P3.7A
			Spindle drive unit		MDS-B-	MDS-B-		MDS-B-SPJ	MDS-B-SPJ			MDS-B-SPJ		MDS-B-SPJ
			model		SPJ2-02	SPJ2-04		2-075		2-15		2-22		2-37
	Continuous		Rated output	(kW)	0.1	0.15		0.3		0.55		1.1		1.5
	characteristics		Rated torque	(Nm)	0.64	0.96		1.91		3.5		7.0		9.55
	(Note 1)
				(kgcm)	6.5	9.8		19.5		35.7		71.4		97.4
	Short-time		Rated output	(kW)	0.2	0.4		0.75		1.5		2.2		3.7
	characteristics		Rated torque	(Nm)	1.27	2.55		4.77		9.55		14.0		23.5
	(10min)
				(kgcm)	13	26		48.7		97.4		143		240
	(Note 1)
	Rated speed			(r/min)			1500
	Max. speed			(r/min)		10000						8000
motor	Frame No.				A46F	B46F		A71F		B71F		A112F		B112F
	Max. torque			(Nm)	1.54	3.07		5.73		11.4		16.8		28.2
Spindle
				(kgcm)	15.6	31.4		58.5		117		171		288
	Max. current			(A)	2.5	5.0		6.5		11		14		23
	Power rate			(kW/sec)	2.8	3.0		4.0		5.8		7.5		9.1
	Moment of		J	(kgcm2)	1.5	3.0		9.0		21		65		100
	inertia		GD2	(kgcm2)	6.0	12		36		84		260		400
	Speed position encoder					Incremental encoder resolution 4096p/rev
	Accessories					Thermal protector and oil seal provided
	Structure					Fully enclosed self-cooling (IP54) Flange installation
	Ambient temperature							0°C to 40°C
	Weight			(kg)	4.5	6.5		10		20		25		35
			Voltage, frequency			3-phase 200V to 230VAC 50/60Hz
	Power supply		Tolerable voltage					170V to 253V		50/60Hz
			fluctuation
	(Note 2)		Tolerable frequency					Within ± 5%
			fluctuation
			Power facility capacity		0.5	1.0		2.0		3.0		4.0		7.0
	Control method				Sinusoidal PWM control, current control type vector control method
	Braking method					Regenerative control (resistance electrical-discharge)
unit	Speed control range							35 to 10000 (r/min)
	Tolerable load moment of inertia					10-times or less of motor moment of inertia
drive
	Controller connection specifications					HDLC high-speed serial bus connection
Spindle					Overcurrent shut off, overvoltage shut off, overload shut off (thermal relay),
	Protective functions				undervoltage protection, main circuit element overheat protection,
					regenerative resistor overheat protection, overspeed protection,
					excessive error protection, detector error protection
			Ambient temperature			0°C to 55°C (with no freezing)				Storage –20°C to 65°C
			Ambient humidity			90%RH (with no dew condensation)
	Environment		Atmosphere					No corrosive gases or dust
			Altitude					1000m or less
			Vibration					5.9m/S2 (0.6G) or less
	Outline dimensions H×W×D			(mm)	168×54×135	168 × 70 × 135					168 × 90 × 195
	Weight			(kg)	0.8		1.0				2.3

Note 1) The rated output is guaranteed at the rated input voltage (200 to 230VAC). If the input voltage fluctuates and drops below this value, the rated output may not be achieved.

Note 2) When using a voltage not within the above specifications, prepare a power supply transformer.

2 − 1

2. Specifications

Motor series						SJ-PF Series
	Spindle motor model			SJ-PF2.2-01	SJ-PF3.7-01	SJ-PF5.5-01	SJ-PF7.5-01	SJ-PF11-01
		In-panel		MDS-B-SPJ2-	MDS-B-SPJ2-3	MDS-B-SPJ2-5	MDS-B-SPJ2-7	MDS-B-SPJ2-1
		installation
	Spindle			22	7	5	5	10
Specifications		type
	drive	Intermediate
	unit
		panel						MDS-B-SPJ2-1
	model
		installation						10C
		type
Continuous	Rated output		(kW)	1.5	2.2	3.7	5.5	7.5
characteristics	Rated torque		(Nm)	9.55	14.0	23.5	35.0	47.8

	(Note 1)		(kgcm)	97.5	143	240		357	487
	Short-time	Rated output	(kW)	2.2 (15 min.)	3.7 (15 min.)	5.5 (30 min.)		7.5 (30 min.)	11.0 (30 min.)
	characteristics	Rated torque	(Nm)	14.0	23.5	35.0		47.8	70.0
	(10min)		(kgcm)	143	240	357		487	715
	(Note 1)
	Rated speed		(r/min)			1500
motor	Max. speed		(r/min)	10000			8000		6000
	Frame No.			A90	B90	D90		A112	B112
Spindle	Max. torque		(Nm)	16.8	28.2	42.0		57.4	84.1
	Max. current		(A)	17	28	37		53	64
			(kgcm)	171	283	428		584	858
	Power rate		(kW/sec)	14	23	40		52	76
	Moment of	J	(kgcm2)	65	85	137		235	298
	inertia	GD2	(kgcm2)	260	340	550		940	1190
	Speed position encoder				Incremental encoder resolution 4096p/rev
	Accessories				Thermal protector provided
	Structure				Fully enclosed self-cooling (IP54) flange installation
	Ambient temperature					0°C to 40°C
	Weight		(kg)	25	30	49		60	70
		Voltage, frequency			3-phase 200V to 230VAC			50/60Hz
	Power supply	Tolerable voltage				170V to 253V	50/60Hz
		fluctuation
	(Note 2)	Tolerable frequency				Within ± 5%
		fluctuation
		Power facility capacity		4.0	7.0	9.0		12.0	17.0
	Control method			Sinusoidal PWM control, current control type vector control method
	Braking method				Regenerative control (resistance electrical-discharge)
	Speed control range					35 to 8000 (r/min)
	Tolerable load moment of inertia				10-times or less of motor moment of inertia
	Controller connection specifications				HDLC high-speed serial bus connection
unit				Overcurrent shut off, overvoltage shut off, overload shut off (thermal relay),
				undervoltage protection, main circuit element overheat protection,
drive	Protective functions
				regenerative resistor overheat protection, overspeed protection,
Spindle				excessive error protection, detector error protection
		Ambient temperature			0°C to 55°C (with no freezing)		Storage –20°C to 65°C
		Ambient humidity			90%RH (with no dew condensation)
	Environment	Atmosphere			No corrosive gases or dust
		Altitude				1000m or less
		Vibration				5.9m/S2 (0.6G) or less
	Outline	In-panel installation		168 × 90 × 195		250 × 130 × 200			380×180×200
	dimensions	type
	H×W×D	Intermediate panel							350×180×200
	(mm)	installation type
	Weight		(kg)		2.3		4.5		6.5

Note 1) The rated output is guaranteed at the rated input voltage (200 to 230VAC). If the input voltage fluctuates and drops below this value, the rated output may not be achieved.

Note 2) When using a voltage not within the above specifications, prepare a power supply transformer.

2 − 2

2. Specifications

2.2Output characteristics

●	SJ-P Series
		SJ-P0.2A			SJ-P0.4A	(kW)		SJ-P0.75A
(kW)			(kW)
						Output
Output			Output
								Short-time rating
		Short-time rating			Short-time rating	0.75
			0.4
0.2
0.1		Continuous rating			Continuous rating			Continuous rating
			0.15			0.3
0						0
			0
	1500	10000		1500	10000			10000
							1500
		Speed (r/min)		Speed (r/min)			Speed (r/min)

(kW)		SJ-P1.5A	(kW)		SJ-P2.2A		(kW)	SJ-P3.7A
Output			Output		Short-time rating	Output		Short-time rating
						3.7
			2.2
1.5		Short-time rating
		Continuous rating	1.1		Continuous rating	1.5		Continuous rating
0.55
0	1500	10000	0	1500	8000	0		1500	8000
		Speed (r/min)		Speed (r/min)				Speed (r/min)

●SJ-PF Series

													SJ-PF2.2-01																							(kW)														SJ-PF3.7-01
	(kW)
																																				Output
Output
																																											15 minute rating
2.2									15 minute rating																											3.7
																																												Continuous											rating
11..35									Continuous rating																											2.2
																																				1.5
0.9
0																																				0
	1500										6000															10000										1500											6000																		10000

Speed (r/min)	Speed (r/min)

(kW)		SJ-PF5.5-01	(kW)	SJ-PF7.5-01			(kW)		SJ-PF11-01
Output	30 minute rating		Output	30 minute rating			Output	30 minute rating
			7.5
5.5							11
4.0	Continuous			Continuous				Continuous
							8.3
3.7	rating		5.5	rating			7.55.6	rating
2.5			4.0
0	1500	6000 8000	0	1500	6000	8000	0		4500	6000
								1500
	Speed (r/min)			Speed (r/min)				Speed (r/min)

2 − 3

2.Specifications

2.3Tolerable acceleration/deceleration frequency characteristics

The tolerable acceleration/deceleration frequency characteristics of the controller fluctuate according to the motor speed and motor shaft conversion GD2, so calculate the tolerable frequency with the following items. The smaller of the frequency determined by the acceleration/deceleration time according to the controller output (refer to appendix) and the frequency determined by the regenerative resistor becomes the operable frequency (tolerable duty cycle).

2.3.1Frequency according to acceleration/deceleration time (tolerable duty cycle)

When machining with a frequent spindle acceleration/deceleration, the average output value per cycle must not exceed the continuous rated output.

Continuous rated output ≥ 1 cycle average output value

(1) How to obtain the average output

Average output			PAV =		P12	• t1 + P22			• t2 + P32 • t3
								T
Motor speed
	Accel-					Decel-
	eration					eration
	P1						P3			P1
Motor output			Cutting
				P2

P1, P3 : Output (kW) during acceleration/ deceleration

P2	30 minute rated output × 1.2
	: Output (kW) during cutting
t1, t3	: Acceleration/deceleration time

t1	t2	t3
	1 cycle T

2.3.2Frequency according to regenerative resistor (tolerable duty cycle)

The energy during motor deceleration (during regeneration) is consumed by the regenerative resistor. This heating value of this regenerative resistor changes according to the motor type, speed being used, load inertia and continuous repetition cycle (duty cycle).

Use a regenerative resistor with an adequate capacity according to the load and continuous cycle time.

(1)How to obtain the regenerative resistor capacity

Obtain the rotation energy with the following equation, and select so that the value does not exceed the capacity of the regenerative resistor.

Regenerative resistor capacity ≥ Motor rotation energy

Refer to section 2.3.3 for the regenerative resistor capacity.

2 − 4

2. Specifications

The spindle motor rotation energy W is :

	n		( GDM2 + GDL2 )		2	π •
W =		×	4	× [		N	] 2
	120					60

		GDM2
		GDL2
		N
		n
	n =	60
		T

:	Motor rotor inertia	(kg•m2)
:	Motor shaft conversion load inertia	(kg•m2)
:	Motor speed	(r/min)
:	Acceleration/deceleration frequency	(times/min.)
	T : Tolerable duty cycle	(sec)

2.3.3Combination of regenerative resistor capacity and unit

The combinations of the regenerative resistor capacity (tolerable heating value) and the unit are shown below.

	Tolerable	Resistance		Combination with spindle drive unit
Model	heating	value				(MDS-B-SPJ2-**)
	value	(ohm)	-02	-04	-075	-15	-22	-37	-55	-75	-110
No regenerative	—	—
resistor
FCUA-RB04	60W	200
FCUA-RB075	80W	100
FCUA-RB15	120W	60
FCUA-RB22	155W	40
FCUA-RB37	185W	25
FCUA-RB75/2	340W	30
1 unit used
FCUA-RB55	340W	20
FCUA-RB75/2	680W	15
Two units in series
R-UNIT1	700W	15
R-UNIT2	700W	15
R-UNIT3	2100W	15
R-UNIT4	2100W	10
R-UNIT5	3100W	10

If repeated frequency operation exceeding the regenerative resistor capacity is carried out, and over-regeneration alarm will occur and the spindle drive unit will stop.

The over-regeneration alarm detects the cumulative value of the current that flows within a set time to the regenerative resistor. The alarm can be released just by turning the power ON again, but do not resume operation immediately.

If operation is resumed before the regenerative resistor cools, the regenerative resistor could burn out and fires could occur. Always resume operation after the regenerative resistor cools.

2 − 5

2. Specifications

2.4Outline dimension

2.4.1 Spindle drive unit

• MDS-B-SPJ2-02

[unit: mm]

	Wiring space	135
	(75 or more)

		50	Heat radiation
	6	φ6 installation hole
			space
	6		(40 or more)

168

156

6

6 3-M4×0.7	Wiring space
6	(40 or more)

4

• MDS-B-SPJ2-04/075

6

168

156

6

70

φ6 installation hole

22

	6	6
		6
22
		3-M4×0.7

Wiring space

[unit: mm]

(75 or more)

135

Heat radiation space

(40 or more)

Wiring space (40 or more)

6

2 − 6

2. Specifications

• MDS-B-SPJ2-15/22/37			Wiring space		[unit: mm]
		90	(75 or more)	195
		φ6 installation hole		Heat radiation space (40 or more)
	6	6	6
	6
168	156
	6
	6	6		Wiring space (40 or more)
	6	6
				12-M4×0.7 screws	3-M4×0.7 screws

• MDS-B-SPJ2-55/75

130	2-φ6 installation

	7.5	6	6	hole
				7.5
250	235
	7.5
		6	6
		6

Wiring space

6

[unit: mm]

(70 or more)

200

Heat radiation space (40 or more)

Wiring space (40 or more)

6

2 − 7

2. Specifications

• MDS-B-SPJ2-110
		180
15	7.5	150	6
		130

380

350

365

Wiring space	[unit: mm]
(70 or more)	200

Heat radiation space (40 or more)

Wiring space

138

62

(40 or more)

9-M4×0.7 screws

3-M4×0.7 screws

6

2 − 8

2. Specifications

• MDS-B-SPJ2-110C
				Wiring space		[unit: mm]
			2-φ6 installation	(70 or more)	200
		180
	7.5	6	hole		Heat radiation space
			6
					(40 or more)
350	335
	7.5	6	6	Wiring space	138	62
			6
		6		(40 or more)
					9-M4×0.7 screws
					3-M4×0.7 screws
< Embedded installation			Installation hole dimensions >
			4-M5 screws
					6

8

335	319

166

168

2 − 9