Mitsubishi Electric MDS-B-SPJ2 Series User manual

CNC
SPECIFICATION MANUAL
BNP-B2164A(ENG)
AC SPINDLE
MDS-B-SPJ2 Series

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 When a dangerous situation may occur if handling is mistaken leading to fatal or
major injuries.
CAUTION 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.
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.
Conditions
Environment 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
(with no dew condensation)
80%RH or less
(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

(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
break output signals.
COM
(24VDC)
Servo amplifier
RA
Control output signal
(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
①The 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.
②When 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
①To prevent electric shocks, always connect the spindle amplifier protective earth (PE) terminal
(terminal with mark) to the protective earth (PE) on the control panel.
②When connecting the earthing wire to the protective earth (PE) terminal, do not tighten the wire
terminals together. Always connect one wire to one terminal.
(4) Wiring
①Always 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 PE terminal
Solderless terminal
Insulation tube
Wire

②Connect 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
①Use a no-fuse breaker and magnetic contactor that comply with the EN/IEC Standards
described in section 6-2-1.
②The 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
③When 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
5.2.2 Signal 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
5.4.1 Connection example when controlling the electromagnetic switch
with an external sequence circuit .................................................................... 5 - 11
5.4.2 Connection example when controlling the electromagnetic switch
with the MDS-B-SPJ2...................................................................................... 5 - 12
5.4.3 Connection 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
5.6.1 Selection 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