Mitsubishi Electric M70V Series Instruction manual

Introduction
This manual covers the items required for installing and connecting the MITSUBISHI CNC M70V Series. Read this
manual thoroughly and understand the product's functions and performance before starting to use.
This manual is written on the assumption that all optional functions are added, but the actually delivered device may
not have all functions.
The unit names, cable names and various specifications are subject to change without notice. Please confirm these
before placing an order.
This manual notes a reference chapter as "Chapter: Section: Paragraph".
(Example) For "1.3.1 List of Units":
"System Configuration: List of Configuration: List of Units"
("1.3.1 List of Units" included in "1.3 List of Configuration" of "1 System Configuration")
CAUTION
For items described as "Restrictions" or "Usable State" in this manual, the instruction manual issued by
the machine tool builder takes precedence over this manual.
Items that are not described in this manual must be interpreted as "not possible".
This manual is written on the assumption that all optional functions are added. Confirm the specifications
issued by the machine tool builder before starting to use.
Refer to the Instruction Manual issued by each machine tool builder for details on each machine tool.
Some screens and functions may differ depending on each NC system (or version), and some functions
may not be possible. Please confirm the specifications before starting to use.
The numerical control unit is configured of the control unit, display unit, operation board (keyboard unit, operation
panel I/O unit), servo drive unit, spindle drive unit, power supply unit + driver, servomotor, spindle motor, etc.
In this manual, the following items are generically called "controller".
- Control unit
- Display unit
- Operation board (keyboard unit, operation panel I/O unit)
- Numerical control unit peripheral devices (input/output unit, safety unit)
In this manual, the following items are generically called "drive unit".
- Servo drive unit
- Spindle drive unit
- Power supply unit + driver
In this manual, the following items are generically called "motor".
- Servo motor
- Spindle motor

Refer to the following documents.
M700V/M70V/E70 Series PLC Interface Manual .... IB-1500920
MDS-D2/DH2 Series Specifications Manual .... IB-1501124
MDS-D2/DH2 Series Instruction Manual .... IB-1501127
MDS-DM2 Series Specifications Manual .... IB-1501136
MDS-DM2 Series Instruction Manual .... IB-1501139
MDS-DJ Series Specifications Manual .... IB-1501130
MDS-DJ Series Instruction Manual .... IB-1501133
Safety Handbook (Original Instructions) .... IB-1501025

Precautions for Safety
Always read this manual and enclosed documents before installation, operation, maintenance and inspection to
ensure correct usage. Thoroughly understand the basics, safety information and precautions of the devices before
using.
This manual classifies the safety precautions into "DANGER", "WARNING" and "CAUTION".
Note that the items under " CAUTION" could lead to serious consequences as well depending on the situation.
All the items are important and must always be observed.
The following sings indicate prohibition and compulsory.
The meaning of each pictorial sing is as follows.
DANGER
When the user could be subject to imminent fatalities or serious injuries if handling is mistaken.
WARNING
When the user could be subject to fatalities or serious injuries if handling is mistaken.
CAUTION
When the user could be subject to injuries or the property could be damaged if handling is mistaken.
This sign indicates prohibited behavior (must not do).
For example, indicates "Keep fire away".
This sign indicated a thing that is pompously (must do).
For example, indicates "it must be grounded".
CAUTION
CAUTION
rotated object
CAUTION
HOT
Danger
Electric shock risk
Danger
explosive
Prohibited
Disassembly is
prohibited
KEEP FIRE AWAY General instruction
Earth ground

Mitsubishi CNC is designed and manufactured solely for applications to machine tools.
Do not use this product in any applications other than those specified as above, especially those which are
substantially influential on the public interest or which are expected to have significant influence on human lives or
properties.
We will review the acceptability of the abovementioned applications, if the customer agrees not to require a specific
quality for a specific application. Please contact us for consultation.
1. Items related to prevention of electric shocks
2. Items related to prevention of fire
For Safe Use
WARNING
Do not open or remove the front cover while the power is ON or during operation. The high voltage
terminals and charged sections will be exposed, and this could result in electric shocks.
Do not remove the front cover even when the power is OFF, except for the wiring works or periodic
inspections. The inside of the controller and drive unit are charged, and this could result in electric shocks.
Always wait at least 15 minutes after turning the power OFF. Then, check the voltage with a tester, etc.,
before wiring works, inspections or connecting with peripheral devices. Failure to observe this could result
in electric shocks.
Earth ground the controller, drive unit and motor according to the local laws. (In Japan, ground the 200V
Series input products with Class C or higher protective grounding and the 400V Series input with Class D
or higher protective grounding.)
All wiring works, maintenance and inspections must be carried out by a qualified technician. Failure to
observe this could result in electric shocks. Contact your nearby Service Center or Service Station for
replacing parts and servicing.
Wire the controller, drive unit and motor after installation. Failure to observe this could result in electric
shocks.
Do not operate the switches with wet hands. Failure to observe this could result in electric shocks.
Do not damage, apply excessive stress, place heavy things on or sandwich the cables. Failure to observe
this could result in electric shocks.
Insulate the power lead using a fixed terminal block. Failure to observe this could result in electric shocks.
CAUTION
Install the controller, drive unit, motor and regenerative resistor on non-combustible material. Installation
directly on or near combustible materials could result in fires.
If any malfunction in the unit is observed, shut off the power at the unit’s power supply side. Continuous
flow of large current could result in fires.
Install an appropriate no fuse breaker (NFB) and contactor (MC) on the power input section of the drive unit
and configure the sequence that shuts the power off upon drive unit’s emergency stop or alarm.
When a breaker is shared for multiple power supply units, the breaker may not function upon short-circuit
failure in a small capacity unit. Do not share a breaker for multiple units as this is dangerous.
Incorrect wiring and connections could cause the devices to damage or burn.

3. Items related to prevention of bodily injury or property damage
DANGER
When transporting or installing a built-in IPM spindle or linear servomotor, be careful so that your hand or
property will not be trapped in the motors or other metal objects. Also keep the devices with low magnetic
tolerance away from the product.
CAUTION
Do not apply voltages to the connectors or terminals other than voltages indicated in the connection
manual for the controller or specifications manual for the drive unit. Failure to observe this could cause
bursting, damage, etc.
Incorrect connections could cause the devices to rupture or damage, etc. Always connect the cables to the
indicated connectors or terminals.
Incorrect polarity (+ -) could cause the devices to rupture or damage, etc.
Persons wearing medical devices, such as pacemakers, must stay away from this unit. The
electromagnetic waves could adversely affect the medical devices.
Fins on the rear of the unit, regenerative resistor and motor, etc., will be hot during operation and for a while
after the power has been turned OFF. Do not touch or place the parts and cables, etc. close to these
sections. Failure to observe this could result in burns.
Do not enter the machine’s movable range during automatic operation. Keep your hands, feet or face
away from the spindle during rotation.

4. General precautions
Always follow the precautions below. Incorrect handling could result in faults, injuries or electric shocks, etc.
(1) Transportation and installation
CAUTION
Correctly transport the products according to the mass.
Use motor’s suspension bolts to transport the motor itself. Do not use it to transport the motor after
installation onto the machine.
Do not stack the products exceeding the indicated limit.
Do not hold the cables, shaft or detector when transporting the motor.
Do not transport the controller or drive unit by suspending or holding the connected wires or cables.
Do not hold the front cover when transporting the unit, or the front cover could come off, causing the unit
to drop.
Install on a non-combustible place where the unit’s or motor’s mass can be withstood according to the
instruction manual.
The motor does not have a complete water-proof (oil-proof) structure. Do not allow oil or water to contact
or enter the motor. Prevent the cutting chips from being accumulated on the motor as they easily soak up
oil.
When installing the motor facing upwards, take measures on the machine side so that gear oil, etc., will not
enter the motor shaft.
Do not remove the detector from the motor. (The detector installation screw is treated with sealing.)
Do not allow foreign matters, especially, conductive foreign matters such as screws or metal chips, or
combustible foreign matters such as oil, to enter the controller, drive unit or motor. Failure to observe this
could result in rupture or damage.
Do not get on the product or place heavy objects on it.
Provide prescribed distance between the controller/drive unit and inner surface of the control panel/other
devices.
Do not install or operate the controller, drive unit or motor that is damaged or has missing parts.
Take care not to cut hands, etc. with the heat radiating fins or metal edges.
Do not block the intake/outtake ports of the motor with the cooling fan.
Install the controller’s display section and operation board section on the spot where cutting oil will not
reach.
The controller, drive unit and motor are precision devices, so do not drop or apply thumping vibration and
strong impacts on them.
Hard disk unit is a precision device, so do not drop or apply strong impacts on it.
Store and use the units according to the environment conditions indicated in each specifications manual.
When disinfectants or insecticides must be used to treat wood packaging materials, always use methods
other than fumigation (for example, apply heat treatment at the minimum wood core temperature of 56 °C
for a minimum duration of 30 minutes (ISPM No. 15 (2009))).
If products such as units are directly fumigated or packed with fumigated wooden materials, halogen
substances (including fluorine, chlorine, bromine and iodine) contained in fumes may contribute to the
erosion of the capacitors.
When exporting the products, make sure to comply with the laws and regulations of each country.
Do not use the products in conjunction with any components that contain halogenated flame retardants
(bromine, etc). Failure to observe this may cause the erosion of the capacitors.
Securely fix the motor to the machine. The motor could come off during operation if insecurely fixed.

CAUTION
Always install the motor with reduction gear in the designated direction. Failure to observe this could result
in oil leaks.
Always install a cover, etc., over the shaft so that the rotary section of the motor cannot be touched during
motor rotation.
When installing a coupling to the servomotor shaft end, do not apply impacts by hammering, etc. The
detector could be damaged.
Use a flexible coupling when connecting with a ball screw, etc., and keep the shaft core deviation smaller
than the tolerable radial load of the shaft.
Do not use a rigid coupling as an excessive bending load will be applied on the shaft and could cause the
shaft to break.
Do not apply a load exceeding the tolerable level onto the motor shaft. The shaft or bearing could be
damaged.
Before using this product after a long period of storage, please contact the Mitsubishi Service Station or
Service Center.
Following the UN recommendations, battery units and batteries should be transported based on the
international regulations such as those determined by International Civil Aviation Organization (ICAO),
International Air Transport Association (IATA), International Maritime Organization (IMO) and U.S.
Department of Transportation (DOT).

(2) Items related to wiring
CAUTION
Correctly wire this product. Failure to observe this could result in motor runaway, etc.
Do not install a phase advancing capacitor, surge absorber or radio noise filter on the output side of the
drive unit.
Correctly connect the output side (terminal U, V, W). The motor will not run properly if incorrectly
connected.
Always install an AC reactor per each power supply unit.
Always install an appropriate breaker per each power supply unit. A breaker cannot be shared for multiple
power supply units.
Do not directly connect a commercial power supply to the motor. Failure to observe this could result in
faults.
When using an inductive load such as relays, always connect a diode in parallel to the load as a noise
countermeasure.
When using a capacitive load such as a lamp, always connect a protective resistor serially to the load to
suppress rush currents.
Do not mistake the direction of the surge absorption diode to be installed on the DC relay for the control
output signal. If mistaken, the signal will not be output due to fault in the drive unit, and consequently the
protective circuit, such as emergency stop, could be disabled.
Do not connect or disconnect the cables between units while the power is ON.
Do not connect or disconnect the PCBs while the power is ON.
Do not pull the cables when connecting/disconnecting them.
Securely tighten the cable connector fixing screw or fixing mechanism. The motor could come off during
operation if insecurely fixed.
Always treat the shield cables indicated in the Connection Manual with grounding measures such as cable
clamps.
Separate the signal wire from the drive line or power line when wiring.
Use wires and cables whose wire diameter, heat resistance level and bending capacity are compatible with
the system.
Ground the device according to the requirements of the country where the device is to be used.
Wire the heat radiating fins and wires so that they do not contact.
When using the RS-232C device as a peripheral device, caution must be paid for connector connection/
disconnection. Always use a double-OFF type AC power supply switch on the device side, and connect/
disconnect the connector with the AC power supply on the device side OFF.
RA RA
COM COM
Control
output
signal
Drive unit
Control
output
signal
Drive unit
(24VDC) (24VDC)
RS-232C
NC unit Device Switch AC socket

(3) Adjustments
(4) Usage
CAUTION
Check and adjust programs and each parameter before starting operation. Failure to observe this could
result in unpredictable operations depending on the machine.
Do not make drastic adjustments or changes as the operation could become unstable.
CAUTION
Install an external emergency stop circuit so that the operation can be stopped and the power turns OFF
immediately when unforeseen situation occurs. A contactor, etc., is required in addition to the shutoff
function mounted in the controller.
Turn OFF the power immediately if any smoke, abnormal noise or odor is generated from the controller,
drive unit or motor.
Only a qualified technician may disassemble or repair this product.
Do not alter.
Use a noise filter, etc. to reduce the effect of electromagnetic disturbances in the case where
electromagnetic disturbances could adversely affect the electronic devices used near the drive unit.
Use the drive unit, motor and each regenerative resistor with the designated combination. Failure to
observe this could result in fires or faults.
The combination of the motor and drive unit that can be used is determined. Be sure to check the models
of motor and drive unit before test operation.
The brakes (electromagnetic brakes) mounted in the servomotor are used for the purpose of holding, and
must not be used for normal braking. Also, do not run the motor with the motor brake applied. Motor brake
is used for the purpose of holding.
For the system running via a timing belt, install a brake on the machine side so that safety can be ensured.
Be sure to confirm SERVO OFF (or READY OFF) when applying the electromagnetic brake. Also, be sure
to confirm SERVO ON prior to releasing the brake.
When using the DC OFF type electromagnetic brake, be sure to install a surge absorber on the brake
terminal.
Do not connect or disconnect the cannon plug while the electromagnetic brake’s power is ON. The
cannon plug pins could be damaged by sparks.
After changing programs/parameters, or after maintenance/inspection, always carry out a test operation
before starting actual operation.
Use the power that are complied with the power specification conditions (input voltage, input frequency,
tolerable instantaneous power failure time) indicated in each specifications manual.
When making detector cables, do not mistake connection. Failure to observe this could result in
malfunction, runaway or fire.