Mitsubishi Electric C70 User guide

Introduction
This manual is the setup manual required to use the C70.
This manual is prepared on the assumption that your machine is provided with all of the C70 functions.
Confirm the functions available for your NC before proceeding to operation by referring to the specification issued
by the machine tool builder.
Notes on Reading This Manual
(1) This manual explains general parameters as viewed from the NC.
For information about each machine tool, refer to manuals issued from the machine tool builder.
If the descriptions relating to "restrictions" and "allowable conditions" conflict between this manual and the
machine tool builder's instruction manual, the later has priority over the former.
(2) This manual is intended to contain as much descriptions as possible even about special operations.
The operations to which no reference is made in this manual should be considered impossible.
If the descriptions relating to the "restrictions" and "allowable conditions" conflict between this manual
and the machine tool builder's instruction manual, the latter has priority over the former.
The operations to which no reference is made in this manual should be considered "impossible".
This manual is complied on the assumption that your machine is provided with all optional
functions. Confirm the functions available for your machine before proceeding to operation by referring to
the specification issued by the machine tool builder.
In some NC system versions‚ there may be cases that different pictures appear on the screen‚ the machine
operates in a different way or some function is not activated.
CAUTION

Precautions for Safety
Always read the specifications issued by the machine tool builder, this manual, related manuals and attached
documents before installation, operation, programming, maintenance or inspection to ensure correct use.
Understand this numerical controller, safety items and cautions before using the unit.
This manual ranks the safety precautions into "DANGER", "WARNING" and "CAUTION".
Note that even items ranked as " CAUTION", may lead to major results depending on the situation. In any case,
important information that must always be observed is described.
The following signs indicate prohibition and compulsory.
The meaning of each pictorial sign is as follows.
When the user may be subject to imminent fatalities or major injuries if handling is
mistaken.
When the user may be subject to fatalities or major injuries if handling is mistaken.
When the user may be subject to injuries or when physical damage may occur 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
DANGER
WARNING
CAUTION

Mitsubishi CNC is designed and manufactured solely for applications to machine tools to be used for industrial
purposes.
Do not use this product in any applications other than those specified above, especially those which are
substantially influential on the public interest or which are expected to have significant influence on human lives or
properties.
Not applicable in this manual.
1. Items related to operation
If the operation start position is set in a block which is in the middle of the program and the program is
started, the program before the set block is not executed. Please confirm that G and F modal and
coordinate values are appropriate. If there are coordinate system shift commands or M, S, T and B
commands before the block set as the start position, carry out the required commands using the MDI, etc.
If the program is run from the set block without carrying out these operations, there is a danger of
interference with the machine or of machine operation at an unexpected speed, which may result in
breakage of tools or machine tool or may cause damage to the operators.
Under the constant surface speed control (during G96 modal), if the axis targeted for the constant surface
speed control moves toward the spindle center, the spindle rotation speed will increase and may exceed
the allowable speed of the workpiece or chuck, etc. In this case, the workpiece, etc. may jump out during
machining, which may result in breakage of tools or machine tool or may cause damage to the operators.
For Safe Use
DANGER
WARNING

1. Items related to product and manual
If the descriptions relating to the "restrictions" and "allowable conditions" conflict between this manual
and the machine tool builder's instruction manual, the latter has priority over the former.
The operations to which no reference is made in this manual should be considered impossible.
This manual is complied on the assumption that your machine is provided with all optional functions.
Confirm the functions available for your machine before proceeding to operation by referring to the
specification issued by the machine tool builder.
In some NC system versions‚ there may be cases that different pictures appear on the screen‚ the machine
operates in a different way on some function is not activated.
2. Items related to faults and abnormalities
If the battery low alarm is output, save the machining programs, tool data and parameters to an input/
output device, and then replace the battery. If the BATTERY alarm occurs, the machining programs, tool
data and parameters may be damaged. After replacing the battery, reload each data item.
3. Items related to connection
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
When connecting to a personal computer and a unit with the RS-232/USB interface, an electric shock or a
unit failure may occur.
Operate these correctly according to the manual of a unit and a personal computer.
Observe the following cautions when a personal computer in an AC power supply is used.
(1) For a personal computer that uses a 3-pin power plug or power plug with a ground lead type, make sure to use
a plug socket including a ground input electrode or ground the earth lead, respectively.
And, ensure to ground a personal computer and a unit. (Ground resistance: 100Ωor less)
(2) For a personal computer that uses a 2-pin power plug without ground lead, make sure to connect the unit to
the personal computer according to the following procedures.
And, it is recommended to supply the same power supply line to a personal computer and the unit.
(a) Pull out the power plug of the personal computer from the AC outlet.
(b) Confirm that the power plug of the personal computer has been pulled out from the AC outlet, and
connect RS-232/USB cables, the extension cable or the bus connection cable of a GOT.
(c) Insert the power plug of the personal computer into the AC outlet.
4. Items related to setup
Always set the stored stroke limit. Setting no limits could result in collision with the machine end.
5. Items related to servo/spindle parameters
Do not make remarkable adjustments or changes of the parameters as the operation may became unstable.
In the explanation on bits, set all bits not used, including blank bits, to "0".
[Continued on next page]
CAUTION

[Continued]
6. Items related to maintenance
Periodically back up the programs, tool data and parameters to avoid potential data loss. Also, back up
those data before maintenance and inspections.
Do not short-circuit, charge, overheat, incinerate or disassemble the battery.
Do not replace parts or devices while the power is ON.
Collect and dispose of the spent batteries and the backlights for LCD according to the local laws.
CAUTION

Disposal
(Note) This symbol mark is for EU countries only.
This symbol mark is according to the directive 2006/66/EC Article 20 Information for end-
users and Annex II.
Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and
components which can be recycled and/or reused.
This symbol means that batteries and accumulators, at their end-of-life, should be disposed of
separately from your household waste.
If a chemical symbol is printed beneath the symbol shown above, this chemical symbol means that the
battery or accumulator contains a heavy metal at a certain concentration. This will be indicated as
follows:
Hg: mercury (0,0005%), Cd: cadmium (0,002%), Pb: lead (0,004%)
In the European Union there are separate collection systems for used batteries and accumulators.
Please, dispose of batteries and accumulators correctly at your local community waste collection/
recycling centre.
Please, help us to conserve the environment we live in!

Trademarks
MELDAS, MELSEC, EZSocket, EZMotion, iQ Platform, MELSOFT, GOT, CC-Link, CC-Link/LT and CC-Link
IE are either trademarks or registered trademarks of Mitsubishi Electric Corporation in Japan and/or other
countries.
Ethernet is a registered trademark of Xerox Corporation in the United States and/or other countries.
Microsoft® and Windows® are either trademarks or registered trademarks of Microsoft Corporation in the
United States and/or other countries.
CompactFlash and CF are either trademarks or registered trademarks of SanDisk Corporation in the United
States and/or other countries.
Other company and product names that appear in this manual are trademarks or registered trademarks of the
respective companies.