Mitsubishi Electric M70V Series Connection Manual Download

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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.