Mitsubishi M80 series User Manual

M800S/M80/E80 Series Connection and Setup Manual
37 Appx.4: EMC Installation Guidelines
586
IB-1501269-J
(2) Example of surge absorber installation
An example of installing the surge absorber in the machine control panel is shown below.
A short-circuit fault will occur in the surge absorber if a surge exceeding the tolerance is applied. Thus, install a
circuit protection breaker in the stage before the surge absorber. Note that almost no current flows to the surge
absorber during normal use, so a breaker installed as the circuit protection for another device can be used for the
surge absorber.
Surge absorber installation
CAUTION
1. The wires from the surge absorber should be connected without extensions.
2. If the surge absorber cannot be installed just with the enclosed wires, keep the wiring length of A to 2m or less.
If the wires are long, the surge absorber's performance may drop and inhibit protection of the devices in the
panel.
3. Surge absorber to be selected varies depending on input power voltage.
4. Do not insert the surge absorber in the place with a lot of harmonic components.
A
MC
Circuit
protector
NC unit
Control panel
(relay panel,
etc.)
Other device
(panel power
supply, etc.)
Other device
(panel power
supply, etc.)
Panel earth
leakage
breaker
Input
power
Circuit
protector
AC reactor
Transformer
Grounding
Grounding plate
Factory power
Contactor
Circuit
protector
Power supply
unit
and
drive unit
Surge absorber
(Protection across phases/
Protection across each phase’s grounding)

Mitsubishi M80 series Specifications

General

Type	CNC Control Unit
Power Supply	24V DC
Interpolation	Linear, circular, helical
Fieldbus	CC-Link
Operating Temperature	0 to 45°C
Interface	USB, RS-232
Processor	RISC processor
Ethernet	Yes (100BASE-TX/10BASE-T)