Installation (General Specifications); Generic Specifications; Installation Location; Space In Enclosure - Mitsubishi Electric FX3U-128M series Hardware Manual

2.

Installation (general specifications)

As for installation of the input/output extension units/blocks, special
adapters and expansion boards, refer to FX Series User's Manual
3U
- Hardware Edition.
INSTALLATION
PRECAUTIONS
 Use the product within the generic environment specifications
described in section 2.1 of this manual.
Never use the product in areas with excessive dust, oily smoke,
conductive dusts, corrosive gas (salt air, Cl , H S, SO
2 2
NO ), flammable gas, vibration or impacts, or expose it to high
2
temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire,
malfunctions, deterioration or damage may occur.
 Do not touch the conductive parts of the product directly. Doing
so may cause device failure or malfunctions.
 Install the product securely using a DIN rail or mounting screws.
 Install the product on a flat surface.
If the mounting surface is rough, undue force will be applied to
the PC board, thereby causing nonconformities.
INSTALLATION
PRECAUTIONS
 When drilling screw holes or wiring, make sure cutting or wire
debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or
malfunctions.
 Be sure to remove the dust proof sheet from the PLC's
ventilation port when installation work is completed. Failure to
do so may cause fire, equipment failures or malfunctions.
 Connect the extension cables, peripheral device cables, input/
output cables and battery connecting cable securely to their
designated connectors.
Loose connections may cause malfunctions.
 Turn off the power to the PLC before attaching or detaching the
following devices.
Failure to do so may cause device failures or malfunctions.
- Peripheral devices, display modules, expansion boards and
special adapters
- Extension units/blocks and the FX Series terminal block
- Battery and memory cassette
Notes
 When a dust proof sheet is supplied with an unit, keep the
sheet applied to the ventilation slits during installation and
wiring work.
 To prevent temperature rise, do not install the PLC on a floor, a
ceiling or a vertical surface.
Install it horizontally on a wall as shown in section 2.2.
 Keep a space of 50 mm (1.97") or more between the unit main
body and another device or structure (part A). Install the unit as
far away as possible from high-voltage lines, high-voltage
devices and power equipment.
Failure to do so may cause fire, equipment failures or
malfunctions.
WIRING
PRECAUTIONS
 Cut off all phases of the power supply externally before
installation or wiring work in order to avoid damage to the
product or electric shock.
2.1

Generic specifications

Item Specification
0 to 55 C (32 to 131 F) when operating and -25 to
Ambient
75 C (-13 to 167 F) when stored
temperature
Ambient
5 to 95 %RH (no condensation) when operating
humidity
Fre- Accele-
quency ration
(Hz) (m/s 2 )
When 10 to 57 -
Vibration
installed
or
2
resistance
57 to
on DIN
4.9
*
( 1)
150
rail
10 to 57 -
When
installed
57 to
9.8
directly
150
Shock
147 m/s 2 Acceleration, Action time: 11 ms, 3 times by
resistance
half-sine pulse in each direction X, Y, and Z
*
( 1)
By noise simulator at noise voltage of 1,000 Vp-p,
Noise
noise width of 1 s, rise time of 1 ns and period of 30
resistance
to 100 Hz
1.5 kV AC for one
Dielectric
minute
withstand
* 500 V AC for one
voltage ( 2)
Between each terminals and
minute
ground terminal
Insulation
5 M or higher by
resistance
500 V DC insulation
*
( 2)
resistance tester
Class D grounding (grounding resistance: 100  or
less) <Common grounding with a heavy electrical
Grounding
*
system is not allowed.> ( 3)
Working Free from corrosive or flammable gas and excessive
atmosphere conductive dusts
Working
*
<2000 m ( 4)
altitude
Installation
Inside a control panel ( * 5 )
location
Over
 or less
voltage
category
Pollution
2 or less
degree
*
( 1) The criterion is shown in IEC61131-2.
( * 2) Dielectric withstand voltage and insulation resistance are
shown in the following table.
Terminal
 Main units, Input/output extension units/blocks
Between power supply terminal
Half
(AC power) and ground
amplitude
terminal
(mm)
Sweep Count
Between power supply terminal
0.035
for X, Y, Z: 10
(DC power) and ground
times terminal
- (80 min in
Between 24 V DC service
each
power supply connected to
direction)
0.075
input terminal (24 V DC) and
ground terminal
-
Between input terminal (100 V
AC) and ground terminal
Between output terminal (relay)
and ground terminal
Between output terminal
(transistor) and ground terminal
Between output terminal (triac)
and ground terminal
 Expansion boards, Special adapters,
Special function units/blocks
Between terminal of expansion
board and ground terminal
Between terminal of special
adapter and ground terminal
Special function unit/block
For dielectric with stand voltage test and insulation resistance
test of each product, refer to the following manual.
Refer to FX
Series User's Manual - Hardware Edition.
3U
*
( 3) For common grounding, refer to section 3.3.
( * 4) The PLC cannot be used at a pressure higher than the
atmospheric pressure to avoid damage.
*
( 5) The programmable controller is assumed to be installed in an
environment equivalent to indoor.
2.2

Installation location

Install the PLC in an environment conforming to the generic
specifications (section 2.1), installation precautions and notes.
For more details, refer to FX
Dielectric Insulation
strength resistance Edition.
Installation location in enclosure
1.5 kV AC for
one minute
500 V AC for
one minute
500 V AC for
one minute 5 M or higher by
500 V DC insulation
resistance tester
1.5 kV AC for
one minute
1.5 kV AC for
one minute
500 V AC for

Space in enclosure

one minute
Extension devices can be connected on the left and right sides of the
main unit of the PLC.
1.5 kV AC for
one minute If you intend to add extension devices in the future, keep necessary
spaces on the left and right sides.
Configuration without extension cable
Not allowed Not allowed A
5 M or higher by
FX
3U
500 V AC for
500 V DC insulation A
1 min Series
resistance tester
main
Each manual
unit
A
A
Configuration in 2 stages with extension cable
A
A
Another equipment
2.2.1 Affixing the dust proof sheet
The dust proof sheet should be affixed to the ventilation port before
beginning the installation and wiring work.
For the affixing procedure, refer to the instructions on the
Be sure to remove the dust proof sheet when the installation and
wiring work is completed.
Series User's Manual - Hardware
3U
A
≥ 50 mm (1.97")
A
A
FX Series
3U
main unit
A Extension
cable
Input/output ·FX 0N -65EC
·FX 0N -30EC
powered
A
extension
Another
unit
equipment
A
A ≥ 50 mm (1.97")
dust proof sheet.