Mitsubishi Electric C Series Handling And Maintenance page 32

• The size of wiring MDU is shown as below.
• Tighten the terminal screws with following tightening torque.
Tightening torque
Tool minus head screw driver
Wire strip length
• The finish of the wire
In case of single core wire, it can be connected directly to the terminals.
In case of twisted core wire, strip the insulation and twist copper wires. Then it can be connected directly to the terminals. Takes
care the short circuit by wiring. The solder plating is not allowed.
Following compression pin terminal is recommended.
Manufacturer : Phenix contact
Cross section of wiring 0.25mm
Cross section of wiring 0.5mm
Terminal for 2 wires 0.5mm
Please contact to the manufacturer as for further details.
However the length of pin terminal (compression) is
longer than 7mm, cut the metal pin as follows.
[ Note of MDU with electric energy accumulated pulse output option ]
• Output line shall be kept the distance longer than 10cm from the heavy current circuit.
And maximum wiring distance is less than and including 100m.
• In the case of pulse output connects to the AC, please pay attention to malfunction of receiver by leakage current by earth
capacitance or mutual capacitance between wires.
[ Note of MDU with CC-Link option ]
• Make sure to connect DA, DB, DG and SLD terminals on MDU to CC-Link line with shielded twisted pair cable.
When the lived wires are connected to CC-Link terminals, by mistake, it may occur electric shock or fire.
Because CC-Link terminals use only low voltage signals.
• The shielded twisted pair cable of CC-Link line shall be kept the distance longer than 10cm from the heavy current circuit.
However, it shall be kept the distance longer than 30cm from the heavy current circuit when parallel installation with the
heavy current circuit is required.
• The hole cutout of the panel board cannot be done with CC-Link for the breaker-mounting of MDU installation. If the hole
cutout is done to the panel board, the space in the CC-Link cable wiring makes an useless hole space.
Installation in the panel board (EMC directive)
• Following EMC tests are required with IEC60947-2,
(i) Radiated radio frequency emission.
(ii) Radiated radio frequency electromagnetic field immunity.
• MDU shall be installed in the panel board. It effects not only for safe against electric shock but also to interrupt noise
emission from MDU is confirmed in accordance with following conditions.
Condition 1: (Power distribution board, control panel board)
(i) Power distribution board or control panel board shall be made of conductive materials.
(ii) Electrical contact impedance of screwed area between top/bottom plates and enclosure shall be as low as possible
with paint removing.
(iii) Internal plate of power distribution board or control panel board shall be also paint removed to reduce the electrical
contact impedance around screwed area.
(iv) Power distribution board or control panel board shall be grounded to the earth with a large cable.
CAUTION
In case of single connection
In case of double connection
0.5 - 0.6 N·m
Bit size Thickness 0.6mm Width 3.5mm
7mm
2
:AI 0.25-6 YE (Catalog NO. 3200179)
2 :AI 0.5-6 WH(Catalog NO.3200687)
× 2:AI-TWIN 2 × 0.5-8 WH(Catalog NO.3200933)
2
CAUTION
CAUTION
Single core Twisted core
2
0.45-1.2mm 0.14-1.5mm
2
0.45-0.8mm 0.14-75mm
Pin terminal
Metal pin
Cut
7mm
2
2
30