Mitsubishi Electric MDU-BN Instruction Manual page 16

[Wiring for products with electric energy pulse output]
● The 114 and 113 pulse output terminals are included with MDUs with electric energy pulse output.
● The pulse output line forms a small-signal circuit. Install it at least 10 cm away from strong circuits. The wiring length is determined by various
conditions such as the anti-noise performance of the pulse receiver. However, the wiring should not exceed 100 m.
● If using A/C for the pulse output power supply, make sure that the pulse receiver does not erroneously operate due to leak current caused by
conduit capacitance.
[Wiring for products with CC-Link communication]
● CC-Link communication terminals DA, DB, DG, and SLD are included with CC-Link communication MDUs.
Connect these to the CC-Link transmission line. Never connect non-transmission line terminals (such as the L1 and L2 control power supply
terminals).
The CC-Link transmission line forms a small-signal circuit. Connecting it improperly is extremely dangerous.
● The CC-Link transmission line forms a small-signal circuit. Install it at least 10 cm away from strong circuits.
However, install it at least 30 cm away if parallel for a long distance.
● If installing a MDU main unit with CC-Link communication, a hole cannot be made in the face board. Making a hole in the face board will leave
a gap in the CC-Link communication cable wiring.
[Wiring for products with MODBUS communication]
● MODBUS communication terminals FG, SLD, 485+, 485-, Ter are included with MODBUS communication MDUs.
Connect these to the MODBUS transmission line. Never connect non-transmission line terminals (such as the L1 and L2 control power supply
terminals).
The MODBUS transmission line forms a small-signal circuit. Connecting it improperly is extremely dangerous.
● The MODBUS transmission line forms a small-signal circuit. Install it at least 10 cm away from strong circuits.
However, install it at least 30 cm away if parallel for a long distance.
● If installing a MDU main unit with MODBUS communication, a hole cannot be made in the face board. Making a hole in the face board will leave
a gap in the MODBUS communication cable wiring.
Caution
Danger
Caution
Danger
Caution
15