Yaskawa MP940 - Manual (Page 15)

xvi
„ Wiring
Caution
• Always connect a power supply that meets the specifications.
Connecting an inappropriate power supply may cause fires.
• Wiring must be performed by qualified personnel.
Incorrect wiring may cause fires, product failure, or malfunctions.
• Do not accidentally leave foreign matter such as wire chips in the Module when wiring.
This may cause fires, failures, and malfunctions.
Manditory
• Always ground the FG terminal to a ground resistance 100 Ω or less.
Failure to ground the MP940 may result in electrical shocks or malfunctions.
Select, separate, and lay external cables correctly.
• Consider the following items when selecting the I/O signal lines (external cables) to connect the
MP940 to external devices.
• Mechanical strength
• Noise interference
• Wiring distance
• Signal voltage, etc.
• Separate the I/O signal lines from the power lines both inside and outside the control panel to
reduce the influence of noise from the power lines.
If the I/O signal lines and power lines are not separated properly, malfunctioning may result.
鉄板製のセパレータ
ディジタル
入出力信号
ケーブル
一般制御回路
のケーブル
動力回路の
ケーブル
外部配線の分離例
Example of Separated External Cables
Steel separator
Power
circuit
cables
General
control
circuit
cables
Digital I/O
signal
cables
Mandatory