Chapter 9 Installation And Wiring; Before Using The I/O Module With Diagnostic Functions; Wiring - Mitsubishi Electric MELSEC iQ-RX40NC6B Application User's Manual

9
INSTALLATION AND WIRING
This chapter describes the installation and wiring of the I/O module with diagnostic functions.
9.1
Before Using the I/O Module with Diagnostic
Functions
Precautions for using the output module with diagnostic functions
■Momentarily turning on of output at establishment of the safety connection
Output may momentarily turn on before establishment of the safety connection of the output module with diagnostic functions
(before the S MODE LED of the output module with diagnostic functions turns on). For the output module with diagnostic
functions, use a load or device with the response speed of 1ms or longer.
9.2

Wiring

This section describes the wiring of the I/O module with diagnostic functions.
Precautions
• For terminal block wiring, be sure to use a solderless terminal whose thickness is 0.8mm or less. Connect up to two
solderless terminals to one terminal section.
• A solderless terminal with an insulation sleeve cannot be used in a terminal block. To prevent a short-circuit when a screw
in a terminal block becomes loose, we recommend putting a mark tube or insulation tube on the wire connection section of
a solderless terminal.
• Use the following for a wire connecting to a terminal block.
Applicable wire size
0.3 to 0.75 (22 to 18 AWG) (stranded wire)
Outside diameter: 2.8mm or less
• For a solderless terminal, use R1.25-3, which is UL listed.
• Tighten screws in a terminal block within the following torque ranges.
Screw location
Terminal block screw (M3 screw)
Terminal block mounting screw (M3.5 screw)
*1 When 0.75 or bigger cables are used, the horizontal overhang will become so large that cables interfere with the terminal blocks or
connectors of adjacent modules, eventually giving stress to the modules. Therefore, use 0.75 or smaller cables. When the type of
terminal block is changed to a spring clamp terminal block (Q6TE-18SN), 0.3 to 1.5 (22 to 16 AWG) cables can be used. To use
cables bigger than the above, manage by using FA goods manufactured by Mitsubishi Electric Engineering Co., Ltd. (such as FA-
TB161AC+ FA-CBL20D).
• The output module with diagnostic functions only monitors the output status of the module's output terminals. To monitor
the output status of connected devices, implement another monitoring function in the system.
Terminal block wiring, installation, and disconnection procedures
For details on the wiring, installation, and disconnection procedures, refer to the following:
 MELSEC iQ-R Module Configuration Manual
9 INSTALLATION AND WIRING
142

9.1 Before Using the I/O Module with Diagnostic Functions

Material
Copper wire
*1
Temperature rating
75 or more
Tightening torque range
0.42 to 0.58Nm
0.66 to 0.89Nm