5 WIRING
5.2 External Wiring
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5
To use a connector/terminal block converter module
A connector/terminal block converter module for MELSEC-Q series temperature input module can be used with a temperature
input module. This section shows the examples of external wiring when a connector/terminal block converter module is used.
Thermocouple input module
Use the connector/terminal block converter module for the Q68TD-G-H02(H01). Wire the modules as shown below.
*1 Connect the cold junction compensation resistor (RTD) when With cold junction compensation (0) is set to 'Cold junction compensation
with/without setting' (Un\G298).
*2 Ground the shields.
*3 The RTD- and RTDG are connected in the connector/terminal block converter module. Therefore the connection of RTD- and RTDG at
the terminal block is not required.
Product name Model Remarks Contact
Connector/terminal block converter module FA-LTB40TDG Your local Mitsubishi Electric sales office or
representative
Dedicated cable FA-CBL05Q68TDG Cable length: 0.5m
FA-CBL10Q68TDG Cable length: 1.0m
FA-CBL20Q68TDG Cable length: 2.0m
FA-CBL30Q68TDG Cable length: 3.0m
RTD+
RTD-
RTDG
RTD
Dedicated cable
Shield
*2
Shield
*2
Connector/terminal block
converter module
Compensation
lead wire
Shield
*2
CH1+ (terminal 1)
CH1- (terminal 2)
RTD+ (terminal 38)
RTD- (terminal 40)
*1
Module internal wiring
*3
Thermocouple
input module
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