Chapter 5 Temperature Measurement Module AH04PT/AH08PTG 2. Pull up the clip. 3. The terminal block is removed. 5.1.9 Wiring Precautions In order to make the functions of a temperature measurement module perfect and ensure the reliability of a system at the same time, external wiring which prevents noise is necessary. Before installing cables, users need to follow the precautions below. (1) To prevent a surge and induction, an AC cable and input signal cables which are connected to AH04PT-5A must be separate cables. (2) A cable must not be installed near a main circuit, a high-voltage cable, or a cable connected to a load which is not a PLC.
Besides, a cable must not be bound to a main circuit, a high-voltage cable, or a cable connected to a load which is not a PLC. Otherwise, effects that noise, induction, and a surge have will increase. (3) Please connect a shielded cable and a hermetically sealed cable with the ground separately. (4) Terminals with insulation sleeves can not be arranged as a terminal block. It is recommended that the terminals be covered with insulation tubes. 5-15