UDC920BE 3BHE034863R0001 Logic input module

l Terminal Blocks To wire between I/O Module and field devices, install a pressure clamp terminal or KS cable interface adapter on the I/O Module. When a pressure clamp terminal is used, the I/O Module can be wired directly with the field devices. When the KS cable interface adapter is used, the I/O Module is wired with the field devices via terminal boards. Two types of pressure clamp terminal blocks are available: single and dual-redundant types. Using the dual-redundant type, dual-redundant I/O Modules can be configured on the terminal block. In addition, a MIL connector cable can be connected directly to an I/O Module without installing a terminal block to the I/O Module. The MIL connector cable are furnished by the customer. A cable connector cover (ACCC01) is provided in order to prevent the MIL connector cable from coming loose. The table entitled “Combinations of I/O Modules and Terminal Blocks” lists connections among I/O Modules, terminal blocks and connector cables.

Limitations of Installation for AAT145

To keep the reference junction compensation accuracy, make sure to meet the following conditions. The terminal board should not be affected by radiated heat. For details of the reference junction compensation accuracy, refer to “Analog I/O Modules” (GS 33K50F60-50E). Specifications for terminal board only Install any heat sources in the above of a terminal board or terminal board wiring. Provide a heat shield when installing heat sources in the side or below of a terminal board.

Installation in Cabinet 

To install a heat source in the same cabinet, install it in a position that is higher than the terminal board and the terminal board wiring. If the heat source must be installed besides the terminal board or in a position that is lower than it, install a heat shield plate. Note: The reference junction compensation accuracy is for when the temperature environment is in stability condition. If the temperature environment is varied, accuracy error may occur until the temperature becomes stability condition.To keep the reference junction compensation accuracy, make sure to meet the following conditions. The pressure clamp terminal should not be affected by radiated heat.To make I/O Modules dual-redundant, install the I/O Modules in slots numbered IO1-IO2, IO3-IO4, IO5-IO6 and/or IO7-IO8, as shown in the figure below.