1756-IF8 OF8ControlLogix 电压/电流输入输出模块
Identify the Module Components
You received the following components with your order:
· 1756-IF8 module
· Removable Terminal Block (RTB) door label
If you did not receive these components, contact your Rockwell
Automation sales office.
This module mounts in a ControlLogixä chassis and uses a
separately-ordered RTB or a Bulletin 1492 Interface Module (IFM) to
connect all field-side wiring.
This module uses one of the following RTBs:
· 1756-TBCH 36 position Cage clamp RTB
· 1756-TBS6H 36 position Spring clamp RTB
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1756-OF8 module
Removable Terminal Block (RTB) door label
If you did not receive these components, contact your local
distributor Rockwell Automation sales office.
This module mounts in a 1756 chassis and uses a separately-ordered
RTB or a Bulletin 1492 Interface Module (IFM)(1) to connect all
field-side wiring. This module uses one of the following RTBs:
1756-TBNH 20 position NEMA RTB
1756-TBSH 20 position Spring Clamp RTB
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Note the Power Requirements
This module receives power from the 1756 chasis power supply and
requires 2 sources of power from the backplane:
· 150mA at 5.1V dc
· 40mA at 24V dc
Add this current/power value (1.73W) to the requirements of all other
modules in the chassis to prevent overloading the power supply.
Key the Removable Terminal Block/Interface Module
Wedge-shaped keying tabs and U-shaped keying bands came with
your RTB to prevent connecting the wrong wires to your module.
Key positions on the module that correspond to unkeyed positions
on the RTB. For example, if you key the first position on the module,
leave the first position on the RTB unkeyed
Wire the Module
You can only connect wiring to your module through an RTB or IFM.
The example below shows how to wire the module.
Note the Power Requirements
This module receives power from the 1756 chasis power supply and
requires 2 sources of power from the backplane:
150mA at 5.1V dc
210mA at 24V dc
Add this current/power value (5.8W) to the requirements of all other
modules in the chassis to prevent overloading the power supply.
