Installation Notes
- The Redundant Discrete Output 40 Pin Mass Terminal Block is recommended to provide terminations for a redundant pair of DO 32-channel 24 VDC high-side Plus cards.
- The return connection for all 32 channels is the 24 VDC Field Power Ground. You must supply an external wire to make this connection. However the connection is internally made if the 40-pin mass terminal block is used with the DO 32 channel 24 VDC high side Plus card and no external wire is required. A resettable 1A fuse protects each group of four channels (1-4, 5-8,...29-32) from a short circuit. Excessive current on any single channel can trip the fuse and disable all four channels in the group. If the fuse trips, turn off or disconnect the group of four channels and allow the fuse to cool and reset.
- When the redundant DO, 32-Channel, 24 VDC high-Side Plus card is used with the Redundant Discrete Output 40 Pin Mass Termination Block and the Pepperl+Fuchs HiD Series Boards, the card can be configured to detect faults in the termination. Two parameters, T1_FAULT_DETECT (for the ribbon cable connection for channels 1-16), and T2_FAULT_DETECT (for the ribbon cable connection for channels 17-32), can be enabled in DeltaV Explorer for the card. When these parameters are set to True, detection of the ribbon cable connection between the Redundant Discrete Output 40 Pin Mass Termination Block and the Pepperl +Fuchs HiD Series Board is enabled and the system detects faults such as a missing cable, missing Pepperl+Fuchs HiD Series Board or a fault condition on an IS barrier on the Pepperl+Fuchs HiD Series Boards. The Pepperl+Fuchs HiD Series Boards are Emerson Alliance Program products.
Note
The termination fault detection feature is available only when the redundant DO, 32-Channel, 24 VDC high-Side Plus card is used with the Redundant Discrete Output 40 Pin Mass Termination Block connected to the Pepperl+Fuchs HiD Series Boards when IS barriers are required.
