Honeywell TC-ODD321 Experion DC Output Module

The Honeywell TC-ODD321 is a high-density 32-channel discrete DC output module designed for Honeywell Experion control systems. It provides switching logic and actuation power for field devices such as solenoids, relays, and indicator lights across two isolated 16-point groups.

Voltage Thermal Derating and Surge Capacity

The module operates across a flexible DC voltage output range that features linear derating based on ambient operating temperature, providing 10 to 31.2 VDC at up to 50 deg C and 10 to 28 VDC at 60 deg C. Each channel supports a surge current of 1 A for 10 ms (repeatable every 2 s at 60 deg C) to handle inrush currents from inductive loads.

Output Load Limits and Interfacing

To ensure valid state switching, each point requires a minimum on-state load current of 3.0 mA. Maximum on-state voltage drop is rated at 1 VDC at rated current per point (3 VDC under IEC 1131-2 conditions). Total power dissipation for the module is 6.1 W, and field wiring interfaces via the TC-TBCH 36-position terminal block.

Frequently Asked Questions

Q: How are the output channels grouped on the TC-ODD321 module?

A: The 32 output channels are split into two commons with 16 points per common.

Q: What is the maximum surge current capacity for individual outputs on the TC-ODD321?

A: Each output channel can handle a surge current of 1 A for 10 ms, repeatable every 2 seconds at 60 deg C.

Q: Which terminal block is required to interface field wiring to the TC-ODD321?

A: Field wiring connects using the TC-TBCH 36-position terminal block.