Triconex 5301S2 Triple Secure Digital Output DO Module

Triconex 5301S2 Triple Secure Digital Output DO Module

1、 Basic Core Information
Model: 5301S2
Brand: Triconex (under Schneider, formerly Invensys)
System: TriPak old Tricon SIS safety instrumented system (same rack as 5481-1S2 AI, 5401S2 AO)
Category: TMR Triple Redundant Relay DO Output Card
Origin: United States USA
Safety certification: T Ü V IEC61508 SIL3, FM, ATEX, meets ESD emergency shutdown and BMS combustion management standards
Architecture: Three independent hardware channels with 2oo3 voting, supports online hot plugging, and does not trip or shut down in case of single channel failure
2、 Complete electrical parameters
1. Output channel specifications
Number of channels: 16 independent mechanical relay outputs (three TMR synchronous drives)
Contact type: Forced guided SPDT safety relay (meets NAMUR safety specifications to prevent contact adhesion failure)
Contact capacity: 8A @ 250VAC/8A @ 30VDC
Loop response speed: ≤ 3ms (from logic instruction to contact action)
Load diagnosis: Real time collection of each output current, ± 10mA accuracy verification of load status, detection of wire breakage, short circuit, and contact faults
2. Isolation and protection
On site circuit ↔ Backplane bus: 2500VAC voltage resistant isolation
Built in hardware overcurrent and surge absorption protection to prevent on-site short circuit breakdown of the module
Full channel fault self diagnosis, fault code uploaded to TriStation software
3. Power Supply and Environment
Power supply: The rack backplane is powered by 5V DC, with a full load power consumption of approximately 7W
Working temperature: -40 ℃~+70 ℃; Storage temperature: -40 ℃~+85 ℃
Humidity: 5% to 95% without condensation, suitable for wide temperature cabinets in refineries and power plants
Net weight: approximately 1.2kg, standard 3U TriPak rack card size
4. Communication and Programming
Backplane high-speed TMR internal bus, three channel synchronous operation, result cross comparison
Supporting software: TriStation 1131, supporting ladder diagram LD, function block FBD, causal matrix CEM program
3、 Shutdown status (core procurement focus)
Officially discontinued EOP: 2017
TriPak’s entire series of I/O (5301S2, 5401S2, 5481 series) synchronously terminates the production line;
Original factory inventory clearance period: 2017-2020. After 2020, Schneider’s original factory did not release any new complete machines;
Current supply situation: There is only a small backlog of new machines, second-hand dismantled machines, and third-party refurbished parts in the market, making it impossible to place new orders with the original factory;
Original factory maintenance: In 2022, the original board level maintenance channel will be closed, and the relays and drive chips will be disconnected. Only third-party maintenance channels can repair them.

4、 Distinguishing easily mixed models (avoiding pitfalls in procurement)
Can the model, category, and compatible racks be interchanged
5301S2 16 way relay DO output TriPak old Tricon rack old system dedicated, Trident incompatible
5401S2 4-channel 4-20mA AO analog output TriPak rack can be mixed and plugged into the same rack, and its function cannot be replaced
3482S2 Trident’s new generation AO card Trident’s new rack hardware, backplane, and program are completely incompatible
5101S2 Tri GP Mini System CPU Processor Tri GP Compact Rack and 5301S2 No Compatibility
5、 Typical application scenarios
SIS/ESD systems for oil and gas, chemical, and thermal power, driving emergency shut-off valves, fuel cut-off solenoid valves, unit trip circuits, fire sound and light alarms, fan baffle actuators, and other safety critical equipment.
6、 Alternative solutions
Short term emergency: Only stock 5301S2 of the same model can be directly replaced, and wiring and configuration do not need to be changed;
Long term system renovation: Upgrade the entire machine to Trident platform, select 3202S2 relay DO card, and synchronously replace the rack CPU、 Rewrite the security program.