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Keterangan
ICS Triplex T3401 Digital Input Module
Configured for digital input signal acquisition in the Trusted TMR safety system, the ICS Triplex T3401 (T3401 Digital Input Module) provides direct electrical input processing. It accepts discrete field signals from 14 VDC to 30 VDC, converts them into validated logic states, and transfers channel status to the Trusted controller through the system backplane. Furthermore, the module supports deterministic signal evaluation for safety-related control functions.
Suffix Breakdown & Model Matrix
The supplied documentation identifies a single catalog number, T3401. No official suffix variants or model matrix are specified in the available technical data.
Hardware Specifications
Parameter
Specification
Model
T3401
Brand
ICS Triplex
Product Type
Digital Input Module
Origin
USA
Manufacturer
ICS Triplex
Shipping Location
Xiamen, China
Weight
1.82 kg
Dimensions
3.2 cm x 26.5 cm x 35.8 cm
Operating Temp
0 to 60 deg C
Storage Temp
-40 to 85 deg C
Operating Humidity
0 to 95% RH, non-condensing
Vibration
10 to 55 Hz, +/- 0.15 mm
Input Voltage Range
14 to 30 VDC
Turn-On Voltage
Minimum 12 VDC
Turn-Off Voltage
Maximum 4.7 VDC
Input Current
8.7 mA
Continuous Overvoltage
50 VAC
Burst Overvoltage
80 VAC for 5 s
Power Consumption
10 W
Heat Dissipation
34 BTU/h
Tariff Code
8537101190
Triple Modular Redundancy and Fail-Safe Signal Processing
The T3401 is designed for operation within the ICS Triplex Trusted safety platform, which implements a triple modular redundancy (TMR) architecture. Consequently, input data is processed through redundant hardware paths before the controller executes application logic. This architecture supports deterministic fault handling and allows the safety system to maintain operation when a single processing path becomes unavailable.
In addition, the module interfaces with the Trusted backplane using isolated signal paths. Therefore, electrical disturbances originating from field wiring are separated from internal processing circuitry. During abnormal operating conditions, the controller evaluates the validated input state according to the configured safety application and executes the defined fail-safe response.
Frequently Asked Questions
Q: Does the T3401 accept both 24 VDC and 30 VDC field input signals? A: Yes. The specified operating input range is 14 to 30 VDC. Signals within this range can be evaluated according to the configured logic application.
Q: Can the T3401 tolerate temporary AC overvoltage on an input channel? A: The published specifications indicate continuous tolerance up to 50 VAC and burst tolerance up to 80 VAC for 5 s. Installation should still comply with the system wiring requirements to prevent excessive electrical stress.
Q: What installation practices help maintain input signal integrity? A: Use shielded field cables where required, route input wiring separately from high-power conductors, and terminate cable shields according to the plant grounding standard to reduce electrical interference.
Field Installation Guidelines
Verify that the field supply voltage remains within the specified 14 to 30 VDC operating range before energizing the module.
Disconnect system power or follow the approved maintenance procedure before inserting or removing hardware from the Trusted chassis.
Route digital input cables separately from motor power, relay output, and variable frequency drive wiring to minimize electromagnetic interference.
Connect cable shielding according to the plant grounding practice and avoid multiple shield grounding points unless specified by the system design.
Confirm terminal identification before applying field voltage because incorrect wiring can generate false input states.
Inspect terminal connections after installation and verify input status through the Trusted system diagnostics before placing the equipment into service.
