Description

ICS Triplex T3420A Analog Input Module

Configured for analog signal acquisition in the ICS Triplex Trusted safety control architecture, the ICS Triplex T3420A (T3420A Analog Input Module) accepts voltage and current field signals and converts them through a 16-bit ADC for controller processing.

Hardware Specifications

Parameter	Specification
Model	T3420A
Brand	ICS Triplex
Product Type	Analog Input Module
Origin	USA
Weight	1.52 kg
Dimensions	3.2 x 26.5 x 36 cm estimated shipping size
Operating Temp	-40 deg C to +70 deg C
Storage Temp	-50 deg C to +85 deg C
Humidity	0-95% RH, non-condensing
Input Voltage	0-10 VDC, +/-10 VDC
Input Current	0-20 mA, 4-20 mA
Number of Channels	16
ADC Resolution	16-bit
Sampling Rate	Configurable
Supply Voltage	24 VDC, +/-10%, redundant inputs
Power Consumption	<= 5 W typical
Isolation	1500 V AC
Tariff Code	8537101190
Place of Shipment	Xiamen, China

TMR Safety Control and Galvanic Isolation

The T3420A operates as an analog acquisition component within the ICS Triplex safety-control architecture. Its 16 input channels support voltage and current signals, while the 16-bit ADC converts field measurements into digital values for system processing.

The specified 1500 V AC isolation separates the analog input circuitry from associated electrical domains. In addition, the 24 VDC supply uses redundant inputs to support the power arrangement specified for the module.

For safety-system integration, engineers should verify the actual system configuration, I/O allocation, and application-specific safety requirements before commissioning. Do not infer SIL3 or TMR 2oo3 certification for this individual module solely from the supplied specifications.

Frequently Asked Questions (FAQ)

Q: What analog signals does the ICS Triplex T3420A accept?
A: The module accepts 0-10 VDC, +/-10 VDC, 0-20 mA, and 4-20 mA input signals across 16 channels.

Q: What ADC resolution does the T3420A provide?
A: The T3420A uses a 16-bit ADC for analog signal conversion. Its sampling rate is configurable.

Q: What isolation and power characteristics does the T3420A specify?
A: The module specifies 1500 V AC isolation and a 24 VDC +/-10% redundant supply input. Typical power consumption is <= 5 W.

Field Installation Guidelines

• Install the T3420A in the designated ICS Triplex system carrier or chassis according to the applicable hardware installation documentation.
• Confirm module orientation and mechanical engagement before applying system power.
• Verify the field signal type before wiring each analog channel.
• Separate low-level analog wiring from high-voltage power conductors and high-noise switching circuits.
• Use appropriate shielded instrumentation cable where the application requires improved noise immunity.
• Terminate cable shields according to the plant grounding and control-system grounding scheme. Avoid unintended ground loops.
• Confirm the redundant 24 VDC supply connections and polarity before energizing the module.
• Check field wiring continuity and signal polarity before commissioning each channel.
• Verify the configured input range against the connected field transmitter or voltage source.
• Do not exceed the specified input signal ranges or isolation limits.
• Record channel assignments and signal types during commissioning to support subsequent maintenance.

Specifications

• Brand: ICS Triplex

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems