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ST-121F
The ST-121F is a discrete input module incorporated in the GE Fanuc Emerson RSTi PacSystem. This device operates with a nominal voltage of 24V DC and accommodates an input voltage range of 10.2 to 28.8V DC, making it adaptable to various configurations.
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Technical specifications for ST-121F
| Manufacturer | GE Fanuc Emerson |
|---|---|
| Product Line | RSTi PacSystem |
| Part Number | ST-121F |
| Weight | 2.00 lbs (0.91 kg) |
| Product | Discrete Input Module |
| Nominal Input Voltage | 24V DC |
| Input Voltage Range | 10.2 to 28.8V DC |
| Number of Inputs | 16 |
| Number of Inputs per Common | 16 |
| Typical Filtering Time | 1.5 msec |
| Maximum On-State Current | 6 mA per Input Point at 28.8V DC |
| Maximum Internal Power Load | 45 mA at 5V DC |
| Input Signal Delay | 3 msec |
Within the RSTi PacSystem, the ST-121F discrete input module operates at a nominal input voltage of 24V DC. This module supports a diverse input voltage spectrum ranging from 10.2 to 28.8V DC. It features 16 total inputs, with the configuration allowing all inputs to share a common point. Each input can draw a maximum on-state current of up to 6 mA when supplied with 28.8V DC, ensuring sufficient signal strength.
Typical filtering time is recorded at 1.5 milliseconds, promoting stability against transient interruptions. In addition, the input signal exhibits a delay of 3 milliseconds, which is crucial for applications requiring brief response times. The ST-121F module has a maximum internal power load capacity of 45 mA at 5V DC, supporting various operational demands in automation processes.
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