Overview
The Honeywell 10102/1/2 is a four-channel fail-safe analog input module designed for Honeywell FSC safety systems. It accepts 0-5 V, 1-5 V, 0-10 V, and 2-10 V analog signals, allowing multiple voltage input configurations within one module. Furthermore, it provides galvanic isolation from the 24 VDC and 5 VDC system supplies, along with integrated self-testing functions for input accuracy and signal integrity.
Key Features
- Four analog input channels for voltage signal acquisition.
- Supports 0-5 V, 1-5 V, 0-10 V, and 2-10 V input ranges.
- Supports active inputs with 26 VDC loop power or passive input connections.
- High input impedance allows parallel connection of modules to the same signal source.
- Integrated self-test checks measurement accuracy, input range, channel crosstalk, and supply voltage.
- Galvanic isolation separates analog inputs from system power supplies.
- Supports redundant and non-redundant I/O configurations.
Analog Input Operation
The 10102/1/2 converts external voltage signals into digital values for processing by the FSC safety system. Its four channels support both 0-5 V and 0-10 V signal ranges, including the corresponding live-zero configurations of 1-5 V and 2-10 V.
Meanwhile, the high input impedance helps reduce the loading effect on connected signal sources. For example, multiple modules can monitor the same voltage signal in parallel without significantly increasing the load on the source.
Loop Power and Isolation
The module supports active and passive input connections. For active connections, it supplies 26 VDC loop power with a current limit and short-circuit protection. This allows compatible field transmitters to receive operating power directly through the module.
In addition, galvanic isolation separates the analog input circuits from the 5 VDC and 24 VDC system supplies. The integrated self-test monitors measurement accuracy, input range, channel crosstalk, and supply voltage.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 10102/1/2 |
| Brand | Honeywell |
| Product Type | Fail-Safe Analog Input Module |
| System | FSC Safety System |
| Type Number | 10102/1/2 01903* |
| Number of Input Channels | 4 |
| Input Signal Type | Analog Voltage |
| Voltage Input Ranges | 0-5 V, 1-5 V, 0-10 V, 2-10 V |
| Input Resistance | 333 kOhm (0-5 V); 250 kOhm (0-10 V) |
| A/D Resolution | 12-bit |
| Inaccuracy | 20 mA |
| Loop Power Protection | Short-circuit protected |
| 5 VDC Supply Current | 30 mA |
| 24 VDC Supply Current | 175 mA + 25 mA per active input |
| Isolation | Galvanic isolation between analog inputs and system power |
| Self-Test Functions | Accuracy, range, crosstalk, and supply voltage |
| I/O Configuration | Redundant and non-redundant |
| Approvals | CE, TÜV, UL |
| Minimum Software Version | 2.77 |
| Space Requirement | 4 TE, 3 HE (4 HP, 3U) |
Frequently Asked Questions
Q: How many analog signals can the Honeywell 10102/1/2 monitor?
A: The module provides four independent analog input channels. Each channel supports the specified 0-5 V or 0-10 V range, including 1-5 V and 2-10 V configurations.
Q: Does the 10102/1/2 provide power to connected transmitters?
A: Yes. It provides a 26 VDC loop power output for active input connections, with a specified operating current range of 0.2 mA to 20 mA. The output also includes short-circuit protection.
Q: Can the module operate in a redundant I/O configuration?
A: Yes. The 10102/1/2 supports both redundant and non-redundant I/O configurations. The actual system arrangement must follow the applicable FSC configuration requirements.
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