Honeywell 10201/2/1 Fail-safe Digital Output Module
The Honeywell 10201/2/1, also cataloged as the 11501 Fail-safe Digital Output Module, operates as a dedicated hardware component for 24 V DC solid-state switching and inductive load control within Honeywell Fail-Safe Control (FSC) systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 10201/2/1 |
| Brand | Honeywell |
| Origin | USA / Germany |
| Weight | 0.15 kg |
| Dimensions | 30 mm x 200 mm x 150 mm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | 5 VDC at 25 mA, Internal 24 VDC at 25 mA, External 24 VDC at 70 mA |
| Number of Output Channels | 8 channels |
| Output Type | Solid-state source, short-circuit proof |
| Maximum Output Current | 550 mA per channel |
| Maximum Load Power | Up to 13 W |
| Voltage Drop | < 2.0 VDC at 500 mA |
| Off-State Current | < 0.1 mA |
4-20 mA HART Loop Protocol and Channel Isolation
The module interfaces output lines through dedicated solid-state switching circuits while maintaining strict channel-to-channel isolation across all 8 output paths. Integrated suppression diodes clamp back-EMF spikes generated by inductive actuators, safeguarding internal logic from voltage surges. Full diagnostic polling executes periodic self-testing of de-energization paths, watchdog inputs, and suppression diode integrity to guarantee safe state execution during fault conditions.
Frequently Asked Questions
Q: What is the maximum continuous current rating supported per output channel?
A: Each channel supports up to 550 mA for driving resistive or inductive loads up to 13 W.
Q: How does the module protect against inductive load switching transients?
A: Built-in suppression diodes are integrated into each output circuit to absorb voltage spikes during inductive load de-energization.
Q: What are the physical slot dimensions required for rack installation?
A: The module occupies a standard 4 TE width and 3 HE height (4 HP, 3U) chassis space.
Field Installation Guidelines
Ensure system rack power is completely de-energized prior to inserting the module into the designated chassis slots (guided by pins at holes A9 and C9). Align the printed circuit board carefully along the rack guide rails and push firmly until the backplane connectors seat completely. Fasten all front panel securing screws to establish chassis ground continuity and protect against mechanical vibration.
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| Warranty | 12 Months |
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