Manufacturer: Honeywell
Product No.: 10302/2/1
Country of origin:United States
Product Type: Watchdog Repeater Modules
Payment: T/T, Western Union
Weight: 120g
Shipping port: Xiamen
Warranty: 12 months
Integrating directly into safety-critical system topologies, the Honeywell 10302/2/1 Watchdog Repeater (WDR) acts as a signal replication and distribution node within Honeywell Fail Safe Control (FSC) safety environments. This specialized Eurocard module is engineered to regenerate and extend critical watchdog diagnostic signals, guaranteeing safety-loop integrity across multiple power supply boundaries and high-current demands. The unit is vital for maintaining the safety integrity level of the control system by continuously verifying system health across non-redundant and redundant system segment boundaries.
| Specification Parameter | Value / Rating |
|---|---|
| Manufacturer | Honeywell |
| Model Number | 10302/2/1 |
| Associated Part Number | 3400126 |
| Module Type Number | 12600 |
| Required Software Version | Revision 3.00 or higher |
| Space Requirements | 4 TE, 3 HE (4 HP wide, 3U high standard Eurocard) |
| Current Consumption (5 Vdc) | 35 mA (excluding external WDROUT output current) |
| Current Consumption (24 Vdc) | 25 mA |
| Input Signal Current (WDG1 + WDG2) | 0.1 mA |
| Physical Module Keying | Holes at locations A5 and A9 |
| Physical Rack Keying | Large pins at locations A5 and A9 |
| Net Module Weight | 0.12 kg (0.26 lbs) |
| Shipping Weight (Calculated) | 1.50 kg (3.30 lbs) |
| Safety Certificates & Approvals | CE, TÜV, UL |
The 10302/2/1 functions as a drop-in replacement for legacy hardware iterations of the 3400126 series. However, engineers must verify that the FSC system software/firmware is compiled at or above Version 3.00. Mixing older revisions within subracks containing newer watchdog distributions can result in erratic signal recognition due to subtle changes in internal logic thresholds.
A common design mistake is utilizing power supplies that allow voltage levels to fluctuate past 37.0 Vdc during transient or double fault conditions. The maximum output voltage of the feeding 24 Vdc supply must be strictly limited to under 37 Vdc. Exceeding this value can permanently damage the internal optical isolation elements of the WDR module, defeating the safety separation barriers between the redundant CPU and non-redundant I/O subracks.
Before inserting the 10302/2/1 module into the subrack, verify the physical coding keying. The module uses guide holes at A5 and A9 to accept large keying pins on the rack backplane. Forceful insertion without verifying alignment will bend the gold-plated Eurocard pin connections, causing intermittent watchdog faults or complete module failure. Ensure the chassis ground connections of the backplane are bonded directly to a low-impedance master safety ground to eliminate signal noise on WDG1 and WDG2 inputs.
CRITICAL WARNING: SAFETY DE-ENERGIZATION
Always completely isolate and de-energize the safety subrack and auxiliary power supplies (5 Vdc and 24 Vdc loops) prior to module insertion or removal. Hot-swapping this module in safety-active systems can cause a temporary loss of the watchdog logic signal, inducing an immediate, uncontrolled safe-state trip of all connected field actuators.
Verify Backplane Alignment: Match the A5 and A9 guide pins on the safety backplane with the corresponding receiver holes on the 10302/2/1 Eurocard.
Insert and Seat: Slide the module smoothly along the subrack card guides until the DIN connector fully mates with the backplane. Secure the front panel fasteners to prevent vibrational displacement.
Validate Power Paths: Power up the 5 Vdc and 24 Vdc rails sequentially. Confirm that the input current draw on WDG1/WDG2 matches the nominal design thresholds.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.
A VFD turns fixed-frequency mains into controlled voltage and frequency so AC motors match real load—cutting pump and fan energy while tightening torque, soft-start, and braking behavior.
PLCs still run the plant floor: scan cycles, I/O, and IEC 61131-3 languages decide whether machines stay deterministic. Here is how controllers work, where they win, and where they strain.
Learning industrial automation now means mastering PLCs, networks, and protection systems—not just robots. This guide maps skills, pitfalls, and career paths for engineers entering control-heavy...
A practical guide to replacing aging Bailey Symphony operator stations running on OpenVMS Alpha. It compares Alpha emulation, OpenVMS x86 migration, OPC re-platforming, and phased ABB modernization.
Maintenance data connects work orders, sensor signals, asset history, costs, and technician knowledge. Used well, it improves planning, reliability, predictive maintenance, spare-parts control, and...
