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Description

The Honeywell 10302/2/1 is a Watchdog Repeater (WDR) module designed for use within the Fail-Safe Controller (FSC) system. This module serves a critical role in monitoring the 5 Vdc and 24 Vdc power supplies provided to I/O modules. It ensures system integrity by transmitting a secure watchdog signal to output modules, maintaining fault-tolerant control in safety-critical environments.

Features

  • Monitors 5 Vdc and 24 Vdc power supply rails for I/O modules.
  • Required in configurations where the watchdog current exceeds 900 mA.
  • Supports horizontal bus connection within the FSC rack.
  • Equipped with a DIN 41612 type F male connector (rows d, b, and z utilized).
  • Essential for systems where 24 Vdc supply voltages may exceed 31.0 Vdc.

Applications

  • Fail-Safe Controller (FSC) systems requiring redundant power monitoring.
  • Industrial automation systems managing non-redundant and redundant I/O combinations.
  • Safety-critical monitoring for chemical dosing and injection pump systems.
  • High-speed textile inspection and packing line automation.
  • Sanitary production lines requiring Clean-in-Place (CIP) safety monitoring.

Technical Specifications

Model 10302/2/1
Function Watchdog Repeater Module
Power Requirements (5 Vdc) 35 mA
Power Requirements (24 Vdc) 25 mA
Space Requirements 4 TE, 3 HE (4 HP, 3U)
Connector Type DIN 41612, Type F
Software Version >= 3.00
Approvals CE, TUV, UL

Installation Guidelines

  • Ensure the system is powered down before inserting or removing the module from the rack.
  • The module requires a horizontal bus connection; verify proper seating in the FSC backplane.
  • Handle with care to prevent electrostatic discharge (ESD) damage to sensitive internal components.
  • Ensure the 24 Vdc supply remains below 37 Vdc under all fault conditions to protect connected I/O modules.
  • Verify that the watchdog output is correctly wired to the corresponding input of the monitored output modules.

FAQ

What is the primary function of the 10302/2/1?

The 10302/2/1 acts as a watchdog repeater to monitor power supply integrity (5 Vdc and 24 Vdc) and relay watchdog signals to output modules, ensuring fault-tolerant operation in FSC systems.

When is a watchdog repeater required?

It is required in configurations where the watchdog current exceeds 900 mA, when 24 Vdc supply voltages can exceed 31.0 Vdc, or when combining redundant and non-redundant I/O configurations.

What are the power requirements for this module?

The module requires a 5 Vdc supply at 35 mA and a 24 Vdc supply at 25 mA for operation.

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