6HBWDOG1 Watchdog Relay

Brand: Red Lion Controls

The Red Lion heartbeat relay module is used as a failsafe system to monitor and shut down a PLC or RTU based automation system in the event of a malfunction in the processor controlling the system. 

A secondary safety check is the most economical way to achieve system safety shutdown. This is accomplished is by powering the control system through the internal 10A rated relay built into the watchdog module. 

Loss of processor control is detected by monitoring a discrete output signal designated as the “Heartbeat” which toggles on and off under processor control. 

If the processor malfunctions, the heartbeat will cease to toggle and the Heartbeat Watchdog Module will sense this failure and shut down the system by opening the relay powering the system. 

The Heartbeat Watchdog Module is designed for extreme reliability, using no microprocessor or other programmable logic elements in its design. 

Using hard wired logic elements in place of CPU and memory based circuitry removes the possibility of program bugs or memory failure disrupting the operation of the module.

Specifications

Approvals & Certifications

  • EN 55022, 61000-4-2,3,4,5,6,8

Approvals & Certifications

  • ABS
  • ATEX (Zone 2)
  • CE
  • CSA C22.2/213, C22.2/142
  • EMC Immunity
  • EMI Emissions FCC Part 15, ICES-003, Class A
  • IEC 61010-1, EN 55022 61000-6-4, 60079-0,15
  • Marine & Maritime: DNV 2.4
  • Marine & Maritime: LLOYD
  • UL 508

Consumption

  • Maximum

Current

  • Guaranteed OFF: 1 mA DC

Electrical Connectors

  • 30 to 12 AWG
  • M3 Screw Terminal

Electrical Protection

  • Overvoltage

Electrical Rating

  • 2 A at 30 Vdc, Maximum

Environmental Protection

  • IP30

Frequency

  • Heartbeat: 1 to 50 Hz

Humidity

  • 5 to 95% Relative Humidity, Non-Condensing

Indication

  • LED

Input

  • 10 mA at 24 Vdc
  • 10-30 Vdc

Isolation

  • Input Isolation: 150 V

Materials of Construction

  • Packaging: Impact Resistant Lexan Polycarbonate

Mounting

  • DIN Rail Mounting

Operating Temperature

  • -40° to 80° C (-40° to 176° F)

Power Supply

  • 12-24 Vdc

Resistance

  • Input Resistance: 2.6 KiloOhms at 24 Vdc

Shock

  • IEC 60068-2-27

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Switch Type

  • DIP Switches

Torque

  • 5 In/Lbs

Vibration

  • IEC 60068-2-6

Voltage

  • Guaranteed OFF: 1 Vdc
  • Guaranteed ON: 9 Vdc

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