05701-A-0328 Honeywell Triple SPCO Relay Card for System 57 Gas Detection System

• Brand
  Honeywell
• Model
  05701-A-0328
• Product Name
  Triple SPCO Relay Card for System 57 Gas Detection System
• Place of Origin
  United States
• Customs HS Code
  85371011
• Power Supply
  18–32 Vdc
• Dimensions
  170 mm × 25 mm × 112 mm
• Weight
  0.165 kg
• Operating Temperature
  -20 ℃ ~ +60 ℃
• Storage Temperature
  -40 ℃ ~ +70 ℃
• Warranty
  12 month
• Product Status
  new

Honeywell 05701-A-0328 Triple SPCO Relay Interface Card

The Honeywell 05701-A-0328 is a triple SPCO relay and field interface card designed for the Honeywell System 57 gas detection system. It receives digital status signals from the upstream single-channel control card through backplane connection.

Once gas concentration hits the predefined A1, A2 and A3 alarm thresholds, or fault/inhibit conditions are triggered, its internal drive circuitry will activate the corresponding SPCO relays.

It supplies isolated voltage-free changeover contacts to transmit alarm, fault and inhibit signals to peripheral devices including DCS, PLC, sounders, beacons and emergency shutdown interlock circuits.

Relay operation logic can be preconfigured as latching or non-latching, normally energized or normally de-energized to satisfy diverse safety specification demands.

This card provides electrical isolation between the gas detection control loop and external field wiring, which suppresses signal interference and safeguards the main control card.

Functioning as a dedicated signal output interface, it converts internal digital alarm status into dry contact switching signals to support reliable safety interlock actions.

The Honeywell 05701-A-0328 needs no dedicated programming software. All relay logic parameters are set through the on-board menu of the System 57 single-channel control card, and downloaded to the relay interface card over the backplane bus.

The three SPCO relays support independent assignment of trigger sources, including A1 low alarm, A2 high alarm, A3 highest alarm, system fault and inhibit signal.

Each relay offers two working modes: latching and non-latching. The latching type holds its contact state after actuation and demands manual reset, while the non-latching type resets automatically when the trigger condition clears.

Engineers may also configure the energization mode as normally energized or normally de-energized, to satisfy fail-safe criteria for safety interlock circuits.

Once all logic settings are saved on the control card, the relay card will switch its dry-contact outputs in accordance with pre-defined rules upon receiving relevant status commands.

After configuration completion, functional testing via simulated alarm and fault signals is required to validate reliable relay performance prior to official commissioning.

FAQ: Honeywell 05701-A-0328 UV Flame Detector

Q: What is Honeywell 05701-A-0328?

A: Honeywell 05701-A-0328 is a UV flame detector, designed to detect ultraviolet radiation from flame combustion for burner and boiler flame monitoring systems.

Q: What is the working principle of Honeywell 05701-A-0328?

A: It detects UV light emitted by flames. It can quickly identify flame signals and send alarm or switch signals to the flame safeguard controller.

Q: What are the typical applications of Honeywell 05701-A-0328?

A: It is widely used in gas burners, oil burners, industrial boilers, furnaces, thermal incinerators and heating equipment for flame safety supervision.

Q: What is the operating voltage for Honeywell 05701-A-0328?

A: It works with matched Honeywell flame amplifier modules, please check the amplifier datasheet for the complete power specification.

Q: Can Honeywell 05701-A-0328 resist harsh industrial environments?

A: The detector housing is rugged, suitable for high-temperature and dusty industrial burner sites, but it needs to be installed away from direct strong sunlight.

Q: What signal does Honeywell 05701-A-0328 output?

A: It outputs UV pulse signals to the supporting flame amplifier for flame presence judgment and loss-of-flame alarm.

FX-USI-0002
CC-PCNT02
FC-QPP-0001
FC-SCNT01
FS-USI-0002
FC-QPP-0002
51198685-100