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Honeywell FC-SDO-1624 Safe Digital Output Module

Configured for safe digital signal execution in Honeywell Safety Manager and Fail-Safe Controller systems, the Honeywell FC-SDO-1624 (SDO-1624 Safe Digital Output Module) provides direct electrical switching control for safety-related field devices.

Hardware Specifications

Parameter	Specification
Model	FC-SDO-1624
Base Model	SDO-1624
Brand	Honeywell
Product Type	Safe Digital Output Module
System Compatibility	Honeywell Safety Manager / Fail-Safe Controller (FSC)
Origin	USA
Weight	Approx. 1.2 kg to 2.0 kg (depending on chassis configuration)
Dimensions	Approx. 200 x 170 x 60 mm
Operating Temp	-10 deg C to +55 deg C
Power Consumption	Approx. 5 W without external load
Channel Quantity	16 digital output channels
Nominal Voltage	24 VDC
Operating Voltage Range	18 to 30 VDC
Response Time	10 ms to 25 ms depending on controller configuration
Output Type	Safety-rated digital output interface
On-state Voltage Drop	Less than 2.0 VDC at rated current
Channel Diagnostics	Individual channel status monitoring and LED indication
Mounting Configuration	Honeywell Safety Manager / FSC rack installation
Environmental Protection	Conformal coated industrial assembly
Certifications	CE, UL, CSA, TÜV, ATEX depending on system configuration

Process Control Signal Interface Characteristics

The FC-SDO-1624 provides 16 safety digital output channels for direct actuator control within Honeywell safety systems. Moreover, each channel incorporates diagnostic monitoring functions to detect output circuit abnormalities, field wiring faults, and device status changes.

The module operates with 24 VDC field circuits and supports channel-level supervision through the Safety Manager controller. In addition, the hardware design supports electrical isolation between internal control logic and external field connections to maintain signal integrity.

The module does not provide analog measurement functions. Instead, it executes binary output commands generated by the safety controller logic and transfers these commands to connected field devices such as shutdown valves, relays, and protective actuators.

Frequently Asked Questions

Q: Does the FC-SDO-1624 support analog signal measurement?
A: No. The FC-SDO-1624 is a digital output module designed for binary actuator control. Analog input and measurement functions require separate Honeywell I/O modules.

Q: What field voltage level does the FC-SDO-1624 operate with?
A: The module is designed for 24 VDC safety field circuits with an operating range of 18 to 30 VDC.

Q: How does the module detect output channel faults?
A: The module uses channel diagnostics and status monitoring functions to identify abnormal output conditions and provide diagnostic information to the safety controller.

Field Installation Guidelines

• Install the FC-SDO-1624 only in the specified Honeywell Safety Manager or FSC rack position.
• Verify the module addressing and controller configuration before connecting field wiring.
• Route 24 VDC safety circuits separately from high-voltage power cables to reduce electrical interference.
• Use appropriate shield termination methods when field devices require shielded cabling.
• Confirm terminal wiring polarity before energizing the field circuit.
• Check diagnostic LED indicators after installation to verify normal module operation.
• Follow Honeywell system engineering manuals for grounding, cabinet layout, and maintenance procedures.

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