🔧 Product Overview
The HONEYWELL IOCHAS-0002S is an industrial I/O chassis designed for Honeywell Safety Manager A.R.T. systems. It provides the mechanical mounting, backplane, and bus infrastructure required to install and connect multiple non-redundant I/O modules.
According to Honeywell’s hardware reference, the IOCHAS-0002S chassis supports up to 18 non-redundant I/O modules. The chassis includes a 19-inch mechanical housing, two IO extender positions, and the associated I/O bus hardware.
The referenced unit is Revision 2.0 and is listed with a 5 VDC / 100 mA supply specification. The available listing information identifies the unit as Used, with an approximate listed weight of 7.540 kg.
⚙️ Key Features
- Honeywell Safety Manager A.R.T. I/O chassis
- Model: IOCHAS-0002S
- Revision 2.0
- Designed for non-redundant I/O modules
- Supports up to 18 standard I/O modules
- 19-inch rack-style mechanical housing
- Integrated I/O backplane and bus architecture
- Two dedicated IO extender positions
- 5 VDC / 100 mA supply specification as listed
- Suitable for Safety Manager system expansion and replacement
- Designed for industrial control and safety-system applications
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | HONEYWELL |
| Model | IOCHAS-0002S |
| Product Type | PLC I/O Chassis Rack |
| System | Safety Manager A.R.T. |
| Revision | 2.0 |
| I/O Type | Non-Redundant I/O |
| Maximum Standard I/O Modules | Up to 18 |
| Rack Format | 19-inch |
| Listed Supply | 5 VDC / 100 mA |
| IO Extender Positions | 2 |
| Operating Temperature | Up to 70°C, according to listed specification |
| Condition | Used |
| Weight | Approx. 7.540 kg as listed |
| Country of Origin | United States, as listed |
| Application | Safety / Industrial Control |
🧩 Chassis Configuration
The IOCHAS-0002S is more than an empty mounting rack. Honeywell documentation identifies several elements that make up the chassis assembly.
The basic configuration includes a 19-inch I/O housing with cover plates, an I/O backplane for non-redundant I/O, horizontal I/O bus hardware, and two IO-0002 extender modules. The official hardware reference specifies that the chassis accommodates up to 18 non-redundant I/O modules.
The available component arrangement includes:
- IO housing
- Non-redundant I/O backplane
- Horizontal I/O bus backplane
- I/O bus transfer board
- Two IO-0002 extender modules
- Blind front at the designated slot
This arrangement allows the chassis to act as the central mounting and interconnection point for the associated Safety Manager I/O hardware.
🔌 Power & Operating Function
The referenced product listing identifies a 5 VDC / 100 mA supply specification. The same listing also describes additional power paths and output ratings associated with the complete chassis assembly.
For the two extender positions, the available technical information identifies two 5 VDC supply outputs, each rated at 100 mA. These supplies are associated with the IO-0002 positions rather than being treated as the main field-power source for all installed I/O modules.
The chassis itself provides the physical and electrical infrastructure for the installed I/O modules. Actual field-device power, signal conditioning, and I/O functions are handled by the individual modules installed in the rack.
🛠️ Installation & Maintenance
Before installing a replacement IOCHAS-0002S, compare the existing chassis carefully.
Check:
- Model number: IOCHAS-0002S
- Revision number
- Backplane configuration
- Number and position of installed modules
- IO-0002 extender modules
- Bus connections
- 5 VDC supply wiring
- Grounding arrangement
- Rack mounting dimensions
- Existing Safety Manager configuration
Disconnect system power before removing or installing the chassis. Never remove I/O modules or bus connections from an energized safety-system rack unless the system documentation specifically permits the procedure.
After installation, inspect all module connectors and backplane connections before powering the system. Verify the 5 VDC supply, module status indicators, bus communication, and controller diagnostics before returning the system to normal operation.
🔍 Maintenance Tips
Backplane inspection: Check connectors and contacts for oxidation, contamination, or bent pins.
Mechanical inspection: Make sure the rack frame and mounting hardware are secure and free from deformation.
Power check: Measure the relevant 5 VDC supply before installing sensitive modules.
Module alignment: Confirm that each I/O module is correctly seated and secured.
Bus inspection: Check horizontal bus and extender connections for loose or damaged connectors.
Environmental control: Keep the chassis clean and dry, with adequate ventilation around the installed modules.
For spare inventory, record the complete model and revision together. Similar-looking Honeywell chassis assemblies should not be assumed interchangeable without checking the backplane and Safety Manager configuration.
❓ Common Questions
Q: What is the HONEYWELL IOCHAS-0002S?
A: It is an I/O chassis for Honeywell Safety Manager A.R.T. systems, designed to accommodate non-redundant I/O modules.
Q: How many I/O modules can it hold?
A: Honeywell’s hardware reference specifies support for up to 18 non-redundant I/O modules.
Q: What does Revision 2.0 mean?
A: It identifies the hardware revision of the chassis. When replacing an existing unit, the revision should be checked against the original equipment.
Q: What is the listed power specification?
A: The referenced unit is listed as 5 VDC / 100 mA. Additional power ratings may apply to other sections of the complete chassis assembly, so the actual nameplate should be checked before commissioning.
Q: Is this a complete PLC controller?
A: No. The IOCHAS-0002S is a chassis and I/O infrastructure assembly. The actual control and I/O functions are provided by the modules installed in the chassis.
Q: Is the chassis redundant?
A: The IOCHAS-0002S is specified by Honeywell for non-redundant I/O modules.
Q: Is this particular unit new?
A: No. The referenced listing identifies the condition as Used.
Q: What is the approximate weight?
A: The referenced listing specifies approximately 7.540 kg.
🔄 10 Related HONEYWELL Models / Components
- HONEYWELL FC-IOCHAS-0002S I/O Chassis
- HONEYWELL FS-IOB-0002S I/O Backplane
- HONEYWELL FS-IOBUS-HB2S Horizontal I/O Bus Backplane
- HONEYWELL FC-IOBUS-HB2A I/O Bus Transfer Board
- HONEYWELL FC-IO-0002 I/O Extender Module
- HONEYWELL IO-0002 I/O Extender
- HONEYWELL Safety Manager A.R.T. I/O Modules
- HONEYWELL Safety Manager Controller
- HONEYWELL Safety Manager Communication Module
- HONEYWELL Safety Manager Power Supply Assembly
🏭 Application Summary
The HONEYWELL IOCHAS-0002S is intended for Safety Manager A.R.T. installations where multiple non-redundant I/O modules need to be mounted and interconnected in a structured rack.
Its role is mainly infrastructure: it provides the mechanical housing, I/O backplane, bus connections, and extender positions needed by the Safety Manager I/O system. Honeywell specifies the chassis for up to 18 non-redundant I/O modules.
For replacement planning, match the complete part number IOCHAS-0002S, revision, backplane arrangement, extender modules, and existing Safety Manager configuration. Matching only the rack dimensions is not sufficient to establish compatibility.
