Description

Honeywell 900RR0-0300 HC900 Redundant CPM Rack

Configured for redundant controller processor mounting in the Honeywell HC900 Control System, the Honeywell 900RR0-0300 (900RR0-0300 Redundant CPM Rack) provides direct physical support and electrical interconnection for redundant CPM hardware assemblies.

Hardware Specifications

Parameter	Specification
Model	900RR0-0300
Brand	Honeywell
Product Type	Redundant CPM Rack
Series	HC900
Origin	USA
Weight	1.7 kg
Dimensions	13.7 x 26 x 5.4 cm
Operating Temp	0 deg C to +60 deg C (32 deg F to 140 deg F)
Extended Operating Temp	-40 deg C to +70 deg C
Power Consumption	24 VDC power input
Relative Humidity	5% to 95% non-condensing
Function	Redundant CPM Rack Assembly
Tariff Code	8537101190

Process Control Hardware Integration Features

The Honeywell 900RR0-0300 functions as a mechanical and electrical rack assembly for HC900 redundant CPM configurations. It provides the mounting structure and internal connections required for controller processor modules operating in redundant arrangements.

The rack assembly supports controlled power distribution through a 24 VDC input supply interface. In addition, the physical rack design maintains module alignment and backplane connection integrity during system operation.

For HC900 process control architectures, the rack supports deterministic module communication paths between controller components. Therefore, proper installation maintains stable backplane signal routing and controller redundancy operation.

The HC900 platform uses modular control hardware design principles. However, the 900RR0-0300 itself does not provide field signal conversion, HART communication, or FOUNDATION Fieldbus interface functions.

Frequently Asked Questions

Q: What is the primary function of the Honeywell 900RR0-0300?

A: The 900RR0-0300 is a redundant CPM rack assembly that provides mechanical mounting and electrical interconnection for redundant CPM controller hardware within the HC900 system.

Q: What power input does the 900RR0-0300 require?

A: The rack assembly uses a 24 VDC power input interface according to the provided technical specifications.

Q: Can the 900RR0-0300 operate in extended temperature environments?

A: Yes. The specified extended temperature range is -40 deg C to +70 deg C. Standard operating temperature is 0 deg C to +60 deg C.

Field Installation Guidelines

• Install the 900RR0-0300 in the designated HC900 control cabinet location according to system rack layout requirements.
• Verify that the mounting structure provides adequate mechanical support before installing CPM modules.
• Confirm 24 VDC supply polarity and grounding before connecting power wiring.
• Keep power cables separated from high-voltage switching conductors and high-noise sources to reduce electrical interference.
• Maintain proper cable routing and avoid excessive bending stress on backplane and power connections.
• Use appropriate cabinet grounding practices to maintain signal reference stability.
• Inspect rack connectors for contamination or mechanical damage before module insertion.
• Confirm redundant CPM module alignment before system power-up and controller initialization.

Specifications

• Brand: Honeywell

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems