900H01-0102 Honeywell 8-Channel Form-A Form-C Relay Module
Manufacturer: Honeywell
-
Part Number: 900H01-0102
Condition：New with Original Package
Product Type: Relay Output Modules
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Honeywell 900H01-0102 HC900 Series Module
The Honeywell 900H01-0102, also cataloged as the 900H01-0102 Relay Output Module, operates as a dedicated hardware component for discrete contact switching within Honeywell ControlEdge HC900 hybrid controller platforms. The assembly features eight physical electromechanical relay channels divided equally between Form-A and Form-C contact geometries to interface with high-current field actuators, alarms, and starters.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900H01-0102 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.72 kg |
| Dimensions | Standard HC900 Slot Profile |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | Backplane Dependent |
| Number of Outputs | 8 relay outputs (4 Form-A, 4 Form-C) |
| Relay Type | Electromechanical |
| Contact Ratings | 4 A @ 120/240 VAC or 30 VDC (resistive), 0.5 A @ 240 VAC or 30 VDC (lamp load) |
| Isolation | Galvanic isolation (contacts vs logic) |
| Failsafe Behavior | User-defined state on communication loss |
Industrial Control & Drives Architecture
The 900H01-0102 leverages specific backplane bus communication velocity parameters to process status updates during active controller scans. Local bus traffic synchronizes the eight mechanical contact pairs while maintaining deterministic network execution across the HC900 platform. Galvanic isolation barriers physically separate the internal digital logic circuits from the external 120/240 VAC line voltages, preventing cross-channel electrical noise or transient voltage spikes from corrupting the primary processing backplane.
Frequently Asked Questions
Q: How does the module handle output states if the main processor encounters a communication failure?
A: The module executes a pre-configured, user-defined failsafe state. Hardware channels can be set to hold their last known state, transition to an all-de-energized state, or transition to a specific safe state upon detection of a communication loss.
Q: What are the restrictions regarding online card replacement within an active rack?
A: The 900H01-0102 features a hot-swappable design, meaning the module can be extracted and inserted into the module rack slot while the remaining I/O chassis is energized without interrupting or crashing the backplane bus communications.
Field Installation Guidelines
- Verify that the total inductive or resistive load connected across the contacts does not exceed the maximum rating of 4 A at 240 VAC to prevent contact welding.
- Route high-voltage AC output wiring through distinct, separate wire ducts away from low-voltage DC analog or sensor signaling lines within the enclosure.
- Connect external suppression circuits (such as RC snubbers for AC loads or diodes for DC inductive loads) directly across the field device terminals to extend mechanical relay contact life.
- Confirm that the module is completely seated and the chassis latch is fully engaged to ensure continuous ground and backplane bus connection stability.