Honeywell 900G03-0202 Digital Input Module: 16-Channel AC Input for Series 9000
The Honeywell 900G03-0202 is a 16-channel AC digital input module for Series 9000 control systems. It accepts 80–264 VAC externally powered signals. Two isolated groups of 8 inputs each simplify wiring. A green LED shows channel ON state. Controller logic can invert the state when needed. A blinking green status LED indicates scanning. A red status LED signals diagnostics. This module suits legacy and new installations where reliable AC input sensing is critical.
Technical Specifications
Brand: Honeywell
Model: 900G03-0202
Series: 9000 Series
Module Type: AC Digital Input (sinking)
Inputs per module: 16, arranged as 2 groups of 8
Input Voltage Range: 80 VAC to 264 VAC
Peak Voltage: 264 VAC
AC Frequency: 47 Hz to 63 Hz
Galvanic Isolation: 2 groups of 8 inputs, 350 VAC max between groups
ON Voltage Level: 75 VAC
OFF Voltage Level: 20 VAC
Input Impedance: 48 kΩ nominal
Input Current: 1 mA nominal at 120 VAC / 60 Hz; 2 mA nominal at 230 VAC / 50 Hz
Minimum ON Current: 0.3 mA
Maximum OFF Current: 0.2 mA
OFF to ON Response: 4 ms + 1.5 line cycles max
ON to OFF Response: 4 ms + 2 line cycles max
Note: Measurement range, frequency response, sensitivity, linearity, resolution, temperature range, environmental tolerance, and anti-interference capability are system-dependent. Please refer to the Series 9000 controller manual for full environmental ratings. The module itself is designed for industrial cabinet mounting.
Installation Guide
- Mount the module in a Series 9000 rack or compatible backplane.
- Verify power is off before wiring.
- Connect AC power between the common terminal and each input.
- Use separate commons for each group of 8 inputs.
- Apply 120 VAC or 240 VAC as required. The input turns ON when voltage exceeds 75 VAC.
- Observe polarity and isolation limits (350 VAC max between groups).
- Check that the green channel LED lights when input is active.
- Confirm the blinking green status LED during scanning.
Commissioning and Maintenance
- Use the controller to invert input state if logic requires.
- Monitor the red diagnostic LED. A steady red means a fault exists.
- Replace module only after confirming field wiring and power.
- No calibration is needed. The module is factory-set.
- Keep spare modules on hand for critical loops.
Compatibility Notes
This module fits Honeywell Series 9000 controllers. It works with existing 9000 racks and power supplies. The 16 sinking inputs interface with AC field devices such as pushbuttons, limit switches, and relay contacts. For mixed AC/DC systems, verify common wiring before installation. The module is not a drop-in replacement for other series without checking backplane pinouts.
Certifications and Compliance
Honeywell builds the 900G03-0202 to industrial standards. Contact Oiltech Controls for specific certificate copies. Common certifications for Series 9000 modules include CE and UL listings. Always confirm local code compliance before installation.
Diagnostic Capabilities
The module provides two diagnostic paths. First, each channel has a green LED that shows input ON state directly. Second, module-level LEDs show health: a blinking green LED means the module is being scanned, and a red LED means diagnostics exist. Controller logic can also invert the input state to match application needs. These features help technicians trace faults quickly without extra tools.
Typical Application Scenarios
- Legacy Honeywell Series 9000 systems in process plants.
- AC pushbutton and selector switch input panels.
- Motor control center status feedback.
- Packaging and material handling lines with 120/240 VAC signals.
- Water and wastewater pump run-status monitoring.
- Building automation panels needing isolated AC input groups.
Why Buy From Oiltech Controls?
- 15+ years of industrial automation spare parts experience.
- Global shipment support via FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on all products.
- Technical verification before every shipment.
- Support for obsolete control systems.
Packing List and Warranty
- 1x Honeywell 900G03-0202 Digital Input Module
- Anti-static protective packaging
- Test report (available on request)
- 12-month warranty covering defects in materials and workmanship.
- Shipping via FedEx, UPS, or DHL with tracking.
FAQ
Q: How many inputs does this module have?
A: It has 16 sinking inputs, split into two groups of 8.
Q: What AC voltage range is supported?
A: The range is 80 VAC to 264 VAC. ON threshold is 75 VAC; OFF threshold is 20 VAC.
Q: Does the module need external power?
A: Yes. It is externally powered by the AC signal applied to each input.
Q: How do I know an input is active?
A: A green LED per channel lights when the input is ON.
Q: What does the red LED mean?
A: The red status LED means module diagnostics exist. Check wiring and power first.
Q: Can the input state be inverted?
A: Yes. Controller logic allows state inversion when necessary.
Q: What is the warranty?
A: Oiltech Controls provides a 12-month warranty.
Contact Information
Email: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923
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