Designing Power and Communication Redundancy
Design control-system redundancy by mapping shared dependencies, separating power and network paths, defining failover behavior, exposing degraded operation, and proof-testing every tolerated fault.
Manufacturer: Omron
Product No.: G9SX-ADA222-T15-RC
Country of origin:Japan
Product Type: Flexible Safety Units
Payment: T/T, Western Union
Weight: 1500g
Shipping port: Xiamen
Warranty: 12 months
Managing complex safety control loops across automated machinery requires robust logic processing, which the Omron G9SX-ADA222-T15-RC Advanced Safety Unit executes with solid-state precision. This flexible safety controller integrates logical AND connection functions to facilitate advanced safety networking across distributed modules without the need for a safety PLC. Outfitted with high-speed P-channel MOS FET transistor outputs, it delivers long operational life and eliminates the mechanical wear associated with traditional relay-based safety units.
Designed for flexible safety architectures, this device provides instantaneous and configured OFF-delayed outputs, supporting complex stop category requirements. The inclusion of modern spring-cage terminal blocks ensures reliable electrical contact under severe industrial vibrations, making it an ideal choice for high-vibration manufacturing and assembly environments.
| Parameter | Specification |
|---|---|
| Manufacturer | Omron |
| Model Number | G9SX-ADA222-T15-RC |
| Device Type | Advanced Safety Unit |
| Rated Supply Voltage | 24 VDC |
| Operating Voltage Range | -15% to 10% of rated supply voltage (20.4 to 26.4 VDC) |
| Power Consumption | 4 W max. |
| Instantaneous Safety Outputs | 2 semiconductor outputs (P-channel MOS FET) |
| OFF-Delayed Safety Outputs | 2 semiconductor outputs (P-channel MOS FET) |
| Auxiliary Outputs | 2 semiconductor outputs (PNP transistor, 100 mA max.) |
| Max. OFF-Delay Time | 15 seconds |
| Output Load Current (Safety) | Using 2 outputs or less: 1.0 A DC max. / Using 3 outputs or more: 0.8 A DC max. |
| Safety Input Impedance | Approx. 2.8 kohms |
| Terminal Connection Type | Spring-cage (tension clamp) |
| Vibration Resistance | 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude) |
| Weight | 0.2 kg |
| Shipping Weight (Calculated) | 1.5 kg (including structural export packaging) |
Based on field commissioning experiences, several critical system-level factors should be accounted for during design and deployment:
The "RC" in the model designation indicates spring-cage terminals. If replacing an older "RT" screw-terminal version, the internal logical circuit, diagnostics, and auxiliary output wiring configurations remain completely identical. This allows for a direct hot-swap of the unit body if maintaining the same base wiring layout, but require verifying terminal header compatibility.
Because safety outputs are solid-state P-channel MOS FETs, they exhibit a small OFF-state leakage current. When interfacing these safety outputs with highly sensitive PLC digital inputs or micro-relays, ensure the input load draws enough current to pull the voltage below the downstream device's OFF threshold. Additionally, when using multiple units in close proximity within unventilated panels, keep a 10 mm lateral gap to prevent heat build-up when running at maximum auxiliary and safety output current ratings.
When configuring logical AND connections between multiple G9SX units, ensure the communication lines linked to L1 and L2 terminals are properly shielded and kept away from high-voltage motor cables to avoid noise-induced safety trips. Ensure the feedback and reset loop (terminals T31, T32 for manual reset, or T31, T33 for auto reset) has verified contact continuity before energizing the module; a startup mismatch will trigger an internal loop fault, locking out the unit.
CRITICAL WARNING: ELECTRICAL HAZARD
Always isolate all primary power distribution circuits and auxiliary supply voltages before mounting, wiring, or configuring safety systems. Solid-state outputs can retain charge under specific circuit failure modes. Verify zero potential on all terminals before commencing physical maintenance.
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Returns & Warranty

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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Japan
|