The GDD-1N is an NPN-output sensor option for elevator control applications. The illustrated unit has a cylindrical black housing, a front optical window and an integral cable. Match the sensor model and output logic to the receiving controller.
| Item | Specification |
|---|---|
| Model | SH-GDD-1N / GDD-1N |
| Output type | NPN |
| Working supply selection | DC 12–24 V |
| Output logic | Low-level switching output; match the controller input |
| Illustrated construction | Cylindrical housing with front optical window and integral cable |
| Model | Output type | Working supply selection | Switching logic |
|---|---|---|---|
| SH-GDD-1N | NPN | DC 12–24 V | Low-level output |
| SH-GDD-1P | PNP | DC 12–24 V | High-level output |
GDD-1N uses an NPN output; GDD-1P uses a PNP output. Choose the type required by the control input.
Match the output logic and controller wiring before replacement; the model suffix determines the output selection.
The working supply selection is DC 12–24 V. Confirm the actual sensor label and circuit before connection.
Check the fixing arrangement, optical operating position, cable routing and connection requirements for the installation.
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