Overview
Configured for discrete contact output execution in GE industrial control platforms, the General Electric IS220YDOAS1A (IS220YDOAS1A SIL Discrete Output I/O Pack) provides direct electrical switching for field-connected output circuits. The module operates from a 28 V DC supply and supports output loads up to 5 A at 250 V AC. It also provides 1500 V DC channel-to-bus isolation for electrical separation between output circuits and the control interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS220YDOAS1A |
| Brand | General Electric |
| Product Type | SIL Discrete Output I/O Pack |
| Product Parameters | I/O Pack |
| Origin | USA |
| Manufacturer | General Electric |
| Weight | 0.86 kg |
| Dimensions | 4 x 16 x 20.2 cm |
| Operating Temp | -20 deg C to +60 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Humidity | 5 – 95 % RH, non-condensing |
| Power Supply | 28 V DC |
| Power Consumption | <= 10 W typical |
| Output Rating | 5 A at 250 V AC |
| Isolation | 1500 V DC channel-to-bus |
| Tariff Code | 8537101190 |
Industrial I/O Interface Characteristics
The IS220YDOAS1A supports discrete output functions through direct electrical interfaces between the control system and connected field circuits. Its channel-to-bus isolation rating of 1500 V DC helps separate output-side electrical conditions from the system interface.
In addition, the 28 V DC supply requirement and typical consumption of no more than 10 W define the module power interface requirements. The hardware form factor also supports compact I/O installation where controlled output switching and electrical isolation are required.
Frequently Asked Questions
Q: What is the primary function of the IS220YDOAS1A?
A: The IS220YDOAS1A is a SIL discrete output I/O pack developed for contact output and discrete field circuit switching.
Q: What output load can the module support?
A: The specified output rating is 5 A at 250 V AC.
Q: What electrical isolation does the I/O pack provide?
A: The module provides 1500 V DC channel-to-bus isolation between the output circuitry and the control system interface.
Field Installation Guidelines
Verify that the installation environment remains within the specified temperature and humidity limits before mounting the I/O pack. Connect the 28 V DC power supply according to the applicable system wiring documentation.
Route output wiring separately from high-noise power conductors where practical. Maintain correct conductor termination and insulation practices for circuits carrying the specified output load. In addition, inspect grounding and shielding arrangements according to the complete control system installation requirements.
Do not exceed the specified 5 A at 250 V AC output rating. Finally, isolate system power before connecting or disconnecting field wiring unless the applicable GE system documentation explicitly permits energized maintenance procedures.
