GE IS420YDOAS1B Discrete Output Module

Product Description

The IS420YDOAS1B is a 16-channel discrete output module developed by General Electric for the Mark VIe control system. It delivers 48 VDC rated load voltage with a 10 to 60 VDC operating range, sourcing up to 0.5 A per point. The module is designed for driving field devices such as solenoids, indicators, and contactor coils. Each output channel is individually protected against overcurrent and short-circuit conditions. The design supports surface-mount installation and is suitable for high-density panel configurations.

Output Characteristics

The module provides 16 isolated discrete output points. Each point supports a maximum load current of 0.5 A continuously, with an inrush capability of 1.5 A for up to 100 ms to accommodate inductive loads. Off-state leakage current is limited to 0.1 mA or less, ensuring reliable turn-off of connected devices. The wide voltage range of 10 to 60 VDC allows the same module to be used across multiple voltage levels without reconfiguration.

Electrical Specifications

Physical and Shipping Information

The module has a compact form factor with estimated shipping dimensions of 5.8 x 12.3 x 8.3 cm and weighs 0.35 kg. It is manufactured in the USA and shipped from Xiamen, China. The surface-mount design enables direct installation on panel substrates without requiring a traditional rack slot. The small footprint supports high-density I/O layouts in control cabinets.

Compatibility and System Context

The IS420YDOAS1B is part of the GE Mark VIe distributed control system I/O family. It interfaces with the system controller via the IONet communication link. The module is configured and diagnosed through the ToolboxST software. No manual DIP switch addressing is required; node identification is handled automatically by the controller. This module is not compatible with Mark VI or Mark V systems due to differences in communication protocol and backplane signaling.

Configuration and Monitoring

Each output channel can be individually configured for pulse testing or steady-state operation. The module supports coil monitoring functionality when used with compatible relay or coil monitor accessories. This allows detection of open-circuit or shorted-load conditions on each output. Diagnostic status is reported back to the controller for alarm generation and maintenance planning.

Frequently Asked Questions

Q: What is the maximum voltage that can be applied to the IS420YDOAS1B outputs?

A: The module supports a voltage range of 10 to 60 VDC, with a rated load voltage of 48 VDC. Applying voltage outside this range may damage the module or cause unreliable operation.

Q: Can the IS420YDOAS1B be used with 24 VDC field devices?

A: Yes, the 10 to 60 VDC range covers 24 VDC systems. Each output point can source up to 0.5 A continuously at any voltage within the specified range.

Q: Is the IS420YDOAS1B hot-swappable?

A: The original data provided does not confirm hot-swap capability for this specific model. Do not remove or insert the module under power without consulting the applicable Mark VIe system manual for your configuration.

 Other Attributes

• Series: GE Multilin 350 Feeder
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The GE General Electric Mark VI 

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