GE IS220PDIOH1B Mark VIe Discrete I/O Pack

IS220PDIOH1B GE Mark VIe Discrete I/O Pack

Product Introduction

The IS220PDIOH1B belongs to GE’s Mark VIe series. It serves as a discrete I/O pack for turbine control systems. Specifically, it manages wind, steam, and gas turbine automated drive assemblies. This unit marks a clear improvement over earlier Mark series iterations. Those older versions only supported steam and gas turbines.

Furthermore, the IS220PDIOH1B introduces GE’s patented Speedtronic technology. Speedtronic first appeared with Mark I in the late 1960s. However, this model brings that proven technology to a broader range of applications. The Mark VIe platform supports simplex, dual, and triple-redundant systems. High-speed networked I/O ensures reliable performance.

Technical Specifications

Below are the key technical details for the IS220PDIOH1B:

• Functional Part Number: IS220PDIOH1B

• Original Manufacturer: General Electric Speedtronic

• Features: Two Ethernet ports

• Nominal Voltage Rating: 28.0 Vdc

• Contact Voltage Outputs: 32.0 Vdc

• Minimum Voltage Rating: 27.4 Vdc

• Dimensions: W4.5 in x H3.5 in x D2.25 in

• Net Weight: Less than 2 lbs (0.9 kg)

• Shipping Weight: 2.5 lb (1.15 kg)

• Chassis Style: Vented

• Ambient Temperature Rating: –30°C to +65°C (–22°F to +149°F)

Additionally, the IS220PDIOH1B contains a local processor and a data acquisition board. The entire base printed circuit board has a conformal coating. This coating protects against daily wear and tear. Therefore, the unit performs reliably in harsh industrial environments.

Hardware Features and Indicators

The IS220PDIOH1B includes several front panel LED indicators:

• Two LEDs for the Ethernet ports (one per port)

• One power LED for unit status

• One “attn” (attention) LED for diagnostics

• Additional LEDs related to relay connections

Moreover, the electronics technology for Mark VIe I/O packs debuted in 2004. While that base technology is now obsolete, the IS220PDIOH1B remains fully functional and supported. Users should plan for long-term lifecycle management.

Terminal Board Compatibility and Wiring

The IS220PDIOH1B works with specific terminal boards. These boards are labeled as intrinsically safe apparatus relay contact terminal boards. Common compatible models include:

• ISx0yTDBSH2A

• ISx0yTDBSH8A

• ISx0yTDBTH2A

• ISx0yTDBTH8A

When using TDBS or TDBT boards, the IS220PDIOH1B provides twenty-four field terminals. All positive terminals are labeled as contact-wetting inputs. Terminals differ between negative and positive connections. Always refer to the official datasheet for exact pinout details.

Follow these field wiring guidelines:

• Use recommended wire sizes as specified in GE documentation

• Apply correct screw torque values

• Verify minimum voltage (27.4 Vdc) before power-up

• Nominal operating voltage is 28.0 Vdc

Hazardous Location Approval

The IS220PDIOH1B holds approvals for hazardous locations. Specifically, combinations of this I/O pack with approved terminal boards meet safety standards. This feature makes the unit suitable for oil, gas, and chemical applications. Always check local regulations before installation.

Installation Guidelines

Follow these steps to install the IS220PDIOH1B correctly:

1. Power down the Mark VIe system completely.

2. Mount the compatible terminal board (TDBS or TDBT series).

3. Align the IS220PDIOH1B with the terminal board connectors.

4. Press firmly until the unit seats properly.

5. Secure any locking mechanisms on the terminal board.

6. Connect field wiring to the twenty-four terminals.

7. Restore power and check LED indicators.

Meanwhile, use an anti-static wrist strap during handling. The IS220PDIOH1B is not hot-swappable. Therefore, always de-energize the rack before removal or installation.

Packaging List

• One IS220PDIOH1B discrete I/O pack

• One anti-static protective bag

• One quick installation guide (connector overview)

Note: Certificates and warranty documents are not included in the package.

Shipping Method: Fedex, UPS, DHL

Frequently Asked Questions (FAQ)

1. Which control systems work with the IS220PDIOH1B?
The IS220PDIOH1B works exclusively with GE’s Mark VIe control system. It supports wind, steam, and gas turbine applications. The system can run in simplex, dual, or triple-redundant configurations.

2. Does the IS220PDIOH1B have Ethernet connectivity?
Yes. The IS220PDIOH1B includes two Ethernet ports. These ports connect to the high-speed I/O network. LED indicators on the front panel show port status.

3. What is the nominal voltage for this I/O pack?
The nominal voltage rating is 28.0 Vdc. The minimum operating voltage is 27.4 Vdc. Contact voltage outputs are rated at 32.0 Vdc.

4. Is the IS220PDIOH1B approved for hazardous locations?
Yes. The IS220PDIOH1B is approved for hazardous locations. However, this approval applies only when the I/O pack is used with approved terminal board combinations. Always verify your specific configuration.

5. How many field terminals does the IS220PDIOH1B provide?
When used with TDBS or TDBT boards, the IS220PDIOH1B provides twenty-four field terminals. All positive terminals are labeled as contact-wetting inputs. Negative terminals have different labeling. Refer to the datasheet for full details.