GE IS220PAICH1A Analog I/O Pack Mark VI

IS220PAICH1A GE Mark VI Analog I/O Pack

Product Introduction

The IS220PAICH1A belongs to GE’s Mark VI Speedtronic turbine control series. This Analog I/O Pack handles both simplex and triple modular redundant (TMR) systems. Specifically, it works with gas, steam, and wind turbine applications. The module connects to I/O terminal boards such as the IS200STAIH1A, IS200STAIH2A, and IS20TBAIH1C.

Mark VI systems support up to nine 21-slot VME racks. They process all I/O data within 40 milliseconds, including voting. Software Implemented Fault Tolerance (SIFT) handles input voting in software. Each control module receives inputs via the VCMI board from the backplane and IONet.

Key Technical Specifications

The IS220PAICH1A offers 12 channels in total. Ten channels serve as inputs, while two channels act as outputs. Both outputs support 0-20 mA current loops. The power supply requires 28 VDC nominal, with a minimum of 27.4 VDC and a maximum of 28.6 VDC. Current draw is 0.49 A DC.

Input specifications include:

• Channels 1-8: 10 V DC max, 20 mA DC max

• Channels 9-10: 5 V DC max, 20 mA DC max

Output specifications:

• 16.3 V DC max at 20 mA DC

• Analog transmitter supply: 25.2 V DC max at 21 mA DC

Environmental and Safety Certifications

The IS220PAICH1A carries multiple hazardous location approvals. These include:

• Class I, Division 2, Groups A, B, C, D (ANSI/ISA 12.12.01-2015)

• Class I, Zone 2, Group IIC

• ATEX Zone 2, Group IIC

• Non-hazardous locations (UL E207865)

Ambient temperature range spans -22°F to 149°F (-30°C to 65°C). The UL DEMKO 12 ATEX 1114875X certification also applies. Always verify local requirements before installation.

Hardware Features and Indicators

Four LED indicators sit on the front panel. One I/O port is located on the bottom edge. The module uses a conformal coating on its PCB for chemical protection. This coating extends service life in harsh environments.

Mounting occurs inside a VME rack. Typical racks have 13 or 21 slots. For TMR systems, each module works with its own control module, I/O net, and main processor card.

Direct Connectivity Benefits

Direct sensor and actuator communication reduces interposing instrumentation. Consequently, many single-point failure risks are eliminated. Operational reliability increases while long-term maintenance costs drop.

Diagnostics can directly interrogate connected devices. This gives optimal effectiveness for performance evaluation. Additionally, spare parts inventories shrink because peripheral instrumentation is no longer needed.

Installation Guidelines

First, confirm your VME rack has an available slot. Next, set the IS220PAICH1A into the rack carefully. Ensure the 28 VDC power supply meets the 27.4-28.6 VDC range. Then connect the I/O port to the appropriate terminal board. After wiring, apply power and check the four front LEDs.

For TMR systems, install three identical modules for redundancy. Meanwhile, for simplex systems, a single module suffices. Finally, verify communication through the IONet and backplane.

Transition Words for Clarity

Specifically, the IS220PAICH1A excels in turbine environments. Moreover, its hazardous location certifications broaden deployment options. Furthermore, direct sensor connectivity simplifies system design. Therefore, maintenance becomes faster and less frequent. Additionally, the conformal coating adds a layer of protection.

Why Choose the IS220PAICH1A?

This Analog I/O Pack reduces overall system complexity. It eliminates many external instruments, which lowers costs. The IS220PAICH1A also supports both legacy and modern Mark VI setups. Because it carries multiple safety certifications, you can use it in diverse locations.

The module’s 10 inputs and 2 outputs cover typical analog monitoring needs. For instance, pressure, temperature, and position signals work well on the input channels. Meanwhile, the two 0-20 mA outputs can drive actuators or indicators.

Packaging List

• IS220PAICH1A Analog I/O Pack (1 unit)

• Anti-static protective bag (1 piece)

• Foam inserts for shipping protection (1 set)

• Cardboard shipping box (1 piece)

Note: No certificates or warranty documents are included in this package.

Shipping Information

All orders ship via FedEx, UPS, or DHL. Tracking numbers are provided within 24 business hours.

Frequently Asked Questions (FAQ)

1. What terminal boards work with the IS220PAICH1A?
It works with IS200STAIH1A, IS200STAIH2A, and IS20TBAIH1C terminal boards.

2. Can I use this module in a simplex system?
Yes. The IS220PAICH1A supports both simplex and TMR architectures.

3. What is the nominal supply voltage required?
Nominal voltage is 28 VDC. Minimum is 27.4 VDC, and maximum is 28.6 VDC.

4. How many outputs does this pack provide?
It provides two 0-20 mA current loop outputs.

5. Is the IS220PAICH1A approved for hazardous areas?
Yes. It carries Class I Division 2, Class I Zone 2, and ATEX Zone 2 certifications.