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Is220pclah1a Rev C

IS220PCLAH1A, REV C - Core Analog I/O Module

IS220PCLAH1A, REV C - Core Analog I/O Module IS220PCLAH1A, REV C - Core Analog I/O Module

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IS220PCLAH1A, REV C - Core Analog I/O Module comes in UNUSED as well as REBUILT condition.

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SPECIFICATIONS:

Part Number: IS220PCLAH1A, REV C
Manufacturer: General Electric
Series: Mark VIe
Product Type: Core Analog I/O Module
Number of channels: 4
A/D Converter Resolution: 16-bit
Input Impedance Voltage mode: >200 kΩ
Power Supply Input Voltage: 28 V DC
Power Consumption: 19.8 W max
Operating Temperature: –30°C to +65°C
Repair: 3-7 Days
Country of Origin: USA
Availability: In Stock
Manual: GEH-6721L

FUNCTIONAL DESCRIPTION:

IS220PCLAH1A, REV C is a Core Analog I/O Module manufactured and designed by General Electric as part of the Mark VIe Series used in distributed control systems. The Core Analog I/O (PCLA) and associated Core Analog terminal boards (SCLS and SCLT) provide the essential analog signal inputs and outputs required for operating aero-derivative gas turbines. These boards support thermocouple inputs, RTD inputs, voltage inputs, and 4–20 mA current loop inputs and outputs. The PCLA is compatible with various control system configurations, including dual controller TMR I/O, dual controller simplex I/O, and simplex controller TMR I/O setups. A single SCLT terminal board signals one or up to three connected PCLA fans.

The PCLA module serves as the electrical interface between one or two Ethernet I/O networks and the terminal board. It features a shared CPU board used across all Mark VIe distributed I/O systems. Power is supplied to the module via a 28 V DC connector labeled P1, along with dual RJ-45 Ethernet ports for network connectivity.
Field device connections are made through Euro-style box terminals—48 on the SCLS edge and 72 on the SCLT edge. The SCLS board connects to the system using 96-pin (J3) and 48-pin (J4) connectors. A single 68-pin cable links the SCLS (via its J2 connector) to the SCLT board through the JR, JS, or JT connectors.

INSTALLATION:

  • Mount the SCLS board using the four corner mounting holes.
  • Attach the PCLA directly to the terminal board via connectors J3 and J4.
  • Secure the PCLA using the two side mounting holes.
  • Mount the SCLT and plastic insulator on a DIN rail or bolt them to a cabinet using a sheet metal assembly.
  • Use a single 68-pin cable to connect J2 on SCLS to JR/JS/JT on the SCLT board.
  • For simplex setups, connect JR on SCLT to J2 on SCLS; for TMR, use JR, JS, and JT via R, S, and T controller networks, respectively.
  • Connect one or two Ethernet cables based on the setup; use ENET1 for the R controller in dual-network configurations.
  • PCLA auto-negotiates Ethernet ports, but cable connections should match the SCLT network path (e.g., JR to R IONet).
  • Ensure shield wire terminals on SCLS/SCLT are grounded via the mounting sheet metal.
  • Fully seat and finger-tighten cable mounting screws on PCLA and SCLT to ensure proper grounding and signal integrity.
  • After powering through the P1 connector, verify power and Ethernet status LEDs on the PCLA.

OPERATION:

The PCLA module consists of two integrated circuit boards: the processor board, common to all Mark VIe distributed I/O systems, and the BCLA acquisition board. In a simplex configuration, the BCLA interfaces with an SCLS and, optionally, an SCLT. In TMR systems, three SCLS-PCLA sets connect to a single SCLT. The graphic below illustrates a typical block diagram of the PCLA and its associated terminal boards.

WOC has the largest stock of GE Distributed Control System Replacement Parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available around the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

How do I verify the power and Ethernet status of the module?

After powering the module via the P1 connector, verify the power and Ethernet status LEDs on the PCLA module.

What is the function of the 68-pin cable in the configuration?

The 68-pin cable connects the SCLS and SCLT boards, allowing for signal transmission between the two in both simplex and TMR configurations.

How do I connect the SCLS board to the SCLT board?

Use a single 68-pin cable to connect the J2 connector on the SCLS board to the JR/JS/JT connectors on the SCLT board.