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Product Name: ANALOG OUTPUT MODULE
Brand Name: GE
Model Number:IS220PAOCH1A
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
General Electric |
Model Number: |
IS220PAOCH1A |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
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Parameter |
Specification |
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Part Number |
IS220PAOCH1A |
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Manufacturer |
General Electric (GE) – GE Grid Solutions / GE Energy |
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Series |
Mark VIe / Mark VIeS Speedtronic |
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Product Type |
Analog Output I/O Pack (PAOC – Analog Output Control) |
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Output Channels |
8 simplex isolated 0–20 mA current loop outputs |
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Resolution |
16-bit Digital-to-Analog Converter (DAC) |
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Load Driving Capacity |
Up to 900 Ω maximum @ 20 mA (18 V compliance) |
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Output Accuracy |
±0.5% over -30°C to +65°C； ±0.25% typical at 25°C and 500 Ω load |
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Current Feedback |
16-bit ADC per channel (50 Ω sense resistor on terminal board) |
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Communication |
Dual independent 10/100 Mbps Ethernet ports (IONet), RJ-45 connectors |
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Isolation |
2500 V AC galvanic isolation between field circuits and logic |
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Power Input |
24–28 V DC nominal (26.6–29.4 V range) via 3-pin power connector |
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Power Consumption |
7.5 W maximum |
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Operating Temperature |
-30°C to +65°C (PAOCH1A)； -40°C to +70°C (PAOCH1B) |
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Storage Temperature |
-40°C to +85°C |
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Dimensions (H × W × D) |
6x12.8x8.2cm |
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Weight |
0.44kg |
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Mounting |
Direct plug-in to terminal board DC-37 pin connector |
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Compatibility |
TBAOH1C, STAH1A, STAH2A terminal boards |
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Redundancy |
Simplex only (I/O pack level)； supports TMR at system level |
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Hazardous Rating |
Non-incendive Class I, Division 2, Groups A, B, C, D |
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Country of Origin |
United States (USA) |
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Software |
ToolboxST / ControlST V04.06 and later |
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Status |
In Stock |
The IS220PAOCH1A is a high‑performance Analog Output I/O Pack (PAOC) developed by GE for the Mark VIe Speedtronic control platform. The IS220PAOCH1A serves as a distributed I/O module, converting digital commands from the controller into eight independent 0–20 mA analog output signals for critical field actuators. Each of the eight channels features a 16‑bit digital‑to‑analog converter, real‑time current feedback via a 16‑bit analog‑to‑digital converter, and galvanic isolation. The IS220PAOCH1A communicates over dual redundant Ethernet networks (IONet) and is fully compatible with TBAO or STAO terminal boards, delivering reliable, high‑precision analog control for demanding turbine and industrial automation applications.
Gas turbine control systems – fuel valve positioning, flow regulation, combustion optimization
Steam turbine systems – governor control, pressure regulation, temperature management
Power generation – thermal, combined‑cycle, and nuclear auxiliary systems
Wind turbine pitch control – blade angle adjustment and power curve optimization
Compressor stations and pump control – variable speed drive (VSD) interfaces
Oil and gas processing – refinery operations and pipeline automation
Industrial automation – continuous process control for critical manufacturing
Hazardous area installations – non‑incendive Class I, Division 2 environments
8 high‑density analog outputs: Delivers up to eight independent 0–20 mA current loop channels, significantly reducing I/O module count and cabinet space requirements.
16‑bit DAC resolution: Provides precise, fine‑grained analog control for smooth actuator positioning and elimination of control step‑induced mechanical wear on critical assets.
Integrated current feedback monitoring: On‑board 16‑bit analog‑to‑digital converter per channel measures actual output current for real‑time health verification and diagnostics.
Suicide relay per output channel: Each analog output includes a normally open mechanical relay that can electrically disconnect the output under fault conditions for fail‑safe operation.
Dual redundant Ethernet connectivity: Two independent RJ‑45 10/100 Mbps Ethernet ports (ENET1 / ENET2) enable active‑active IONet communication, eliminating reliance on a central backplane and supporting simplex, dual, or triple‑modular‑redundant system architectures.
Full galvanic isolation: 2500 V AC isolation between field circuits and logic electronics protects against ground loops, high‑EMI environments, and industrial electrical transients.
Continuous built‑in diagnostics: Comprehensive power‑up and run‑time self‑tests, including RAM, flash memory, power supply monitoring, temperature sensing, open/short circuit detection, and ID verification between processor and acquisition boards.
Thermal derating guidelines: Supports high‑compliance output up to 900 Ω load, with application‑specific maximum ambient temperature limits defined in the product documentation.
ToolboxST software configuration: All parameters (output range, engineering unit scaling, DA error threshold, dither amplitude, offline behavior) are configured via the ToolboxST Component Editor.
Converts digital setpoint commands from the Mark VIe controller into eight independent 0‑20 mA analog current signals, delivering precisely regulated outputs to field actuators such as I/P converters, fuel valves, servo valves, VFDs, and positioners.
Provides real‑time current feedback via a 16‑bit analog‑to‑digital converter on each channel, comparing commanded versus actual output to verify the health of the digital‑to‑analog converter circuit.
Electrically disconnects any unhealthy output via its dedicated suicide relay when the output exceeds 30 mA or when other diagnostic thresholds are exceeded, preventing unintended actuator motion.
Performs continuous power‑up and run‑time self‑diagnostics, including RAM, flash memory, Ethernet port integrity, internal ±15V power supplies, and ID verification of the acquisition board and terminal board.
Communicates with the Mark VIe controller via dual redundant 100 Mbps Ethernet ports (IONet) in an active‑active configuration, ensuring high availability and eliminating the need for a central backplane.
Supports configurable offline behavior: when communication with the controller is lost, outputs can be set to power‑down mode (open suicide relays, drive zero current), hold last valid value, or go to a pre‑determined safe output value.
Reports diagnostic status (including pack temperature, individual output feedback, suicide relay status, and link health) back to the controller via the L3DIAG_PAOC and LINK_OK_PAOC variables for proactive fault management.
Q1: What is the IS220PAOCH1A used for?
A1: The IS220PAOCH1A is an Analog Output I/O Pack (PAOC) for GE Mark VIe systems, converting controller digital commands into eight 0–20 mA analog output signals for driving fuel valves, I/P converters, and actuators in turbine control applications.
Q2: How many analog output channels does the IS220PAOCH1A support?
A2: The IS220PAOCH1A supports eight independent, simplex 0–20 mA current loop outputs, each with 16‑bit resolution and the ability to drive loads up to 900 Ω at 18 V compliance.
Q3: What terminal boards are compatible with the IS220PAOCH1A ?
A3: The IS220PAOCH1A is compatible with analog output terminal boards including IS200TBAOH1C, IS200STAOH1A, and IS200STAOH2A, connecting via a DC‑37 pin connector located on the underside of the pack.
Q4: Can the IS220PAOCH1A be used in redundant control systems?
A4: Yes. While the IS220PAOCH1A itself is a simplex pack, it can be deployed in redundant system configurations. In a Triple Modular Redundant (TMR) Mark VIe system, up to three PAOC modules work in parallel to provide voted analog outputs.
Q5: What diagnostic features does the IS220PAOCH1A include?
A5: The IS220PAOCH1A performs continuous self‑diagnostic tests including RAM/flash checks, power supply monitoring, terminal board ID verification, output feedback comparison to commanded current, temperature sensing, and individual suicide relay status monitoring for each of the eight channels.
Inguiry Now: [email protected]
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