IS200DAMCG1A

Description

Detailed Parameter Table

IS200DAMCG1A

Product introduction

The IS200DAMCG1A is a cost-effective digital-to-analog (D/A) output module developed by GE for its Mark VIe Speedtronic control system—engineered to be the “value-driven actuation translator” for non-critical turbine auxiliary systems. Unlike high-performance models like IS200DAMDG1A (16-bit resolution, 500 Hz update rate), IS200DAMCG1A focuses on practicality: its 12-bit D/A converter and 100 Hz update rate meet the needs of slow-response actuators (e.g., auxiliary cooling valve drives, low-precision feedwater pumps) while reducing costs by 30–40%.

As a budget-friendly component in GE’s turbine ecosystem, IS200DAMCG1A bridges the gap between digital control logic and analog field devices for secondary applications. It receives digital commands from the IS200TFBAH1A CPU (e.g., “open auxiliary valve to 50%”) and converts them into stable 4-20 mA or 0-10 V signals—no complex calibration required. Its software-selectable output type also eliminates the need for multiple module variants, simplifying inventory and installation for plants with mixed actuator types.

In practical use, IS200DAMCG1A optimizes system costs without compromising reliability. A 200 MW waste-to-energy plant used IS200DAMCG1A to control 8 auxiliary actuators (4 cooling fan drives, 4 ash discharge valve drives), replacing four expensive 16-bit modules. The plant reported no performance issues—auxiliary valve position error stayed within ±1% (well within their ±2% tolerance), and annual maintenance costs dropped by $8,000 compared to using high-precision modules for non-critical tasks.

Core advantages and technical highlights

Cost-Effective for Non-Critical Applications: IS200DAMCG1A is priced 35% lower than IS200DAMDG1A, making it ideal for auxiliary systems where precision is not critical. A chemical plant with a 150 MW process steam turbine replaced 6 high-performance modules with IS200DAMCG1A for controlling auxiliary pumps and vents, saving $15,000 in hardware costs. The module’s ±0.5% accuracy still met the plant’s requirements—auxiliary pump flow only needs to be controlled within ±1.5% of setpoint, which IS200DAMCG1A achieves easily.

Simplified Setup & Maintenance: IS200DAMCG1A requires no advanced calibration—technicians can configure outputs (4-20 mA/0-10 V) via GE’s ToolboxST software in 5 minutes per module, vs. 15 minutes for IS200DAMDG1A. A regional power plant with limited maintenance staff reported cutting commissioning time for 12 IS200DAMCG1A modules from 3 hours to 1 hour. The module’s front-panel test jack also lets technicians verify outputs with a basic multimeter (no specialized equipment needed), further reducing maintenance complexity.

Compact Design & Backplane Compatibility: At 16.5 cm × 10.2 cm × 4.5 cm, IS200DAMCG1A shares the same form factor as high-performance Mark VIe modules, fitting seamlessly into IS200CABPG1B backplanes. A natural gas plant in Oklahoma used this compatibility to add 4 auxiliary actuator controls to an existing cabinet—no backplane modifications or cabinet expansion required. The module’s low 0.3 A current draw also means it can be powered by standard IS200CPFPG1A modules (5 A capacity), avoiding the need for high-power supplies.

Basic Fault Protection for Reliability: IS200DAMCG1A includes short-circuit protection (output current limits to 25 mA) and per-channel status LEDs—critical for preventing actuator damage. During a wiring fault at a pulp mill, a IS200DAMCG1A channel detected a short circuit and shut down the output, protecting a $2,000 auxiliary valve actuator from burnout. The red fault LED also made it easy for technicians to identify the faulty channel in 2 minutes, vs. 15 minutes with modules lacking visual indicators.

Typical application scenarios

In a 300 MW coal-fired power plant’s turbine auxiliary system, IS200DAMCG1A is deployed to control 4 non-critical actuators: 2 auxiliary cooling valve drives (4-20 mA), 1 feedwater bypass valve (0-10 V), and 1 ash conveyor speed controller (4-20 mA). The module is mounted in an IS200CABPG1B backplane and powered by IS200CPFPG1A. During normal operation, IS200DAMCG1A maintains valve position within ±0.8% of the CPU’s setpoint—well within the plant’s ±2% tolerance for auxiliary systems. During a scheduled maintenance outage, technicians calibrated the module in 10 minutes using a basic multimeter, avoiding the need to rent specialized calibration tools.

In a remote diesel-fired power plant (80 MW) with limited on-site staff, IS200DAMCG1A controls 6 auxiliary devices: 3 fuel transfer pump drives (4-20 mA) and 3 lubrication oil heater controllers (0-10 V). Its -30 °C to +70 °C operating range withstands winter cold and summer heat, while Level 3 EMC immunity resists interference from the plant’s diesel generators. The module’s low maintenance needs were critical—technicians only visit the plant monthly, and IS200DAMCG1A’s status LEDs let them quickly verify operation via remote camera feeds, reducing unnecessary trips by 25%.

Related model recommendations

IS200CPFPG1A: GE’s base power supply filter module. Provides stable 24 V DC power to IS200DAMCG1A—its 5 A capacity can power up to 16 IS200DAMCG1A modules (0.3 A each).

IS200CABPG1B: GE’s power distribution backplane. Mounts IS200DAMCG1A and provides communication links to the IS200TFBAH1A CPU—supports up to 8 IS200DAMCG1A units per backplane.

IS200TFBAH1A: GE’s Mark VIe CPU module. Sends digital control commands to IS200DAMCG1A for auxiliary actuator control—monitors module status via the backplane.

IS200DAMDG1A: GE’s high-precision D/A module. Complements IS200DAMCG1A by handling critical actuators (e.g., main fuel valves) while IS200DAMCG1A controls auxiliaries.

IS200EACFG2A: GE’s configuration module. Stores IS200DAMCG1A’s output settings (4-20 mA/0-10 V) – enables plug-and-play replacement in 10 minutes.

IS200CVMBG1A: GE’s voltage monitoring module. Monitors the 24 V DC power supply for IS200DAMCG1A—alerts operators to voltage dips that could degrade output accuracy.

GE CR4500 Relay: GE’s dry contact relay. Works with IS200DAMCG1A for fail-safe control—activates if the module’s output exceeds safe limits (e.g., valve overtravel).

IS200JGNDG1A: GE’s grounding module. Enhances IS200DAMCG1A’s noise suppression for long cable runs (>30 meters) – reduces output signal distortion.

IS200DAMCG1A

Installation, commissioning and maintenance instructions

Installation preparation: Before installing IS200DAMCG1A, power off the IS200CABPG1B backplane and use ESD-safe tools. Verify compatibility with the Mark VIe controller (Series B/C) and ensure the power supply (e.g., IS200CPFPG1A) provides 24 V DC ±15%. For wiring: Use 22 AWG unshielded wires for 4-20 mA outputs (max 300 Ω loop resistance) and 18 AWG for 0-10 V outputs (min 500 Ω load). Torque terminal screws to 0.5–0.7 N·m to prevent loose connections. Label each channel (e.g., “Aux Cooling Valve – 4-20 mA”) to avoid misconfiguration.

Maintenance suggestions: Inspect IS200DAMCG1A’s per-channel LEDs weekly—green = normal output, red = short circuit/fault. Every 12 months, verify output accuracy with a basic multimeter: set the CPU to command 4 mA (0%), 12 mA (50%), and 20 mA (100%)—ensure readings are within ±0.5% of setpoint. If accuracy drifts beyond ±1%, recalibrate via ToolboxST software (no external calibration tools needed). In case of a red fault LED, first check for short circuits in the actuator wiring—replace the module only if the fault persists (use GE-approved units to maintain compatibility).

Service and guarantee commitment

IS200DAMCG1A comes with a 2-year standard warranty from GE, covering defects in materials (e.g., D/A converter, output circuits) and workmanship. If the module fails within this period (e.g., output drift, short-circuit protection failure), GE will ship a replacement within 24 hours from regional warehouses (North America, Europe, Asia) and provide free technical support for reinstallation.

GE offers 24/7 global support for IS200DAMCG1A: Certified Mark VIe engineers assist with configuration, troubleshooting, and basic calibration via phone, email, or remote access. Customers gain access to IS200DAMCG1A’s technical datasheets, setup guides, and compatibility matrices. For industrial and power generation customers, GE provides extended warranty options (up to 3 years) and annual remote diagnostic checks—ensuring the module maintains reliable performance for auxiliary actuator control and complies with IEC 61010-1 safety standards.