Brief Introduction to GE IS2020RKPSG2A Relay Output Module

Name: IS2020RKPSG2A | GE | high-reliability relay output module
SKU: 19867
Price: 4999.00 USD
Availability: InStock

The GE IS2020RKPSG2A is a high-reliability relay output module designed for these critical scenarios. It accurately converts electrical control signals into mechanical actions, ensuring that devices such as valves, motors, and alarms respond promptly and stably.

1. Product Overview & Core Advantages

The GE IS2020RKPSG2A is a key component of GE’s Mark VIe industrial control system, belonging to the brand’s renowned IS200 series of I/O modules. It is specifically engineered for medium and large-scale industrial control applications, widely used in power generation, oil and gas, and heavy machinery industries to execute control commands from upper-level controllers.

Its core strengths align perfectly with industrial operational demands: First, it boasts high load capacity. Each relay output channel can handle up to 5A current, supporting direct control of small and medium-sized actuators without the need for additional amplifiers. Second, it features robust anti-interference performance. The module adopts photoelectric isolation technology between channels and the power supply, effectively blocking electromagnetic interference from on-site equipment like inverters. Third, it is user-friendly for maintenance. The front panel is equipped with LED indicators for each channel, allowing maintenance personnel to quickly identify whether the relay is energized or faulty at a glance.

2. Key Technical Specifications

The technical parameters of the IS2020RKPSG2A are designed for practicality, with clear and straightforward indicators that facilitate selection and operation:

Product Type: Industrial-grade relay output module
Output Channels: 16 independent relay output channels
Relay Type: Electromechanical relay, normally open (NO) contact
Output Rating: AC 250V/5A, DC 30V/5A, compatible with most industrial actuators
Control Signal: TTL level (from GE Mark VIe controller)
Communication Interface: GE VMEbus, seamless connection with Mark VIe controller
Power Supply: DC 24V (18–32V), with overvoltage and reverse polarity protection
Operating Temperature: 0°C to +60°C, suitable for control room and on-site cabinet environments
Isolation Performance: Channel-to-channel isolation ≥ 1kVrms, signal-to-power isolation ≥ 2.5kVrms
Dimensions: 160mm × 100mm × 220mm (rack-mounted), fits GE standard control cabinets
Protection Level: IP20, suitable for cabinet-mounted installation
Response Time: ≤ 10ms, ensuring timely execution of control commands

3. System Integration & Practical Application

The IS2020RKPSG2A is an essential part of GE’s Mark VIe Turbine Control System. This integrated system consists of GE Mark VIe controllers (e.g., IS215UCVEM01), IS200 series I/O modules, HMI operation panels, and CIMPLICITY monitoring software. It realizes the full automation process of “signal collection – logic calculation – command execution – status feedback” and is widely used in the core control of gas turbines, steam turbines, and other rotating equipment.

Taking the control system of a gas turbine in a combined cycle power plant as an example, the application process of the IS2020RKPSG2A is intuitive and clear:

The Mark VIe controller receives real-time data such as turbine speed, exhaust temperature, and fuel pressure from the input module, and generates control commands after logical calculation.
The controller sends the command to the IS2020RKPSG2A via the VMEbus, and the corresponding relay channel of the module is energized and closed.
The closed relay drives the on-site actuators: for example, opening the fuel control valve to adjust the fuel supply, or starting the auxiliary lubricating oil pump when the oil pressure is low.
During operation, the module feeds back the on/off status of each relay to the HMI in real time. If a relay fails, the corresponding LED indicator turns red, and the system sends an alarm to remind maintenance.

This reliable “command execution chain” ensures that the gas turbine operates within safe parameters. Even in the event of a transient load change in the power grid, the module can quickly respond to controller commands, maintaining the stable operation of the unit.

4. Recommended GE Related Models

GE’s IS200 and IS210 series I/O modules form a complete product matrix, covering different signal types and application scenarios. The following are practical models suitable for various control needs:

GE IS2020RKPSG3A: Enhanced version of IS2020RKPSG2A, 32 relay output channels, suitable for large-scale control nodes (e.g., power plant central control room)
GE IS2020RKPSG1A: Compact version, 8 relay output channels, suitable for small control systems (e.g., auxiliary equipment of small turbines)
GE IS2020RIPSG2A: Digital input module, 16 channels, used to collect on-site sensor signals (e.g., limit switch status of turbine valves)
GE IS2020RAPSG2A: Analog output module, 16 channels (4–20mA), for precise control of regulating valves and frequency converters (e.g., boiler water level regulation)
GE IS2020RIASG2A: High-density digital input module, 32 channels, for massive signal collection (e.g., status monitoring of multiple auxiliary pumps)
GE IS2020RADS2A: Analog input module, 16 channels, collecting continuous parameters such as temperature and pressure (e.g., gas turbine combustion chamber temperature monitoring)
GE IS2020RKPSG2A-EX: Explosion-proof version, ATEX Zone 2 certification, used in hazardous areas (e.g., oil refinery gas turbine units)
GE IS215UCVEM01: Mark VIe main controller, matching IS200 series modules, suitable for large-scale unit control
GE IS2020RCOMM1A: Communication module, realizing protocol conversion between VMEbus and Modbus TCP, facilitating connection with third-party systems
GE IS2020RDOAS2A: Solid-state relay output module, fast response (≤1ms), suitable for high-speed control scenarios (e.g., automated production line conveyor belts)
GE IS210AEBIH3BEC: Analog input module, compatible with IS200 series systems, for high-precision signal collection (e.g., turbine vibration monitoring) View more …..