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Phone：+86 15383419322Description
The GE IS215ACLEH1A is a versatile Analog Control and Relay Output Module designed for GE’s Mark VI turbine control platform, delivering precision signal processing and robust switching capabilities in critical power generation environments. Manufactured by GE Energy, this module integrates 16-bit analog input acquisition with configurable relay outputs to manage auxiliary systems in gas/steam turbines and compressors. The GE IS215ACLEH1A features isolated signal conditioning for thermocouples, RTDs, and 4-20mA field devices, coupled with Form C relay contacts rated for high-inductive loads. Its dual-redundant design ensures continuous operation during component failure, while conformal-coated circuitry withstands harsh substation conditions. As part of GE’s Speedtronic series, this module enables seamless integration with <1 ms response times for protection logic, making it indispensable for lube oil systems, valve positioning, and emergency shutdown circuits.
GE IS215ACLEH1A
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | GE IS215ACLEH1A |
| Manufacturer | GE Energy |
| Product Type | Analog Control & Relay Module |
| Analog Inputs | 8 channels (16-bit resolution) |
| Input Types | TC (J/K/T/E), RTD (PT100/1000), 0-10V, ±20mA |
| Relay Outputs | 4 × Form C (SPDT) |
| Relay Rating | 5A @ 30V DC / 250V AC (resistive) |
| Isolation | 1500V AC channel-to-channel |
| Accuracy | ±0.1% FS (analog), ±0.5 ms (relay) |
| Backplane Interface | PCI-based (Mark VI rack) |
| Operating Temperature | -40°C to +70°C |
| Power Consumption | 3.5W @ +5V DC |
| Response Time | <1 ms (relay actuation) |
| Certifications | UL 508, IEC 61010-1, DNV-GL |
Main Features and Advantages
Intelligent signal processing: Auto-calibration algorithms compensate for temperature drift in RTD measurements, while programmable filtering rejects EMI in thermocouple circuits. The GE IS215ACLEH1A supports custom linearization curves for non-standard sensors.
High-reliability switching: Gold-plated relay contacts prevent welding during inductive load interruptions. Built-in snubber circuits suppress voltage spikes from solenoid valves. Relay health monitoring tracks contact erosion via accumulated actuation counts.
Cybersecurity compliance: Hardware-enforced firmware signature verification prevents unauthorized code modifications. Configurable role-based access aligns with NERC CIP requirements. The GE IS215ACLEH1A also provides event sequence recording (SER) with μs timestamps for forensic analysis.
Application Field
The GE IS215ACLEH1A monitors bearing temperatures in hydro turbines using embedded RTDs, triggering cooling pumps via relays upon threshold exceedance. In combined-cycle plants, it controls fuel gas skid valves through 4-20mA positioning and executes emergency stops during flameout events.
For compressor stations, this module manages anti-surge controllers by processing discharge pressure transmitters and activating recycle valves. The GE IS215ACLEH1A also safeguards boiler feed pumps in thermal plants by tripping motors on low-lube-oil-pressure signals.
Related Products
GE IS215VCMIH2B: VME controller for IS215ACLEH1A integration
GE IS200TBAIH1C: Analog input expansion module
GE DS200DCFBG1B: Excitation control board (complementary system)
GE IS215UCVEH2A: Communication gateway for HMI interfacing
GE IC693ALG392: Redundant analog output module
GE IS215PMCIH1A: Power management controller
GE IS215ACLEH1A
Installation and Maintenance
Pre-installation preparation: Verify rack compatibility (Mark VI VME chassis). Discharge static via wrist strap. Configure jumpers for sensor types before insertion. Ensure backplane voltage stability (±5% tolerance).
Maintenance recommendations: Annual calibration of analog channels using GE’s Calibration ToolKit software. Exercise relays monthly via software command to prevent contact oxidation. Replace the GE IS215ACLEH1A if relay bounce time exceeds 2 ms. Monitor operating temperature – sustained >65°C requires airflow improvement.
