IS220PTCCH1A General Electric Mark VIe PTCC Board

GE IS220PTCCH1A Thermocouple Input Module – Mark VIe Series

General Electric IS220PTCCH1A functions as a Thermocouple Input Module (PTCC) within the Mark VIe Distributed Control System. This pack provides the electrical interface between I/O Ethernet networks and thermocouple input terminal boards. Engineers specify IS220PTCCH1A for accurate temperature measurement and flexible system redundancy.

Core Technical Specifications

• Brand: General Electric (GE)
• Model: IS220PTCCH1A
• Series: Mark VIe Control System
• Functional Acronym: PTCC
• Product Type: Thermocouple Input Module
• Number of Channels: 12 per pack
• Thermocouple Types: E, J, K, S, T (grounded or ungrounded)
• Input Span: -8 mV to +45 mV
• A/D Converter: 16-bit resolution
• Common Mode Voltage: ±5 V
• Normal Mode Rejection: 250 mV RMS @ 50/60 Hz
• AC Common-Mode Rejection: 100 dB @ 50/60 Hz
• Microprocessor: AMD-K6 300 MHz
• Operating Temperature: -30°C to +65°C
• Maximum Cable Distance: 984 feet (300 meters)
• Maximum Cable Resistance: 450 Ω
• Dimensions: 8.26 cm x 4.19 cm
• Weight: 1 lb
• Shipping Dimensions: 12x12x12 inches
• Manual: GEH-6721D

Input and Interface Design

• Dual RJ-45 Ethernet connectors interface with I/O networks. Supports simplex, duplex, and TMR configurations.
• Three-pin power input with soft-start current limiter. Eliminates inrush current during hot insertion.
• DC-37 pin connector mates directly with terminal boards. Compatible with TBTCH1B and TBTCH1C terminal boards.
• Infrared serial communications port for local diagnostics. Enables wireless configuration and troubleshooting.
• Twelve fully isolated thermocouple inputs per pack. Each channel independently configurable for thermocouple type.

Processor and Memory Architecture

• AMD-K6 300 MHz high-speed processor. Provides substantial programmable logic for acquisition board control.
• Internal BPPx processor board common to all Mark VIe I/O packs. Standardized architecture simplifies spares inventory.
• Dedicated acquisition board for thermocouple input function. Optimized for low-level signal conditioning.
• RAM and flash memory for firmware and data logging. Retains configuration through power cycles.
• Hardware watchdog timer and reset circuit. Automatically recovers from processor faults.

System Configurations and Channel Capacity

• One IS220PTCCH1A provides 12 thermocouple inputs. Suitable for simplex applications.
• Two packs on TBTCH1C terminal board deliver 24 inputs. Ideal for duplex systems requiring higher channel count.
• TMR configuration uses three packs on TBTCH1B. Provides triple redundant measurement with three cold junctions.
• Only 12 thermocouples available in TMR mode. Redundancy prioritized over channel density.
• Electronic ID allows board-to-board communication. Reads IDs on other boards for automatic system mapping.

Diagnostic and Monitoring Features

• Indicator LEDs provide visual operational status. Immediate fault identification without software tools.
• Local ambient temperature sensor on processor board. Compensates for cold junction variations.
• Power-up self-tests verify critical components. Checks flash memory, RAM, processor hardware, and Ethernet ports.
• Continuous monitoring of internal power supplies. Alerts operator to developing failure conditions.
• Maximum software error/conformity error: 0.25°F. Ensures precise temperature measurement for turbine control.
• High/low hardware and software limit checks. Prevents undetected out-of-range conditions.

Thermocouple Compatibility and Signal Conditioning

• Supports E, J, K, S, and T standard thermocouples. Covers majority of gas turbine temperature monitoring points.
• Accepts both grounded and ungrounded thermocouples. Flexible installation without additional isolation hardware.
• mV input span of -8 mV to +45 mV. Accommodates full operating range of all supported thermocouple types.
• 16-bit A/D converter provides high-resolution digitization. Accurate representation of small temperature variations.
• Series-standardized limiting hardware components. Capacitors, resistors, transistors, diodes, and integrated circuits suppress voltage transients.

Installation and Configuration

• Mount terminal board securely in designated rack location. Ensure proper alignment before pack insertion.
• Plug IS220PTCCH1A directly into terminal board connector. One pack for simplex, two for 24 inputs, three for TMR.
• Secure packs using threaded studs adjacent to Ethernet ports. Studs fit into terminal board-specific mounting bracket.
• Adjust bracket to eliminate right-angle force on DC-37 connector. One-time adjustment for product lifespan.
• Connect one or two Ethernet cables per system configuration. ENET1 recommended for R controller network.
• Apply power via side connector with soft-start active. No need to remove power before insertion.
• Configure using ToolboxST application. Set thermocouple types, limit checks, and network parameters.

Environmental and Physical Specifications

• Operating temperature range: -30°C to +65°C. Suitable for turbine control cabinet installations.
• Compact form factor: 8.26 cm x 4.19 cm. Space-efficient design for high-density I/O racks.
• Surface mount technology construction. Modern manufacturing for improved reliability.
• IS220 special assembly type. Mark VIe distributed I/O platform standard.
• A-rated revision of parent IS220PTCCH1 module. Field-proven design with mature firmware.

Packaging and Delivery

• Each IS220PTCCH1A ships in anti-static shielded packaging. ESD foam protects all connectors and components.
• Package includes one processor board and one acquisition board. Complete thermocouple input module ready for installation.
• No cables, terminal boards, or mounting hardware included. Order required terminal boards separately.
• We ship via FedEx, UPS, or DHL. Tracking information provided within 24 hours of dispatch.
• International export packaging available. Double-boxed with moisture barrier for air freight.
• Repair service available: 3-7 day turnaround. Factory-trained technicians restore to original specifications.

Contact Information

• Email inquiries: sales@nex-auto.com
• WhatsApp support: +86 153 9242 9628
• Response time: Same business day for all technical and commercial questions.

Frequently Asked Questions

Q: What is the difference between IS220PTCCH1A and IS220PTCCH1?
A: IS220PTCCH1A is the A-rated revision with enhanced firmware and full TMR support. It supersedes the original IS220PTCCH1 parent module.

Q: How many thermocouples can I measure with two packs?
A: Two IS220PTCCH1A packs on a TBTCH1C terminal board provide 24 thermocouple inputs. Each pack contributes 12 channels.

Q: What is the maximum distance from turbine I/O panel?
A: Thermocouples can be located up to 984 feet (300 meters) from the panel. Cable resistance must not exceed 450 Ω.

Q: Can this module accept grounded thermocouples?
A: Yes. IS220PTCCH1A supports both grounded and ungrounded thermocouples for E, J, K, S, and T types.

Q: What software is required for configuration?
A: ToolboxST application is required to configure the PTCC pack. We supply only the hardware module.

Q: What is the typical lead time for IS220PTCCH1A?
A: In-stock orders ship within 48 hours. Volume orders typically ship within 5 business days.

Partner: AutoNex Controls Limited – Authorized GE Speedtronic parts supplier.