HE693THM884M GE Series 90-30 Thermocouple Input Module
Manufacturer: GE Fanuc
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Part Number: HE693THM884M
Condition：New with Original Package
Product Type: Thermocouple Input Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc HE693THM884M Series 90-30 Thermocouple Input Module
The GE Fanuc HE693THM884M, also cataloged as the HE693THM884M Thermocouple/RTD Input Module, operates as a dedicated hardware component for multichannel temperature signal digitizing within Series 90-30 PLC backplane configurations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | HE693THM884M |
| Brand | GE Fanuc |
| Origin | United States |
| Weight | 0.45 kg |
| Dimensions | 120 x 40 x 150 mm |
| Operating Temp | 0 to 60 deg C |
| Storage Temp | -40 to 85 deg C |
| Power Consumption | 100 mA @ 5 VDC (Typical), 300 mA (Full Operation) |
| System Platform | Series 90-30 PLC |
| Channel Capacity | 8 isolated input channels |
| Supported Sensors | Thermocouples (Type J, K, T, E, R, S, B, N) and configuration-dependent RTDs |
| Temperature Range | -200 to +760 deg C (Type J), -270 to +1372 deg C (Type K), -200 to +1800 deg C (Other Types) |
| Resolution | 0.1 deg C increments |
| Measurement Accuracy | +/-0.1% of span |
| Rack Resource Allocation | 8 Analog Inputs (8AI), 8 Analog Outputs (8AQ), 16 Discrete Inputs (16I) |
Backplane Bus Communication Velocity & I/O Density Scaling
The module handles high-density sensor scaling by mapping analog inputs directly into the PLC memory table. Field signals undergo analog-to-digital processing and transmit across the backplane bus to ensure deterministic execution within the controller cycle. Built-in firmware registers maintain synchronization with the CPU while managing internal channel scans, reducing system latency across multi-channel thermal monitoring loops.
Frequently Asked Questions
Q: How does the module handle sensor wire breaks during operation?
A: Integrated open-circuit detection monitors sensor continuity and drives the corresponding input register value to maximum, allowing application logic to initiate safety routines.
Q: Can the module draw operating power directly from external sensor loops?
A: No, the module requires supply current directly from the 5 VDC backplane rail, consuming 100 mA nominally and up to 300 mA during full operations.
Field Installation Guidelines
Mount the unit firmly into an energized or unpowered Series 90-30 rack slot after removing system power. Route thermocouple extension leads and RTD wiring through grounded conduits isolated from high-voltage AC motor lines. Connect signal cable shields to a single grounding point on the panel enclosure to prevent ground loop noise from degrading analog conversion accuracy.