Description
The General Electric (Horner Electric) HE693ADC420 is a high-performance, 4-channel isolated analog input module designed for integration into the Series 90-30 PLC platform. This module provides robust signal processing for industrial automation applications, featuring 1500 VAC RMS channel-to-channel and channel-to-ground isolation to ensure signal integrity in electrically noisy environments.
Features
- Four independent analog input channels.
- High-precision 18-bit A/D conversion with 13-bit plus sign usable resolution.
- Configurable input ranges for 4-20mA or +/- 20mA signals.
- Programmable setpoint alarms for each channel, configured via PLC %AQ registers.
- Direct data mapping to the PLC CPU %AI table.
- 1500 VAC RMS isolation for enhanced protection.
Applications
- Power generation and substation current monitoring.
- Heavy industrial processes including steel and aluminum smelting.
- Automated production line control in automotive manufacturing.
- Process control for food, textile, and refrigeration industries.
Technical Specifications
| Model |
HE693ADC420 |
| Channels |
4 |
| Input Range |
4-20mA, +/- 20mA |
| Isolation |
1500 VAC RMS |
| Resolution |
18-bit (13-bit + sign usable) |
| Update Rate |
45 channels/second |
| Power Consumption |
7W @ 5V / 1.2W @ 24V |
| Operating Humidity |
5% to 95% (non-condensing) |
Installation Guidelines
- Ensure the PLC rack power is disconnected before installing or removing the module.
- Verify that the module is fully seated in the backplane slot to ensure proper communication with the CPU.
- Use shielded twisted-pair cabling for analog signal wiring to minimize EMI/RFI interference.
- Maintain proper grounding practices for the 90-30 rack system to support the module's isolation capabilities.
- Avoid routing signal cables in close proximity to high-voltage power lines or heavy motor starters.
FAQ
What is the primary function of the HE693ADC420?
The HE693ADC420 is designed to convert analog current inputs into digital values, which are then written directly to the %AI registers of the Series 90-30 PLC CPU for use in control logic.
How are alarms managed on this module?
Each of the four channels supports a user-defined setpoint. When an input signal reaches or exceeds this setpoint, the module triggers a corresponding digital input (%I) in the PLC, allowing for immediate alarm handling within the control program.
Is this module compatible with all 90-30 racks?
The HE693ADC420 is designed for standard GE Fanuc 90-30 I/O racks. Please verify your specific rack power supply capacity to ensure it can accommodate the module's power consumption requirements.
