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- IC693MDR390
- Relay I/O Module
- USA
- 122 × 82 × 60 mm
- 1.36 kg
- Xiamen, China
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Product Overview
The GE IC693MDR390 Relay I/O Module is a combined discrete input and relay output module designed for GE Series 90-30 PLC systems. It integrates both signal acquisition and load control within a single compact module, making it suitable for space-efficient industrial automation applications.
This module is commonly used in systems where both 24 VDC input monitoring and relay-based output switching are required in one slot.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | IC693MDR390 |
| Product Type | Relay I/O Module (Combined Input & Output) |
| System Compatibility | GE Series 90-30 PLC |
| Slot Requirement | 1 slot |
| Input Type | DC digital input |
| Input Channels | 8 channels |
| Output Type | Relay output (NO contacts) |
| Output Channels | 8 channels |
| Input Voltage Range | -30 to +32 VDC |
| Input On-State Voltage | 15–32 VDC |
| Input Off-State Voltage | 0–5 VDC |
| Input Current | ~7.5 mA typical |
| Output Voltage Range | 5–30 VDC / 5–250 VAC |
| Output Current | 2 A per output |
| Max Current per Common | 4 A |
| Response Time | ~7 ms (input) / ~15 ms (output) |
| Isolation | 1500 V field-to-logic, 500 V group isolation |
| Indicators | LED status per input/output channel |
| Communication | PLC backplane communication |
| Mounting Type | Rack-mounted |
| Material | Industrial-grade electronic module |
| Dimensions | 122 × 82 × 60 mm |
| Weight | 1.36 kg |
| Operating Environment | Industrial automation systems |
| Temperature Range | 0°C to 60°C |
Function and Working Principle
The IC693MDR390 functions as a hybrid input/output module.
Its working principle includes:
- Receiving DC input signals from field devices such as switches, sensors, and pushbuttons
- Converting input signals into PLC-readable digital data
- Triggering relay outputs based on PLC logic commands
- Switching external loads such as motors, solenoids, and alarms
- Providing electrical isolation between field wiring and PLC backplane
Each input channel can correspond to system logic that controls relay output actions.
Role in Industrial Control Systems
Within GE Series 90-30 PLC architectures, the IC693MDR390 is used for:
- Compact I/O integration (input + output in one module)
- Controlling field devices via relay switching
- Monitoring discrete field signals (switches, sensors, limit switches)
- Reducing rack space requirements
- Simplifying system wiring and configuration
Industrial Applications
The GE IC693MDR390 is widely used in:
- Industrial automation systems
- Machine control panels
- Conveyor and packaging systems
- Motor starter control systems
- Alarm and signal indication systems
- Material handling systems
Installation and System Integration
Recommended installation practices include:
- Installing in GE Series 90-30 PLC racks
- Wiring inputs with 24 VDC field devices
- Connecting relay outputs to AC or DC loads
- Ensuring correct group common wiring configuration
- Using external protection (fuses or breakers) for output loads
Proper installation ensures stable and safe operation.
Compatible System Components
The IC693MDR390 typically works with:
- GE Series 90-30 CPU modules (IC693CPU series)
- Power supply modules
- Digital input/output modules
- Relay-controlled field devices
- Industrial control panels
- Sensors, switches, and actuators
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| IC693MDR390 | Relay I/O Module | 8 input + 8 relay output | Compact control systems |
| IC693MDL940 | Relay Output Module | 16-channel relay output | High-load switching |
| IC693MDL732 | Output Module | Positive logic DC output | Fast switching systems |
| IC693MDL731 | Output Module | Negative logic DC output | Sinking applications |
| IC693MDL653 | Input Module | 32-channel high-density input | Large systems |
Key Advantages
- Combines input and output in a single module
- Supports both AC and DC load switching via relay contacts
- Strong electrical isolation (1500 V field-to-logic)
- Space-saving single-slot design
- Flexible industrial signal integration
- Reliable performance in harsh environments
Technical FAQs
What is the main function of IC693MDR390?
It provides both digital input monitoring and relay output control in one module.
How many inputs and outputs does it have?
It has 8 DC inputs and 8 relay outputs.
Can it switch AC and DC loads?
Yes, relay outputs support both AC and DC switching.
What makes it different from standard I/O modules?
It combines input and output functions in a single compact module.
Conclusion
The GE IC693MDR390 Relay I/O Module is a versatile and space-efficient solution for GE Series 90-30 PLC systems. By combining 8 digital inputs and 8 relay outputs in one module, it reduces system complexity while maintaining reliable industrial control performance.
It is ideal for applications requiring compact, flexible, and robust mixed I/O functionality.