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- GE
- IC693MDL930E
- Isolated Relay Output Module
- USA
- 188 × 40 × 107 mm
- 0.45 kg
- Xiamen, China
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Product Overview
The GE IC693MDL930E Series 90-30 Isolated Relay Output Module is used to switch external loads from a Series 90-30 PLC control system. Relay outputs provide electrical switching between the PLC output circuitry and connected field devices, making this module suitable for applications where individual output channels need isolated switching paths.
In a typical Series 90-30 installation, the PLC logic determines when an output should change state. The IC693MDL930E receives the corresponding output command and operates its relay contacts to switch the connected field circuit. Typical loads can include contactors, solenoids, indicator devices, interposing relays, and other discrete control equipment.
The isolated relay arrangement is useful when output circuits have different field-side requirements or when channel-to-channel electrical separation is needed. The module belongs to the output layer of the PLC architecture rather than the CPU or communication layer.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product | GE IC693MDL930E |
| Product Family | Series 90-30 |
| Product Type | Isolated Relay Output Module |
| Output Type | Relay |
| Primary Function | Switching discrete field loads |
| System Role | Discrete output interface |
| Application | PLC-based machine and process control |
| Physical Dimensions | 188 × 40 × 107 mm |
| Weight | 0.45 kg |
Product Features
- Provides relay-based discrete output switching for Series 90-30 systems.
- Uses isolated output channels for individual field-side switching circuits.
- Suitable for controlling external discrete devices from PLC logic.
- Supports applications involving contactors, solenoids, relays, indicators, and similar loads.
- Provides a physical interface between PLC output logic and field equipment.
- Useful where relay contacts are preferred for the connected load circuit.
- Fits within the modular Series 90-30 PLC architecture.
- Can be integrated into machine and process control panels using discrete field outputs.
Working Principle
The IC693MDL930E converts an output command from the Series 90-30 control logic into a physical relay contact state. When the PLC program determines that a particular output should be energized, the corresponding relay operates and changes the state of its field-side contacts.
The connected load is therefore switched through the relay contact rather than being driven directly by the PLC logic circuitry. When the output command is removed, the relay returns to its inactive state according to the module’s relay operation.
The isolated channel arrangement allows output circuits to be treated independently when wiring and troubleshooting the field side. A useful troubleshooting method is to separate the problem into three areas: PLC output command, relay operation, and external load circuit. If the PLC logic is correct but the field device does not respond, the wiring, load, and relay contact path should be checked before assuming a CPU or program fault.
Role in a Series 90-30 Control Architecture
| System Element | Function |
|---|---|
| Field Devices | Receive switched output signals from the PLC system |
| Sensors / Inputs | Provide operating conditions and status information to the PLC |
| Series 90-30 CPU | Executes application logic and determines output states |
| Series 90-30 Backplane | Provides the electrical and mechanical connection between PLC modules |
| IC693MDL930E Output Module | Converts PLC output commands into relay contact switching |
| Interposing Devices | May provide additional isolation or load interface where required |
| Actuators / Loads | Perform the commanded machine or process action |
The IC693MDL930E is positioned between the PLC logic and external discrete loads:
PLC Program → Series 90-30 CPU → Backplane → IC693MDL930E → Relay Contacts → Field Load
Input modules and sensors provide the conditions used by the PLC program, while the relay output module executes the resulting discrete output commands at the field interface.
Industrial Applications
| Application | Typical Use |
|---|---|
| Machine Automation | Switching contactors, solenoids, and machine actuators |
| Motor Control | Providing discrete commands to motor control circuits |
| Packaging Machinery | Controlling valves, actuators, indicators, and auxiliary equipment |
| Material Handling | Switching conveyor and handling-system control devices |
| Process Equipment | Controlling discrete valves, relays, and auxiliary devices |
| Pump Systems | Providing start/stop or auxiliary control signals |
| Control Panels | Interfacing PLC logic with field-side relay circuits |
| Legacy PLC Systems | Maintaining discrete output functions in Series 90-30 installations |
Installation and Maintenance
- Verify Output Application
Confirm that the connected field load is suitable for relay output switching before installation. - Check Module Compatibility
Verify that the IC693MDL930E is appropriate for the Series 90-30 rack and application. - Inspect Field Wiring
Check terminal wiring for loose connections, damaged conductors, incorrect routing, or signs of overheating. - Separate Control and Load Faults
When an output device does not operate, first determine whether the PLC is issuing the expected output command. - Inspect Relay Contacts
Check the relay output path when the PLC command is present but the connected load does not respond. - Verify Load Circuit
Confirm that the external device, wiring, protective components, and field-side power supply are functioning correctly. - Check Backplane Connection
Inspect the module seating and rack connection if the PLC does not recognize or operate the output module correctly. - Avoid Excessive Switching Stress
Consider the switching characteristics of the connected load, particularly for inductive devices, and use suitable suppression where required. - Inspect for Heat Damage
Look for discoloration, damaged terminals, or other signs of excessive electrical loading during routine maintenance. - Document Channel Assignments
Maintain an accurate record of each output channel and its connected field device to simplify troubleshooting. - Use Proper Replacement Procedures
Follow applicable PLC safety and maintenance procedures before removing or installing the module. - Test After Maintenance
Verify individual output commands, relay operation, field-device response, and associated machine interlocks after installation or repair.
Related Components
| Component | Function |
|---|---|
| GE Series 90-30 CPU | Executes PLC control logic |
| GE Series 90-30 Power Supply | Provides power to the PLC system |
| Series 90-30 Input Modules | Acquire discrete or analog field signals |
| Series 90-30 Backplane | Connects PLC modules within the rack |
| IC693MDL930E | Provides isolated relay output switching |
| Interposing Relays | Provide additional switching or interface capability |
| Contactors | Switch higher-power motor or equipment circuits |
| Solenoid Valves | Convert electrical output commands into valve movement |
| Machine Indicators | Provide visual status indication |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| GE Series 90-30 | PLC Platform | Machine and process automation |
| GE Series 90-30 CPU Modules | Central Processing Unit | PLC control logic execution |
| GE Series 90-30 Digital Input Modules | Digital Input | Discrete field signal acquisition |
| GE Series 90-30 Relay Output Modules | Relay Output | Switching discrete field loads |
| GE Series 90-30 Transistor Output Modules | Digital Output | High-speed discrete output applications |
| GE Series 90-30 Power Supplies | Power Supply | PLC rack power |
| GE Series 90-30 Backplanes | Rack Component | Module interconnection and mounting |
Key Advantages
- Relay-based switching for discrete field loads.
- Isolated output channels for separate field circuits.
- Direct interface between Series 90-30 logic and external devices.
- Suitable for a wide range of discrete machine-control functions.
- Straightforward troubleshooting through separate PLC, relay, and load checks.
- Suitable for maintaining existing Series 90-30 control installations.
Technical FAQs
What type of loads can the IC693MDL930E control?
The module is intended for discrete relay-output applications. Typical loads include contactors, solenoids, interposing relays, indicator devices, and other equipment that can be controlled through relay contacts. The actual load must remain within the applicable electrical limits of the module and connected circuit.
Why use an isolated relay output module instead of a standard digital output?
Relay outputs provide physical contact switching between the PLC output function and the external load circuit. Isolated channels can be useful when different field circuits need to remain electrically separated or when the connected equipment is better suited to relay-contact switching.
How can an output channel be tested when the connected device does not operate?
First verify that the PLC program is commanding the intended output. Then check the module’s output state and relay contact path, followed by the field wiring, external power supply, and load. This approach helps distinguish a PLC logic issue from a relay-output or field-device problem.
What should be checked before replacing an IC693MDL930E?
Confirm the PLC output command, module seating, backplane connection, field wiring, external load, and relay contact behavior. If only one field device is affected, inspect that output channel and its associated wiring before replacing the entire module.