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- UR 6DV
- Digital I/O Module
- USA
- 120 × 30 × 100 mm
- 0.9 kg
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Product Overview
The GE UR 6DV Multilin UR Series Digital I/O Module is a digital I/O component used in compatible GE Multilin UR Series protection and control equipment. It forms part of the relay’s discrete signal interface, connecting external equipment conditions with the internal processing and automation functions of the host device.
Digital signals are commonly used for equipment status, breaker position, auxiliary contacts, alarms, interlocks, and control conditions. By incorporating these signals into the relay architecture, the protection system can consider both electrical measurements and the actual operating state of connected equipment.
The UR 6DV operates as part of the host UR Series device rather than as an independent controller. Its practical application depends on the relay model, configured I/O assignments, field wiring, and the specific protection or automation scheme.
For maintenance and replacement work, technicians should identify the host relay and existing signal configuration before removing the original module. This helps maintain the intended relationship between the digital I/O circuits and the relay logic.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | UR 6DV |
| Product Family | Multilin UR Series |
| Product Type | Digital I/O Module |
| Primary Function | Digital Signal Interface |
| System Role | Discrete I/O |
| Application | Protection and Control Systems |
| Installation | GE Multilin UR Series Devices |
| Dimensions | 120 × 30 × 100 mm |
| Weight | 0.9 kg |
Product Features
The UR 6DV is intended for discrete signal interfacing within compatible Multilin UR Series equipment.
Key characteristics include:
- GE Multilin UR Series digital I/O module
- Model UR 6DV
- Provides discrete signal interfacing
- Connects external equipment with relay functions
- Supports equipment status monitoring
- Suitable for breaker and switchgear applications
- Supports alarm and interlock circuits
- Works with configured relay logic
- Integrates into the UR Series I/O architecture
- Suitable for maintenance and replacement applications
The actual signal assignment depends on the host relay configuration and the external equipment connected to the module.
Working Principle
The UR 6DV forms part of the digital signal path between external electrical equipment and the processing system of a Multilin UR Series relay.
A simplified relationship is:
External Equipment → UR 6DV → UR Series Processor → Protection / Control Logic → External Control Circuit
When an external device changes its binary state, the corresponding digital I/O circuit transfers that condition into the relay’s processing architecture. The processor can evaluate the signal together with protection elements, alarms, interlocks, and other configured conditions.
Based on the programmed control logic, the relay can use the resulting information to initiate an appropriate control or alarm response.
This arrangement provides a direct connection between equipment status in the electrical system and the programmable protection and automation functions within the UR Series device.
Role in a Multilin UR Protection Architecture
The UR 6DV occupies the digital I/O interface layer within the Multilin UR Series architecture.
A simplified signal path can be represented as:
Field Equipment → UR 6DV → UR Processor → Protection / Automation Logic → External Control Equipment
| System Layer | Typical Function |
|---|---|
| Field Equipment | Provides equipment status |
| Digital I/O Layer | Exchanges discrete signals |
| Processing Layer | Evaluates incoming conditions |
| Protection Layer | Executes configured protection functions |
| Automation Layer | Handles control and interlocking |
| Output Layer | Transfers commands to external circuits |
| Supervisory Layer | Monitors relay status and events |
This structure allows the relay to combine electrical protection functions with real-time information about connected equipment.
For example, breaker position information can be incorporated into control or interlocking logic so that a command is processed according to the actual state of the equipment.
Industrial Applications
The UR 6DV is applicable to protection and automation systems using compatible GE Multilin UR Series equipment.
| Application | Typical Use |
|---|---|
| Electrical Substations | Breaker and switchgear status |
| Power Generation | Generator control interfaces |
| Distribution Systems | Feeder equipment monitoring |
| Transmission Systems | Protection interlocking |
| Motor Protection | Contactor and auxiliary signals |
| Transformer Protection | Alarm and control circuits |
| Industrial Power Systems | Equipment interlocks |
| Utility Automation | Discrete monitoring and control |
The exact application depends on the host relay model, configured I/O functions, and external wiring.
Installation and Maintenance
Before replacing a UR 6DV, the existing relay configuration should be reviewed. Digital I/O circuits can be connected to multiple external control and monitoring points, making accurate documentation important during maintenance.
Recommended checks include:
- Confirm the complete UR 6DV model.
- Identify the host Multilin UR Series relay.
- Verify module compatibility.
- Record the existing module position.
- Document digital I/O assignments.
- Identify connected breaker and switchgear circuits.
- Record alarm and interlock connections.
- Isolate applicable circuits before replacement.
- Inspect connectors and terminals.
- Check field wiring for loose or damaged connections.
- Verify correct module positioning.
- Ensure connectors are fully seated.
- Restore system connections according to the applicable procedure.
- Check expected digital signal states.
- Verify configured control functions.
- Review relay diagnostic information.
- Confirm normal operation of connected equipment.
If the relay continues to show an incorrect digital state after replacement, the external circuit should be traced from the field device through the wiring and terminals to the module. This approach helps distinguish a module issue from a problem elsewhere in the signal path.
Related Components
The UR 6DV operates within a larger Multilin UR Series protection and control system.
| Component | Function |
|---|---|
| UR Series Protection Relay | Provides protection and control functions |
| UR 6DV | Provides digital I/O interfacing |
| UR 6DH | Provides digital I/O functions |
| UR 6CV | Provides digital I/O functions |
| UR 6CH | Provides digital I/O functions |
| UR 6AH | Provides digital I/O combination functions |
| UR 5CH | Interfaces transducer-related signals |
| UR 1HH | Provides relay operating power |
| Processor Module | Executes protection and control logic |
| Breaker / Switchgear | Provides status and receives commands |
| Auxiliary Contacts | Supply equipment position signals |
The selection of a related module should be based on the host relay configuration and the required signal function.
Recommended Related Models
For GE Multilin UR Series applications, related modules can be selected according to their specific role within the protection architecture.
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| GE UR 6DV | Digital I/O Module | Discrete signal interfacing |
| GE UR 6DH | Digital I/O Module | Digital signal interface |
| GE UR 6CV | Digital I/O Module | Digital signal interface |
| GE UR 6CH | Digital I/O Module | Digital signal interface |
| GE UR 6AH | Digital I/O Combination Module | Digital status and control |
| GE UR 5CH | Transducer I/O Module | Transducer signal interface |
Although these products belong to the same Multilin UR family, their application should be matched to the required I/O function and the specific host relay.
Key Advantages
- GE Multilin UR Series digital I/O hardware
- Model UR 6DV
- Provides discrete signal interfacing
- Connects external equipment with relay logic
- Supports equipment status monitoring
- Suitable for breaker and switchgear applications
- Supports alarm and interlock functions
- Integrates with configured protection and control logic
- Suitable for utility and industrial power systems
- Useful for maintenance and replacement applications
Technical FAQs
What function does the UR 6DV perform in a Multilin UR relay?
The UR 6DV serves as a digital I/O interface within compatible UR Series equipment. It allows configured discrete equipment conditions to be incorporated into the relay’s monitoring, protection, control, and automation functions.
How can digital I/O information affect relay control logic?
A discrete status signal can be evaluated by the relay processor together with configured protection elements, alarms, and interlocks. Depending on the application logic, the resulting condition can permit, block, or initiate a specific control response.
What should be verified when installing a replacement UR 6DV?
The host relay model, module compatibility, module position, I/O assignment, field wiring, terminal connections, and configured functions should all be checked. This is especially important when the existing relay has been modified during its service life.
Why should external circuits be checked before declaring the UR 6DV defective?
A digital signal depends on the complete electrical path between the external device and the relay. Problems with control voltage, auxiliary contacts, cables, terminals, connectors, or configuration can create the same symptoms as a failed I/O module.