Technical Specifications

FAQ

1. What is the main function of the GE UR 6DV Digital I/O Module?
The UR 6DV is a digital I/O module designed for GE Multilin Universal Relay systems. It provides digital signal acquisition and control interfaces for protection, automation, equipment status monitoring, and interlocking applications.

2. How many digital inputs does the UR 6DV provide?
The UR 6DV configuration provides 16 digital inputs. These inputs can be used to monitor external binary status signals such as breaker position, switch status, protection contacts, and interlock signals.

3. What input voltage range does the UR 6DV support?
The digital inputs support a wide wet-input voltage range of 19–285 VDC. This allows the module to accommodate different DC control voltages commonly found in industrial and substation applications.

4. What is the purpose of optical isolation in the UR 6DV?
Optical isolation electrically separates the digital input circuits from the relay’s internal electronics. This helps reduce the impact of electrical transients and ground potential differences on the control system.

5. What are common symptoms of a UR 6DV digital input fault?
Typical symptoms include an input remaining permanently ON or OFF, incorrect breaker or switch status indications, missing status signals, or unexpected logic operation in the protection relay. Field wiring, input voltage, terminal connections, and the corresponding UR logic should be checked.

6. How should a digital input problem on the UR 6DV be troubleshot?
First verify the external control voltage at the input terminals. Then check wiring continuity and terminal connections. If the correct voltage is present but the UR relay does not recognize the input state, check the module configuration, input status in the relay interface, and associated programmable logic.

7. Which systems can use the UR 6DV module?
The UR 6DV is designed for GE Multilin Universal Relay platforms. UR Series applications include feeder, motor, generator, transformer, line, bus, and control protection systems, depending on the specific relay model and hardware configuration.

8. What precautions should be taken when replacing the UR 6DV?
Disconnect the relevant control power before removing the module and record the existing wiring and configuration. Verify the module identification and hardware option before installation. After replacement, check every digital input, confirm the expected ON/OFF states, and test the associated protection and control logic before returning the relay to service.