E-series protective relays troubleshooting guide

Self-supervision Error Codes

Troubleshooting with the System-OK-LED status

System LED status:

• Off (not illuminated)
• Undefined (not flashing)
• Constant red or flashing red
• Flashing green, switch to constant green within 30 seconds
• Flashing red/green
• Constant green

Troubleshooting – Hardware

Problem or maloperation in:

• Failure of the display
• Failure of a relay output (relay outputs do not react)
• Failure of a digital input
• Wrong setting of the device's clock after a shortage of the supply voltage
• Failure of a key

Troubleshooting – Operation of the Device  

Problem or maloperation in:

• Relay outputs or LEDs are in unexpected state
• A trip shall be acknowledged without a password
• What is the default password
• How do I reset the password

Troubleshooting – Parameter Settings  

Problem or maloperation in:

• Transfer of device paramenters from one protection device to another of the same type

Troubleshooting – Protection and Control

Problem or maloperation in:

• After first startup of the protective device there is a pending trip
• The switchgears can not be operated by SCADA comunication
• Current and voltage measurement
• Relay outputs do not react
• Failure of control from local or remote

Troubleshooting - Communication

Problem or maloperation in:

• Failure of time synchronization
• Failure of the TCP/IP connection
• USB COM port is not visible on the PC
• USB COM port visible, but no connection possible
• Older protective devices with RS232: PowerPort-E does not connnect via RS232
• PowerPort-E can not connect to the device. This has been possible before using the same PC
• No communication (data transfer) with PowerPort-E possible, even though a connection has been established

Troubleshooting - Event Recorder

Problem or maloperation in:

• The Event Recorder is permanently logging new events
• The Waveform Recorder is permanently creating new records