Repair Instruction - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN E
Moving a module in an IED from one position to another
Procedure:
1. Remove all existing configuration for the module in PCM, and write that configuration to
the IED.
2. Switch the IED off and move the HW module.
3. Switch the IED on, wait for it to start, and then perform a HW reconfig.
4. Perform a license update in PCM600.
The new module is now available in PCM600 at the new position and is ready to be configured.
14.3

Repair instruction

An alternative is to open the IED and send only the faulty circuit board to ABB for repair. When
a printed circuit board is sent to ABB, it must always be placed in a metallic, ESD-proof,
protection bag. The user can also purchase separate replacement modules.
Most electronic components are sensitive to electrostatic discharge and latent damage may
occur. Please observe usual procedures for handling electronics and also use an ESD wrist
strap. A semi-conducting layer must be placed on the workbench and connected to earth.
Disassemble and reassemble the IED accordingly:
1. Switch off the dc supply.
2. Short-circuit the current transformers and disconnect all current and voltage connections
from the IED.
3. Disconnect all signal wires by removing the female connectors.
4. Disconnect the optical fibers.
5. Unscrew the main back plate of the IED.
6. If the transformer module is to be changed:
Bay control REC670
Commissioning manual
If any configuration that makes the module needed remains, then the HW
reconfig will not remove the module.
The module will still be needed. An error indication for the module will appear, if
the module is physically removed from the IED and the IED is restarted with
some part of the configuration still requiring the module.
Never disconnect the secondary connection of a current transformer circuit
without short-circuiting the transformer's secondary winding. Operating a
current transformer with the secondary winding open will cause a massive
potential build up that may damage the transformer and may cause injuries to
humans.
Never connect or disconnect a wire and/or a connector to or from a IED during
normal service. Hazardous voltages and currents are present that may be
lethal. Operation may be disrupted and IED and measuring circuitry may be
damaged.
Strictly follow the company and country safety regulations.
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Section 14
Troubleshooting
IP8767-1 v1
M11764-2 v3
M11764-10 v1
M11766-4 v3
205