Repair Instruction - ABB RES670 2.1 Commissioning Manual

1MRK 511 366-UUS -
13.3
Commissioning manual
Event message:
MIM1-Error
INT--RTC Off
INT--RTC
INT--TSYNC Off
INT--TSYNC
INT--SETCHGD
DRPC-CLEARED
The events in the internal event list are time tagged with a resolution of 1ms.
This means that, when using the PC for fault tracing, it provides information on the:
• Module that should be changed.
• Sequence of faults, if more than one unit is faulty.
• Exact time when the fault occurred.

Repair instruction

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.
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.
Strictly follow the company and country safety regulations.
Description
Real Time Clock (RTC) status
External time synchronization
status
Any settings in IED changed
All disturbances in Disturbance
report cleared
Section 13
Troubleshooting
Generating signal:
MIM1-Error (set event)
INT--RTC (reset event)
INT--RTC (set event)
INT--TSYNC (reset event)
INT--TSYNC (set event)
183