ABB PCS100 AVC-20 User Manual page 35

PCS100 AVC-20 User Manual
Status Status Bar Color
RUN Green
RUN with Yellow
Warning
BYPASS Grey
BYPASS with Yellow
Warning
AUTO Yellow
BYPASS
Description
The PCS100 AVC-20 is functioning normally.
The AC load is supplied through the series connected injection
transformer. When the utility input deviates from nominal, due to
voltage under-voltages, over voltages or unbalance, the inverter
will inject a compensating voltage via the injection transformer.
The control electronics are on. The power electronics are on.
Warning conditions will be displayed if present
The PCS100 AVC-20 is functioning normally but a warning
condition exists. Most warning conditions will not affect the
performance or regulation ability of the PCS100 AVC-20; however
sustained operation with the warning condition present could lead
to an Auto Bypass or Fault response. In some situations, the
warning condition may cause the regulation to be modified to
sustain it for a longer period of time.
The Warning code will show on the user interface and will be
stored in the system event log.
Refer to Section 9 for a description of the warning codes.
Examples of warning conditions include overload and temperature
warning conditions.
With the PCS100 AVC-20, Bypass and Off are the same.
The bypass circuit shunts the inverter side of the injection
transformer, bypassing the inverter providing a direct utility
supply to the output without interrupting the load.
This mode is entered from either a local or remote stop command
from the user, or a reset from a fault condition.
To transition to RUN operation either a local or remote start
command is required.
The control electronics are on. The power electronics are off.
The PCS100 AVC-20 is in Bypass and a warning condition exists.
The Warning code will show on the user interface and will be
stored in the system event log.
Refer to Section 9 for a description of the warning codes.
The PCS100 AVC-20 has automatically gone into Bypass as a result
of an external event (E.g. an overload) but will automatically return
to Run after the event has passed.
The bypass circuit shunts the inverter side of the injection
transformer, bypassing the inverter and effectively providing a
direct utility supply to the output without interrupting the load.
All Auto Bypass conditions are recoverable and once the condition
has passed the PCS100 AVC-20 will automatically transition back
to RUN.
Status "AUTO BYPASS" (ABYPASS) will show on the user interface.
The auto bypass code will also show on the display, and any auto
bypass events will be stored in the system event log.
Refer to Section 9 for a description of the auto bypass codes.
The control electronics are on. The power electronics are on.
.
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