Bio-Rad PowerPac™ HC High-Current Power Supply - Manual (Page 15)

If a power failure occurs during a run, there are several possible scenarios which
are described as follows:
Message Displayed Explanation
RUN ABORTED PFd was OFF.
AFTER POWER FAIL The run, either timed or continuous, was aborted after a power
failure occurred.
*PRESS STOP KEY After pressing the stop key to reset, the original run parameters
TO RESET are no longer available.
RUN STOPPED PFd was ON when a power failure occurred and the run was
AFTER POWER FAIL resumed automatically.
The run, either timed or continuous, has been terminated by
pressing the stop key.
(Message alternates After pressing the stop key to reset, the original run parameters
with final run parameters) are available for re-run.
Note: PFd defaults automatically to OFF after pressing the stop
key.
RUN COMPLETED PFd was ON when a power failure occurred and the run was
AFTER POWER FAIL resumed automatically.
The run was timed and automatically terminated when the set
(Message alternates run time was completed.
final run parameters) After pressing the stop key to reset, the original run parameters
are available for re-run.
Note: PFd defaults automatically to OFF when the run is
completed.
4.2.3 User Serviceable Error Messages
The following user serviceable messages may appear, interrupting a run. Refer to
this section for their cause and solution. Follow instructions on the screen to clear
the error message and resume operation.
Problem/error
message
Cause Solution
E01 NO LOAD No load detected. Verify all electrical connections.
DETECTED • Electrophoresis cell Verify buffer levels are appropriate.
not connected to the
CELL & CABLES power supply. Verify the electrophoresis application's
* PRESS STOP KEY power requirements match PowerPac
• The current load is HC output range.
less than 0.01 A.
E02 SHORT CIRCUIT Short circuit detected • Insure all electrical connections
(over current, load are making good contact and the
CELL & CABLES current is greater cables and wire electrodes are in
* POWER OFF/ON than 3.0 A). good shape.
• Accidental shorting of • Verify buffer levels are appropriate.
output leads.
• Shorting due to wrong
connections.
E04 REGULATING Regulation Error. Ensure the electrophoresis application
BELOW 5V Current drawn by the settings and power requirements
electrophoresis system match PowerPac HC output range
METHOD VALUES exceeds the set current
* PRESS STOP KEY limit of the unit, at less
than 5 V.
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