SENS EnerGenius® DC Compact Technical Manual
53
401
Hardware
Optional Hardware Error.
Hardware that
may be optional is not working properly.
This could be a bad configuration. Compare
Option Select Bits with Hardware Status Bits
to determine if perhaps a piece of hardware
is configured to be present but doesn't
actually exist on this board.
402
Hardware
Critical Hardware Error
. Critical Hardware
is not working properly.
Check Hardware Status Bits to determine the
specific hardware that is not behaving. This
may require a board replacement.
12.2.
Troubleshooting
AC LED
DC LED
Fan /
Filter
LED
Symptom
Possible Causes
Recommended Actions
OFF
OFF
-
Display AC and
DC LEDs and
display are off
1. Proper AC or DC
voltages not applied
2. Cable to display
board failure or poor
connection
3. Display board
failure
1. Using a voltmeter, check that
AC input voltage and frequency at
AC input terminal block/breaker
are in the range 188VAC
–
528VAC / 47Hz
–
63Hz or that
>60VDC is present at DC output
terminal block/breaker and that
the DC polarity is correct. Correct
charger AC input and DC output
voltage as required.
2. If step 1 doesn’t resolve issue,
remove both AC and DC power
for 1 minute, then reapply power.
3. If steps 1 and 2 don’t resolve
issue, remove front cover while
leaving cables connected and
verify the network cable at the
SENSbus port at the top of the
display board is tightly connected.
4. If none of the above steps
resolved the issue, display board
may need to be replaced. Contact
SENS.
SOLID
GREEN
FLASH or
SOLID
GREEN
-
Unable to
Communicate
using MODBUS
1. No communication
bus termination
installed
2. Communication
cable is plugged into
the wrong charger
port
3. Wiring is incorrect
4. Incorrect MODBUS
settings (baud rate,
address)
1. Verify that a terminator is
installed as directed in the
manual (note that a terminator is
not required if the charger is not
at the end of the communication
bus).
2. If terminator is installed, verify
that communication cable is
connected to ports as directed in
the manual, in the Modbus
connections section. Correct
cabling as required.
3. For serial applications, if cable
is connected correctly, verify that
