Troubleshooting - Delta R4E User Manual

4.2.Troubleshooting

■ Responsive actions that should be taken in cases where the following symptoms occur are described.
Symptom
"Battery Under Voltage"
appears in Error Events
Log.
"Battery Communication
Fail" appears in Error
Events Log.
Nothing is displayed on
the screen.
Nothing is displayed even
when the screen is touched.
The screen is turned on
when not in operation.
AC Adapter is hot
Total accumulated power
of Inverter and the total
accumulated amount of
power on the Power
Monitor vary.
Voltage elevation
suppression and
temperature elevation
suppression are displayed.
Performance data is lost.
Alternatively, the content
of the performance data
has changed.
Verification details
Since reversed wiring may
cause battery voltage lower
It means there is no
communication between
inverter and battery.
Is the backlight turned off?
Has the AC Adapter come
off the power outlet or the
Power Monitor?
Is any error icon being
displayed?
Has any power failure
occurred?
How hot is it getting?
Have you replaced the
Inverter?
Verify the frequency and
duration of occurrence.
Has the time been advanced
or reverted by 15 minutes
or more?
Has there been any power
failure?
87
When Something Seems Wrong (Troubleshooting)
Responsive action
Please check if wiring to the battery is reversed.
If the issue cannot be cleared, please contact with
local representative.
Please check communication status between
inverter and battery
If there is no communication, check if communication
wiring is reversed or unusual.
If the issue cannot be cleared, please contact with
local representative.
Touching the screen will trigger the display of the
screen.
The duration of time the screen remains turned on
can be changed in the Screen Setting.
⇒ "Screen Setting" (Page 68).
Connect the AC Adapter properly to the power outlet
and to the Power Monitor.
Contact your retailer if the symptom persists even
after a proper connection has been established.
The screen is turned on and the error message is
displayed automatically when a malfunction occurs.
Verify the displayed error message.
⇒ Refer to the Installation and Maintenance Manual
of the Inverter.
The Power Monitor restarts and the screen remains
turned on for the duration of the set sleep time when
the system is restored from a power failure condition
after a power failure occurs.
Heating does occur under normal circumstances while
the system is in use.
If the AC Adapter is so hot that you cannot touch it by
hand, pull it off the power outlet and consult your retailer.
It is normal in the following case:
The accumulated amount of power is accumulated
for each Inverter and Power Monitor, respectively.
Therefore, the values for the accumulated amount
of power may be different on a Inverter and those
displayed on a Power Monitor.
The Voltage Elevation Suppression function and the
Temperature Elevation Suppression function are
functions that are triggered to ensure safe operation
of the system.
There is no malfunction with the system if the frequency
is low or when they occur for brief intervals.
Consult your retailer if the frequency is high or when
the system is not restored for a long period of time.
The past performance data may be affected in
instances where date/time settings are performed
or when a power failure occurs.