Troubleshooting
66
900-0167-01-00 Rev A
Sell Status
Sell Status messages describe conditions relating to the inverter’s grid-interactive mode. This screen is
viewed using the MATE3 Home screen’s soft keys. (See the MATE3 manual for more instructions.) One
or more messages will display
Y
(yes). If a message says
N
(no), it is not the cause of the disconnection.
If the inverter has stopped selling or charging unexpectedly, this screen may identify the reason. More
often these messages are used by a normally functioning inverter to identify external conditions that
are preventing selling or charging. (If nothing has stopped, the messages will indicate that as well.)
The acceptable limits for AC source voltage and frequency are controlled by the Grid Interface
Protection settings, which are shown in the default menus beginning on page 76. If the AC source
exceeds these limits, the inverter will stop selling and display the appropriate code. (At the same time
it will disconnect from the utility grid, with an appropriate message as shown in Table 12 on page 65.)
After the source returns to the acceptable range, the screen will begin its reconnection timer (with a
default setting of five minutes). When the timer expires, the inverter will reconnect to the utility grid
and begin selling power again.
If the AC source is unstable, it may become unacceptable before the timer expires. This may cause the
timer to continually reset. It is possible for brief fluctuations to occur that are too fast to be seen on a
DVM. If this happens, the appropriate message will still appear on the system display for a short time
to help troubleshoot the problem.
Additionally, undersized wires or bad connections can result in local voltage problems. If a
Voltage
Too Low
or
Voltage Too High
message is accompanied by voltage changes that do not appear at the
main utility connection, check the wiring.
Table 13
Sell Status Messages
Sell Status
Definition
Selling Disabled
The
Grid-Tie Enable
command has been set to
N
(no).
Qualifying Grid
All utility grid conditions are acceptable. The inverter is running
a timed test during which it confirms the grid quality. The timer
is shown on the screen. At the end of that time, the inverter
may be ready to sell.
Frequency Too Low
The utility grid’s AC frequency is below the acceptable range
for selling.
Frequency Too High
The utility grid’s AC frequency is above the acceptable range
for selling.
Voltage Too Low
The utility grid’s AC voltage is below the acceptable range
for selling.
Voltage Too High
The utility grid’s AC voltage is above the acceptable range
for selling.
Battery < Target
The battery voltage is below the target voltage for that stage
(Float, Selling, etc.). No excess energy is available to sell.
