Solmetric PVA-1000S, User Manual

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5 Troubleshooting PVA Operation
5-3
Current overload pulse
In this case, clicking on the "Disabled" message pops up a caution that a significant
current overload pulse was detected. Check to be sure the inverter or other parts of
the array were not inadvertently connected during the measurement. Also, certain
high efficiency and thin film PV modules generate high discharge current pulses. Do
not measure these types of modules in parallel.
"Paused" message
When the message “Paused” appears in the indicator the I-V Measurement Unit has been
temporarily stopped because you pressed the LED pushbutton. It is a normal part of the
operation of the Unit. In this Paused condition, PV source connections may be changed
without interrupting a measurement. To return to the normal state, press the LED
pushbutton again.
Clicking on the Status indicator in this state pops up a message listing the present battery
voltage compared with the shutdown voltage level. It also advises that the measurement
is paused and that PV source connections may be changed without interrupting a
measurement.
“No USB Wireless” message (PVA-1000S and PVA-600+)
This means that the PC cannot find the wireless USB adapter used to communicate with
the I-V Measurement Unit and SolSensor. Plug the USB adapter into an open USB port.
You may need to go to the Utilities menu, select Settings, and follow the instructions to
locate the USB adapter. Be aware that each I-V Measurement Unit is matched with the
USB adapter it was shipped with; mixing them up will make communications impossible.
Matching USB adapters to I-V Measurement Units allows multiple PV analyzers to be
used on large projects without disturbing each other's wireless links. The PVA-1500xx
does not require a wireless USB adapter.
“No I-V Measurement Unit” message (PVA-1000s and PVA-600+)
In this case, the PC has found the wireless USB adapter, but cannot communicate with
the I-V Measurement Unit. If the I-V Measurement Unit is switched off, turn it ON. If the
LED is blinking quickly, the I-V Measurement Unit is trying to link. Check that the
correct (matched) USB wireless adapter is plugged into the PC, and that the PC and I-V
Measurement Unit are within wireless range of one another. The PVA-1500xx does not
require a wireless USB adapter.
“Searching for I-V Unit” message
With the PVA-1000s or PVA-600+ this message is displayed when the Wireless USB
Interface is installed but the I-V unit is not connected to it. The I-V Unit’s pushbutton
LED also blinks rapidly when it is not connected wirelessly to a Wireless USB Interface.
Make sure that the I-V Unit is turned on and is within wireless range.
With the PVA-1500xx this message is displayed when the PC has not yet connected with
the WiFi hotspot created by the PVA-1500xx I-V Unit. The I-V Unit’s pushbutton LED