Using a PT Controller: Operation/Monitoring
©
2017 Sensata Technologies
Page 135
METER: 07F Power to Bat
This read-only menu shows two separate
fi
elds to display power out of the PT controller system
(press and then rotate the SELECT knob to view/reset power out for each individual connected
PT controller):
• Life:
This display shows the total power out of the controller since it was installed (shown in
Megawatt-hours or MWh). To reset this display, access the
Reset
menu, then press and hold
the SELECT knob for approximately 5 seconds. Once the
Reset
meter is cleared, return to the
Life
menu, and then press and hold the SELECT knob approximately 10 seconds to clear the
Life
meter. This meter value has a maximum range of 655.36 MWh (.01 MWh resolution).
Info:
The
Life
menu may be reset if the PT controller changes ownership, or if the
user purchases a new array and wants to only monitor lifetime power out of the PT
controller to the new array.
• Reset:
This display shows the total power out of the controller since the last time it was reset
(shown in Kilowatt-hours or kWH). To reset this display, press and hold the SELECT knob for
5 seconds. This meter value has a maximum range of 6553.6 kWH (0.1 kWH resolution).
METER: 07G Ground Fault
This read-only menu shows the real-time measurement of the controller system’s ground fault
current. Press and then rotate the SELECT knob to view the ground fault current for each individual
connected PT controller.
Note:
This meter can be monitored to give an indication of developing ground faults.
METER: 07H PT Data
This menu enables you to access the PT Data matrix (see Figure 12-6). The PT Data feature uses
the ME-ARTR’s internal clock to capture daily PT data events (see the list of data events below).
Each separate data capture includes PT data from a designated time period (12:00AM-11:59PM
each day). The PT data summary for each time period is displayed in reverse chronological order
(i.e.,
fi
rst today’s data, then yesterday’s data, and so on up to 255 days prior to today). Figure
12-6 also provides an example of how to navigate the PT Data matrix.
Note:
If there is no PT data, then “
No Data Recorded
” displays on the ME-ARTR when you select this
menu. PT data is continually updated for the current day (i.e., Today’s data).
Info:
Press and hold the SELECT knob for 3 seconds to return to the
07H PT Data
main
menu from any screen within the PT Data matrix.
Info:
The ME-ARTR’s time clock is a critical piece in accurately capturing that day’s PT
data. Refer to the
SETUP: 01 System Setup/01A Set Clock
menu in Section 3.3.4 for
information on setting the router’s time clock.
Note:
The ME-ARTR obtains power from the inverter. If the ME-ARTR is disconnected
from the inverter, the ME-ARTR’s time clock will reset.
• Harvest Total
– Displays the total amount of energy in kilowatt hours (shown as kWH)
delivered to the batteries. The maximum range is 25.5 kWH (0.1 kWH resolution).
• Max
PV
– Displays the highest voltage received from the PV array and the time of day that it
occurred (to nearest 6-minute increment). The voltage shown on the display is averaged each
second, and this allows you to check your PV charging system to ensure the PV voltage does
not normally exceed the Upper V
MP
level.
• Max
Bat
– Displays the highest battery voltage since the last reset and the time of day that it
occurred (to nearest 6-minute increment). The voltage shown on the display is averaged each
second, and is helpful for troubleshooting or detecting an over-charge condition.
• Min
Bat
– Displays the lowest battery voltage since the last reset and the time of day that it
occurred (to nearest 6-minute increment). The voltage shown on the display is averaged each
second, and is helpful for troubleshooting or detecting an over-discharge condition.
• On/Work
Time
– Displays the number of hours of active production by the PV array (to
nearest 6-minute increment).
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