Using a PT Controller: Operation/Monitoring
Page 130
©
2017 Sensata Technologies
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Set PT Alarm Delay (OFF Delay)
–
This setting determines how long the
Alarm OFF Volts
parameter must be continuously maintained before the alarm turns off. Use this setting to
delay the time that the alarm turns off once the battery voltage trip point has been reached—
so the alarm does not turn off unnecessarily.
Default setting:
10 Sec
Range:
0-127 Sec, 1-127 Min (1-sec increments up to 127 secs, then 1-min increments)
• 07H
PT Power Save Display
–
The PowerSave feature is provided to conserve energy by
turning off any unneeded indicator. While the PT controller is in the PowerSave mode, the
period (or decimal) of each LED segment (3 periods total) comes on one at a time (from left
to right, then right to left). The rest of the PT display and its four relevant LED indicators are
off to conserve energy. During the day—while charging—the charger status LED will still be
on during PowerSave; at nighttime—when not charging—the charger status LEDs will be off.
The controller goes into PowerSave mode if there hasn’t been a button press or fault message
for a set period of time, depending on the setting (
15 Min
is the default setting). Whenever
the controller goes into PowerSave mode, the display and its relevant LEDs can be reactivated
by pressing any pushbutton.
If the PT Aux Relay is energized, the AUX LED remains on during PowerSave mode. If a fault
occurs during PowerSave, the display and Fault LED come on and stay on as long as the fault
is active.
Note:
If more than one PT controller is connected in your system, you can view/edit the data for
each individual controller. See Figure 12-8 for instructions on navigating this menu.
Default setting:
15 Min
Range:
OFF, 1-60 Min (1-min increments)
12.2 Operating/Monitoring the PT Controller using the ME-ARTR
This section provides the PT menus under the ME-ARTR’s CTRL and METER buttons that determine
how to control and operate the charge controller.
12.2.1 Operating the PT Charge Controller
The charge mode is automatically activated and begins when acceptable PV power is connected
to the PV input of the controller. When the controller is actively charging, the display may show:
Bulk Charging
,
Absorb Charging
,
Float Charging
, or
Equalizing
.
CTRL:
05A PT Chg Ctrl
Generally, the
PT Control
menu is left in the
Multi-Stage
selection. To change this selection, press
the CTRL button and rotate the SELECT knob to the
05 PT Control
menu, and then press the
SELECT knob to enter this menu.
Default setting:
Multi-Stage
Range:
Multi-Stage, Charger Off, Start Float, Start Bulk, Start EQ (5sec)
•
Multi-Stage
– This charge pro
fi
le causes the charger to automatically operate through the
multi-stage (Bulk, Absorption, and Float) charge cycles. When PV is connected and charge
mode begins
¹
, the battery voltage is monitored to determine the charging stage. If the battery
voltage is low, the charger begins Bulk charging. If the DC voltage is high, the charger skips
the Bulk and Absorb charge stages and goes directly to the Float charge stage.
Info:
Unlike the inverter/charger, the PT controller’s multi-stage charge pro
fi
le does
not go silent. Once the Bulk and Absorption charge stages are complete, the controller
enters the Float charge stage (or, the Constant Current and Constant Voltage modes if
battery type CC/CV is selected).
Note¹
–
When the charge mode begins, if the
07A Battery Type
selection is
CC/CV
the charger
enters Constant Current mode.
•
Charger Off
– The
Charger Off
selection stops the controller from charging. Even if PV is
available on the PV input, the controller is not allowed to charge. To resume charging, select
a setting other than “
Charger Off
”.
Содержание ME-ARTR
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