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2.2.2 TRTC Operating Modes
Purpose: Describes the Operating modes.
TIP:
The LCD automatically displays the following modes when they change.
LCD Shows
Explanation
STANBY
(STANDBY)
This mode is displayed when the unit is first turned on. The inverter remains off and the TRTC
does not provide output power to the loads. If input line power is qualified, it automatically
switches to line mode.
ONLINE
The normal operating mode. Input line power is provided to the loads, the batteries are charging
and the TRTC is ready to provide backup power
ONBAT
The unit automatically transfers to battery when input line power is unqualified or not present. The
batteries provide power to the loads
BOOST*
The unit automatically transfers to BOOST mode to raise the lower input line voltage when output
drops below the user programmable preset limit
BUCK*
The unit automatically transfers to BUCK mode to reduce the higher input line voltage when output
raises above the user programmable preset limit
SFTEST
(SELF TEST)
When “Self-Test” mode is active, the unit will enter “Battery Mode” automatically to test or check if
output voltage and waveform is correct. After the programmed duration, the unit returns back to
“Line Mode”. Users may use “Maintenance Mode” to configure a longer time for self-test. Default
time for self-test is 1 minute.
LOWBAT
(LOW BATT)
When the unit is in “Battery Mode” the batteries begins to discharge. If the battery voltage falls
below the user programmed (40% default setting) of its capacity, “LOWBAT” warning appears.
* When enable
CD Shows
Explanation
The following mode may be programmed by the User (see Section 2.2.9)
Sense Type (Generator / Normal Mode)
This is used to broaden the input parameters to
accommodate the voltage fluctuations created by a
backup generator or a noisy line.
The factory default setting is normal, where the unit runs
on normal parameters. Switching to Generator makes it
run on noisy generator parameters.
If the unit constantly switches between line and battery
modes due to a noisy line, select generator mode to
prevent unnecessary transfers / returns
.
Normal Parameters
Line Mode
Normal Parameters
Generator Parameters
Normal Line Generator or Noisy Line