Table 3 Troubleshooting Guide - Emerson GXT5000R-208 User Manual

Table 3 Troubleshooting guide
Fault LED
classification display
Bus C & F
fault LEDs
Inverter B & F
fault LEDs
Overtemp A & F
fault LEDs
Battery D & F
overvoltage fault LEDs
Battery mode E & F
overload alarm LEDs
Bypass A, B & F
fault LEDs
Relay bonded A, C & F
on N.O. LEDs
Inverter mode
output power A, D & F
short circuit LEDs
fault
Line LED
flash warning
Battery
BAT LED
disconnected
flashing
warning
Battery fail BAT LED
warning flashing
Bypass mode
bus overvoltage All LEDs bright,
or input voltage buzzer beeping
too high fault
Input voltage All LEDs bright,
> 292 VAC buzzer beeping
BUS voltage All LEDs bright,
fault buzzer beeping
Audible
alarm
Continuous
Continuous
Continuous
Continuous
0.5 second
beep, recurring
every 1 second
Continuous
Continuous
Continuous
— —
0.5 second
beep, recurring
every 1 second
Continuous
Continuous
Continuous
Continuous
Condition
± Bus V > 450 VDC
± Bus V > 410 VDC
± Bus V < 230 VDC
|(Abnormal + Bus V)-(|-Bus V |)| > 40 VDC or
|(+Bus V)-(Abnormal |-Bus V|)| > 35 VDC
Inverter output power > 276 VAC or
Inverter output power < 140 VAC
Inverter output power short. UPS short circuit
fault.
If temperature is > 90°F (32°C) detected
NTC's temperature on CNTL pcb.
If temperature > 65°F (18°C) and < 90°F
(32°C), then transfer to bypass mode, and
wait until temperature < 40°F (5°C) then back
to inverter mode
Battery voltage > 15V per unit
Battery mode load > 105%, < 125%
Battery mode load > 125%, < 150%
Battery mode load > 150%
Try to turn unit on (inverter mode). Check
output load for shorts.
Check inverter output voltage, before inverter
soft start. If detected inverter output voltage
> 85 VAC, then set fault.
If detected inverter output power I > 70 ADC
and output voltage < 90 VDC, then increase
{short_cnt}.
If {short_cnt} > 30 any time in period of
96 ms, then set UPS short circuit fault.
Line voltage > 276 VAC
Line voltage < 170 VAC
When UPS turn off charger and detected
battery voltage < 10 VDC per unit
When the UPS is in battery test sequence
and detected battery voltage < 10 VDC per
unit
Bus overvoltage > 400 VDC or
input voltage > 292 VAC
Check input voltage—must be greater than
292 VAC.
Check the BUS voltage—must be lower than
242 VDC.
23
Response
time
80 ms
1.5 seconds
80 ms
2 minutes
Minimum
90 ms
5 cycles
5 seconds
4.5 seconds
6.4 seconds
1 minute
10 seconds
Instantaneous
Instantaneous
Instantaneous
Not specified
48 ms
160 ms or
(48 ms)
Instantaneous
Instantaneous
Not specified
Not specified
Not specified