
Indicates the estimated backup time. H: hours, M: minute, S: second.
Indicates the configuration items
Indicates the warning and fault codes
Indicates that the UPS alarm is disabled.
Indicates the input voltage, input frequency, input current, battery voltage,
battery current, battery Power, ambient temperature, output voltage,
output frequency, load current and load percent.
Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.
Indicates overload.
Indicates that programmable management outlets are working.
Indicates the UPS connects to the mains.
Indicates the battery is working.
Indicates charging status
Indicates the bypass circuit is working.
I. LCD Panel
Quick Guide
PowerWalker VFI CG PF1 Series

Indicates the ECO mode is enabled.
Indicates the AC to DC circuit is working.
Indicates the PFC circuit is working.
Indicates the inverter circuit is working.
Indicates the UPS is working in converter mode.
Indicates the output is working.
Indicates the battery level by 0-24%, 25-49%, 50-74%, and 75-100%.
Indicates low battery.
1. Programmable outlets:
connect to non-critical loads.
2. Output receptacles:
connect to mission-critical loads.
3. AC input
4. Network/Fax/Modem surge protection
5. USB communication port
6. RS-232 communication port
7. SNMP intelligent slot
8. Emergency Power Off connector (EPO)
9. External battery connection
II. Rear panel view
1K/1.5K 2K 3K
III. Communication connection

Sounding every 10
seconds
Sounding 2 beep every 10
seconds
Apart from standard USB Port, the UPS is equipped with RS-232. Those two ports do not work
at the same time.
IV. Modes and warnings

Sounding every 2 seconds
(At this time, UPS is off to
remind users something
wrong with battery)
Out of bypass voltage
range
Bypass frequency
unstable
V. Frequency Converter Mode
When input frequency is within 40 Hz to 70 Hz, the UPS can be set at a constant output
frequency, 50 Hz or 60 Hz. The UPS will still charge battery under this mode. Frequency
Converter requires de-rating of the UPS Power to 80%.
VI. Button operation
ON/Mute Button
Press and hold ON/Mute button for at least 2 seconds to turn on the UPS.
When the UPS is on battery mode, press and hold this button for at least 3 seconds to
disable or enable the alarm system. But it’s not applied to the situations when warnings
or errors occur.
Press this button to display previous selection in UPS setting mode (up key)
Press and hold ON/Mute button for 3 seconds to enter UPS self-testing while in AC
mode, ECO mode, or converter mode.
OFF/Enter Button
Press and hold this button at least 2 seconds to turn off the UPS. UPS will be in standby
mode under power normal or transfer to Bypass mode if the Bypass enable setting by
pressing this button.
Press this button to confirm selection in UPS setting mode.
Select Button
Press this button to change the LCD message for input voltage, input frequency, battery
voltage, output voltage and output frequency. It will return back to default display when
pausing for 10 seconds.
Press and hold this button for 3 seconds to enter UPS setting mode when UPS is in
standby mode or bypass mode.
Press this button to display next selection in UPS setting mode. (down key)
ON/Mute + Select Button
When the main power is normal, press the two buttons simultaneously for 3 seconds.
Then UPS will enter to bypass mode. This action will be ineffective when the input
voltage is out of acceptable range.
In setting mode, press the two buttons simultaneously for 0.2s to exit the setting mode.
VII. UPS Setting

Enable or Disable (default)
Enable or Disable (default)
ECO voltage range setting
Upper Limit for Input Voltage
Bottom Limit for Input Voltage
Upper Limit for Input
Voltage
Bottom Limit for Input
Voltage
Enable or Disable (default) bypass mode
Bypass Input Voltage setting
Upper Limit for Input Voltage
Bottom Limit for Input Voltage
Upper Limit for Input
Voltage
Bottom Limit for Input
Voltage
Bypass frequency range setting
Upper Limit for Input Frequency
Bottom Limit for Input Frequency
Upper Limit for Input
Voltage
Bottom Limit for Input
Voltage
Enable or Disable (default)
Programmable outlets setting
Backup time limit in minutes for
programmable outlets. 0 actually means
10s and 999 means disabled
Autonomy limitation setting
Backup time limit in minutes. 0 actually
means 10s
Total Power of batteries in Ah (2 strings of
9Ah means 18Ah regardless of the length
of the string)
Maximum charger current setting
1 / 2 / 4 / 6
/ 8 / 10 / 12
Total Power of batteries in Ah (2 strings of
9Ah means 18Ah regardless of the length
of the string)
Charger boost voltage setting
Boost Charging voltage per cell. Each
battery has 6 cells.Default is 2.36V/cell
means 14.16V/bat
Charger float voltage setting
Float Charging voltage per cell. Each
battery has 6 cells.Default is 2.28V/cell

Active Open (default). EPO will be
activated if pins 1 and 2 are not shorted
Active Close. EPO will be activated if pins
1 and 2 are shorted
External output isolation
transformer connection
Allow or disallow (default) external
output isolation transformer connection.
Display setting for autonomy time
EAT will display the remaining autonomy
time (Default). RAT will show
accumulated autonomy time.
Acceptable input voltage range
setting
Upper Limit for Input Voltage
Bottom Limit for Input Voltage
Upper Limit for Input
Voltage
Bottom Limit for Input
Voltage
110 / 120 /
130 / 140 /
150 / 160
160VAC/140VAC/120VAC/110VAC ± 5 %
175VAC/155VAC/135VAC/125VAC ± 5 %
< 5% @ 205-245VAC
THDU < 1.6% @ input and full linear load condition
Maximum charger current setting
Please set the appropriate charger current based on battery Power used. The recommended
charging current is 0.1C~0.3C of battery Power as following table for reference.
VIII. Technical Specification

Frequency
Synchronized
Range
50 Hz ± 0.1 Hz or 60Hz ± 0.1 Hz (Batt. Mode)
< 2 % THD (Linear Load) ; < 4 % THD (Non-linear Load)
Zero from AC Mode to Battery Mode
Below 4ms from Inverter to Bypass
>89% @ full charged battery
>91% @ full charged battery
>96% @ full charged battery
3 hours recover to 95% Power for internal battery@ 2A charging
current
Default 2A, max. 12A
adjustable
Default: 2A, Max: 8A adjustable
20-95 % RH @ 0- 40°C (non-condensing)
Less than 50dBA @ 1 Meter (With fan speed control)
* Derate Power to 80% of Power when the output voltage is adjusted to 200VAC or 208VAC.