S4K2UC SERIES USER MANUAL | 27
3.1.2 Standby/Manual Bypass Button
The Standby/Manual Bypass button controls output power to connected load(s) and has two functions (see Table 5).
Table 5: Functions of Standby/Manual Bypass Button
Function Operation Description
Manual Bypass Press the button once and hold it for about 2 seconds
3
To initiate a manual transfer of the connected loads to the
internal bypass, if available
Standby
Press the button twice within 4 seconds (hold for at least a
half a second each time) while the UPS is in Manual Bypass
or Battery Mode
4
To shutdown the UPS and shut o all power to the
connected loads
3
If the bypass is not available due to voltage or frequency, pressing this button once will be ignored
4
Perform all necessary shutdown procedures on connected loads before turning o the UPS
3.2 Indicators
The operation and display panel has seven indicators (see Figure 23). The indicators can be divided into two groups
according to the applications: level indicators and UPS status indicators.
3.2.1 Battery Level Indicators
The Battery Level indicator is composed of ve sets of LED bars that illuminate and ash to indicate the battery capacity
level. The S4K2UC battery capacity level is shown in 20% increments (± 5%). The Battery Level indicators will illuminate as
shown in Figure 24.
0 - 20%
Fully
Charged
81 - 100%
61 - 80%
41 - 60%
21 - 40%
ON ON ON ON ON
ONONONONON
OFFON ON ON ON
ON ON OFF OFF OFF
ON OFF OFF OFF OFF
ONON ON OFF OFF
Discharging
Flash OFF OFF OFF OFF
OFFON ON ON Flash
ONON Flash OFF OFF
ON Flash OFF OFF OFF
FlashONONONON
ON ON ON ON ON
Charging
Figure 24: Battery Level indicators
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