Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 73
Uninterruptible Power Supply
1) Bypass setting (only available or effective on bypass mode and standby mode)
Interface
Description
Bypass:
Status: Open
Disable HighLoss V: 240V
LowLoss V: 110V HighLoss
F: 54Hz
LowLoss
F: 46Hz
1. Status
1.1 Open/Forbid:
Open: Bypass allowed. When selected, UPS will run at Bypass mode depending on
bypass enabled/disabled setting.
Forbid: Bypass not allowed. When selected, it’s not allowed for running in Bypass
mode under any situations. The default setting is Open.
1.2 Enable/Disable
This option appears only when Bypass status is set to “Open”.
Enable: Bypass enabled. When selected, Bypass mode is activated.
Disable: Bypass disabled. When selected, automatic
bypass is acceptable, but “manual bypass” is not available. “Manual bypass” means
users manually operate UPS to Bypass mode (for example, in AC mode turning off
the UPS to Bypass mode). Then, the UPS will go to bypass mode but without output
if it is turned off in AC mode. The default setting is Enable.
NOTE: The following items are only available in bypass mode:
2. HighLoss V:
Set the acceptable high voltage for bypass.
For 3-3 10K, 3-1 10K and 1-1 10K models:
Setting range is from (Rated Output Volt +11V) to 276V
and the default value is 264V.
For 2-2 6K and 3-3 10K LV models:
Setting range is from (Rated Output Volt +6V) to 155V
and the default value is 140V.
3. LowLoss V:
Set the acceptable low voltage for bypass.
For 3-3 10K, 3-1 10K and 1-1 10K models:
Setting range is from 110V to (Rated Output Volt - 11V)
and the default value is 110V.
For 2-2 6K and 3-3 10K LV models:
Setting range is from 88V to (Rated Output Volt - 6V) and the default value is 88V.
4. HighLoss F:
Set the acceptable high frequency for bypass.
50 Hz system: Setting range is from 51Hz to 54 Hz.
60 Hz system: Setting range is from 61Hz to 64Hz. The default value is 54.0Hz/64.0Hz.
5. LowLoss F:
Set the acceptable low frequency for bypass.
50 Hz system: Setting range is from 46.0Hz to 49.0Hz.
60 Hz system: Setting range is from 56.0Hz to 59.0Hz. The default value is 46Hz/56Hz.
