INFOSEC M5T Manuel Utilisateur page 122

bypass frequency within 46~54 Hz for 50Hz system or within 54~64 Hz for 60Hz
system. Disable is the default setting.
➢
Bypass Forbid:
◼ Enable: Bypass Forbid is enabled. It's not allowed for running in Bypass mode under
any situations.
◼ Disable: Bypass Forbid is disabled. UPS will run in Bypass mode. It is the default
setting.
➢
Neutral Line Check: Check if neutral line is correctly connected or not.
◼
Disable: Disable the neutral loss detection function. The UPS will not detect the
neutral loss or not.
◼
Auto: The UPS will automatically detect the neutral is lost or not. If neutral loss is
detected, an alarm will be generated. If the UPS is turned on, it will transfer to battery
mode. When neutral is restored and detected, the alarm will be muted automatically
and the UPS will go back to normal mode automatically.
◼
Check: The UPS will detect the neutral loss or not only when first commission. If
neutral loss is detected, an alarm will be generated. If the UPS is turned on, it will
transfer to battery mode. When neutral is restored, the alarm will NOT be muted
automatically and the UPS will NOT go back to normal mode automatically. Please
be sure to enter this selection and re-start the UPS again to mute alarm.
➢
ISO Compensation
When UPS is connected to output isolation, it will compensate the output voltage.
➢ Bypass UPS off: Select the bypass status when manually turning off the UPS. This
setting is only available when "Bypass forbid" is set to "Disable".
◼ Enable: Bypass enabled. When selected, bypass mode is activated.
◼ Disable: Bypass disabled. When selected, no output through bypass when manually
turning off the UPS. To protect power continuity on output load, when UPS fault or
UPS transfers to bypass due to overload on AC mode, the UPS will force to turn on
bypass output by default.
➢
Bypass VOL Range: Set the bypass voltage range.
◼ L: Low voltage point for bypass. The setting range is 176V ~ 209V when the UPS is
HV system. The setting range is 96V ~ 110V when the UPS is LV system.
◼ H: High voltage point for bypass. The setting range is 231V ~ 264V when the UPS is
HV system. The setting range is 139V ~ 146V when the UPS is LV system.
INFOSEC UPS SYSTEM – 15, rue du Moulin – 44880 Sautron, France – www.infosec-ups.com
121
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Electrical Setting Page 2