Tripp Lite S3M80K Owner's Manual

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4. Operation

4.3.6.2.5 Bypass (BYP) Setup

Bypass Volt Prot Lower Limit (%): When the dierence between the bypass voltage and the rated voltage exceeds

the lower threshold for the bypass voltage, the system determines that the bypass voltage is abnormal and that bypass

is unavailable. The value can be -10%, -15%, -20%, -30% or -40%. The default value is -40%.

Bypass Volt Prot Upper Limit (%): When the dierence between the bypass voltage and the rated voltage exceeds

the upper threshold for the bypass voltage, the system determines that the bypass voltage is not normal and that

bypass is unavailable.

Notes:

• Upper limit: +10,+15,+20 or 25% (default:+20%)

• Lower limit:-10,-20,-30 or -40 (default: -30%)

Bypass Freq Tracking Range (%): When the dierence between the bypass input frequency and the rated frequency

is greater than this value, the system determines that the bypass frequency is not normal and that the bypass is

unavailable. The value range is 1%, 2%, 4%, 5% (default), 10%.

Bypass Rate Tracking Rate (Hz/s): Inverter frequency tracking to bypass frequency rate. The value range is 0.5 to 2.

The default value is 1.

Power supply upon BYP SCR over temp: Species whether to start bypass mode when over temperature occurs. The

default is enable.

Bypass Switches Limit: Cross currents occur during the transfer between bypass mode and normal mode, which

impacts the system. This parameter species the number of transfers between bypass mode and normal mode within 1

hour to ensure system security. The value range is 3 to 10 and is 10 by default.

EPO transfers To BYP: Species whether the system transfers to bypass mode when the EPO button is pressed. The

default is disable.

Figure 4-32A: Bypass Settings

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Tripp Lite S3M80K series 3-Phase 208/220/120/127V 80kVA/kW Double-Conversion UPS - Unity PF, External Batteries Required