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![](https://files.manualsfile.com/17072350-s3m50k-60k4t/bg3b.png)
59
4. Operation
4.3.6.2.5 Bypass (BYP) Setup
Bypass Volt Prot Lower Limit (%): When the dierence 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 dierence 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 dierence 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: Species 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 species 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: Species 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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