Huawei SUN2000 Series User Manual page 113

SUN2000-(8KTL-20KTL)-M2
User Manual
When all PV modules connected to the solar inverter are configured with
optimizers, the PV system shuts down quickly and reduces the output voltage of
the PV string to below 30 V within 30 seconds.
Perform the following step to trigger rapid shutdown:
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Issue 01 (2020-07-02)
NO TE
If optimizers are configured for some PV modules, the rapid shutdown function is not
supported.
Method 1: Turn off the AC switch between the solar inverter and the power
grid.
Method 2: Set the DC switch at the bottom of the SUN2000 to OFF. (Turning
off an extra switch on the DC side of the SUN2000 will not trigger rapid
shutdown. The PV string may be energized.)
Method 3: To enable the rapid shutdown function, you need to connect the
access switch to pins 13 and 15. The switch is closed by default. The rapid
shutdown is triggered when the switch changes from closed to open.
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Rapid Shutdown
D Rapid Shutdown
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