Operating The Rapid Shutdown Controller; Triggering The Rapid Shutdown Function; Resetting The Rapid Shutdown Function - SMA RSB-2S-US-10 Manuel D'installation

Rapid shutdown system
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9 Operating the Rapid Shutdown Controller

9
Operating the Rapid Shutdown Controller
9.1

Triggering the Rapid Shutdown Function

• Press the emergency switch on the Rapid Shutdown Controller.
☑ The red LED on the Rapid Shutdown Controller lights briefly or flashes. The Rapid Shutdown
Box reduces the voltage on the output string side. As soon as the voltage is within the
permitted range, the green LED on the Rapid Shutdown Controller glows constantly.
☑ The green LED on the Rapid Shutdown Controller glows constantly. The Rapid Shutdown
System is active and the voltages on the output string side of the Rapid Shutdown Box are
≤30 V.
✖ None of the LEDs on the Rapid Shutdown Controller are glowing?
Several causes are possible: Either the irradiation on the PV array is too low and, thus, the
supply voltage of the Rapid Shutdown System insufficient or the installation of the Rapid
Shutdown System is faulty or the Rapid Shutdown Box is defective.
• Make sure that the supply voltage of the Rapid Shutdown System is sufficient.
• Ensure that the Rapid Shutdown System is installed correctly.
• When the Rapid Shutdown System has enough supply voltage and is installed correctly
and still none of the LEDs are glowing, the Rapid Shutdown Box is faulty and must be
replaced. Contact the Service (see Section 12 "Contact", page 42).
✖ The red LED on the Rapid Shutdown Controller glows constantly?
The Rapid Shutdown Box is defective and the Rapid Shutdown System is not active.
• Contact the Service (see Section 12 "Contact", page 42).
9.2

Resetting the Rapid Shutdown Function

1. Ensure that the PV system can be reset to operating mode.
2. Insert the key into the keyhole of the emergency switch on the Rapid Shutdown Controller and
turn the key clockwise.
If the key for resetting the Rapid Shutdown Function is lost, contact the Service and request a
new key.
☑ The emergency switch returns to its starting position.
3. Remove the key from the keyhole and store safely in a location accessible to the PV system
operator.
36
RSS-US-IA-xx-14
SMA Solar Technology America LLC
Installation Manual

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