Commissioning And Running; Maintenance And Component Replacement - INVT SPC Series Operation Manual

SPC Series Solar Pump Inverter
cross sectional area).
(+) and (-) are the DC power input terminals, while U, V, and W are the output
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motor-connection terminals. Connect the input power and motor cables properly;
otherwise, the inverter may be damaged.

1.3.2 Commissioning and running

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Do not switch on or switch off the input power supplies of the inverter frequently.
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If the inverter has been stored for a long time without being used, check the
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capacitors, perform capacitor reforming, and carry out pilot run for the inverter
before the use.
Close the inverter front cover before running; otherwise, electric shock may occur.
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1.3.3 Maintenance and component replacement

Use proper torque to tighten screws.
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During maintenance and component replacement, keep the inverter and its parts
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and components away from combustible materials and ensure they have no
combustible materials adhered.
Do not carry out insulation voltage-endurance test on the inverter, or measure the
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control circuit of the inverter with a megohmmeter.
Cut off all power supplies connected to the inverter before terminal
wiring, and wait for at least the time designated on the inverter after
disconnecting the power supplies.
High voltage presents inside the inverter during running. Do not carry
out any operation on the inverter during running except for keypad
setup.
The inverter cannot be used as an "Emergency-stop device".
The inverter cannot act as an emergency brake for the motor; it is a
must to install a mechanical braking device.
Only trained and qualified professionals are allowed to perform
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maintenance, inspection, and component replacement for the inverter.
 Cut off all power supplies connected to the inverter before terminal
wiring, and wait for at least the time designated on the inverter after
disconnecting the power supplies.
 During inverter maintenance and component replacement, take
measures to prevent screws, cables and other conductive matters from
falling into the internal of the inverter; in addition, take electrostatic
discharge protection measures for the inverter and its internal
components.
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Safety precautions