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1 Safety information and precautions SV800/SV800A User Manual
2
WARNING
Lift and handle the inverter gently when carrying, do not hold the front cover with one hand only. It
may hurt your feet or damage the inverter if it falls off.
Prevent conductive objects such as screws and metal shavings from falling into the inverter during
installation. It may cause the inverter to malfunction or be damaged.
Avoid places with harsh environments such as oil mist, dust suspension, vibration, etc. When
installing in a cabinet, please ensure that the ambient temperature in the cabinet is within the allowed
temperature range of the inverter. Otherwise it may cause the inverter to malfunction or be damaged.
1.1.3 Safety precautions for wiring
DANGER
Do not perform wiring work expect for electrical construction professionals. Otherwise it has risk of
electric shock and fire.
Before wiring the inverter terminals, you must cut off all power connected to the inverter. The waiting
time after the power is cut off is not shorter than the time marked on the inverter. Also ensure the DC
voltage b1 ~- or + 2 ~- is less than 30V. What's more, the inverter must properly regulate
the ground wire. Otherwise it has a danger of electric shock.
Please connect the input power cable and the motor cable correctly. Never connect the input power to
the output terminals (U, V, W) of the inverter. Pay attention to the marks on the terminals and do not
connect the wrong wires. Otherwise it has risk of damage to the inverter.
Never connect the braking resistor directly between the DC bus positive terminal +1 or +2 and the
negative terminal -. Otherwise it has risk of fire and damage to the inverter.
The main circuit terminal wiring screws must be tightened well. For the wire diameter, please refer to
the recommendations in this manual. Otherwise it has risk of fire and damage to the inverter.
It is forbidden to connect AC220V voltage level signals to terminals except for the control terminals
TA, TB, TC and MA, MB, and MG. Otherwise is has risk of damage to the inverter.
WARNING
Ensure that the rated voltage of the inverter is consistent with the voltage of the AC power supply.
Otherwise it may cause damage to the inverter.
The encoder signal line should uses shielded wire, and the single end of the shield layer should
reliably grounded. Otherwise it may cause the inverter to malfunction.
1.1.4 Safety precautions for debugging and operation
DANGER
Ensure the front cover installed well before connect the input power supply. After power-on, do not
open the cover and operate it as there is a high voltage inside. Otherwise it has a danger of electric
shock.
Please ensure the safety and reliability around the motor and mechanical load during motor electric
parameters auto-tuning and the inverter operation. Otherwise it has risk of injury.
Non-professional technicians are prohibited from testing signals during power-on. Otherwise it has
risk of electric shock and damage to the inverter.
Forbidden to repair the motor and mechanical equipment during power-on. Otherwise it has risk of
electric shock and personal injury.