Safety Information And Precautions - Veichi JT550 Series Manual

Safety Instructions
Safety definition
DANGER
It is essential for avoiding a safety hazard. Serious physical injury or even death may occur if
related requirements are not followed.
WARNING
It is necessary for avoiding a risk of damage to the product or other machine.
WARNING
As high voltage still presents in the bus capacitor after power off, wait for at least five minutes (or
15 min / 25 min, depending on the warning symbols on the machine) after power off to prevent electric
shock.
Electrical Safety
Extreme care must be taken at all times when working with the AC Drive or within the area of the AC
Drive. The voltages used in the AC Drive can cause severe electrical shock or burns and is potentially
lethal. Only professional and qualified personnel should be allowed to work on AC Drives.Read the
operation manual before operating on the equipment.
The guidelines and recommendations should be followed in order to gain long term trouble free operation
as the lifetime of the AC Drive is dependent on the working environment and correct handling of the
product in the initial installation stage.
Delivery and installation
Select appropriate tools for delivery and installation to ensure a safe and proper running of the
AC Drive and avoid physical injury or death. To ensure physical safety, the installation staff should take
mechanical protective measures, wearing exposure shoes and working uniforms;
R, S and T are the power input terminals, and U, V and W are output motor terminals. Connect
the input power cables and motor cables properly; otherwise, damage to the AC Drive may occur.
Connect the optional brake parts (brake resistors, brake units or feedback units) according to the wiring
diagram.Do not touch the AC Drive with wet items or body parts; otherwise, electric shock may occur.
When using an earth leakage circuit breaker, use a residual current operated protective device (RCD) of
type B (breaker which can detect both AC and DC). Leakage current can cause unprotected components to
operate incorrectly. If this is a problem, lower the carrier frequency, replace the components in question
with parts protected against harmonic current, or increase the sensitivity amperage of the leakage breaker
to at least 200 mA per drive.

Safety Information and Precautions

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JT550 Series Inverter Manual