EVBUM2775/D

www.onsemi.com

5

SAFETY PRECAUTIONS

It is mandatory to read the following precautions before

manipulating the SECO−1KW−MCTRL−GEVB.

Table 2.

SECO−1KW−MCTRL−GEVB

The ground potential of the system is biased to a negative DC bus voltage potential. When measuring voltage

waveform by oscilloscope, the scope’s ground needs to be isolated. Failure to do so may result in personal

injury or death

The ground potential of the system is NOT biased to an earth (PE) potential. When connecting the MCU board

via USB to the computer, the appropriate galvanically isolated USB isolator have to be used. The recommended

isolation voltage of USB isolator is 5 kV

SECO−1KW−MCTRL−GEVB system contains DC bus capacitors which take time to discharge after removal of

the main supply. Before working on the drive system, wait ten minutes for capacitors to discharge to safe volt-

age levels. Failure to do so may result in personal injury or death.

Only personnel familiar with the drive and associated machinery should plan or implement the installation,

start−up and subsequent maintenance of the system. Failure to comply may result in personal injury and/or

equipment damage.

The surfaces of the drive may become hot, which may cause injury.

SECO−1KW−MCTRL−GEVB system contains parts and assemblies sensitive to Electrostatic Discharge (ESD).

Electrostatic control precautions are required when installing, testing, servicing or repairing this assembly.

Component damage may result if ESD control procedures are not followed. If you are not familiar with

electrostatic control procedures, refer to applicable ESD protection handbooks and guidelines.

A drive, incorrectly applied or installed, can result in component damage or reduction in product lifetime.

Wiring or application errors such as under sizing the motor, supplying an incorrect or inadequate AC supply or

excessive ambient temperatures may result in system malfunction.

Remove and lock out power from the drive before you disconnect or reconnect wires or perform service. Wait

ten minutes after removing power to discharge the bus capacitors. Do not attempt to service the drive until the

bus capacitors have discharged to zero. Failure to do so may result in personal injury or death.

SECO−1KW−MCTRL−GEVB system is shipped with packing materials that need to be removed prior to

installation. Failure to remove all packing materials which are unnecessary for system installation may result in

overheating or abnormal operating condition.