1. Electric Shock Prevention
While power is on or when the inverter is running, do not open the front cover.
You may get an electric shock.
Do not run the inverter with the front cover removed. Otherwise, you may access
the exposed high-voltage terminals or the charging part of the circuitry and get
an electric shock.
If power is off, do not remove the front cover except for wiring or periodic
inspection. You may access the charged inverter circuits and get an electric
Before starting wiring or inspection, switch power off, wait for more than 10
minutes, and check for residual voltage with a meter (refer to chapter 2 for
further details) etc.
Earth the inverter.
Any person who is involved in the wiring or inspection of this equipment should
be fully competent to do the work.
Always install the inverter before wiring. Otherwise, you may get an electric
shock or be injured.
Operate the switches and potentiometers with dry hands to prevent an electric
Do not subject the cables to scratches, excessive stress, heavy loads or
pinching. Otherwise, you may get an electric shock.
Do not change the cooling fan while power is on.
It is dangerous to change the cooling fan while power is on.
2. Fire Prevention
Mount the inverter and brake resistor on an incombustible surface. Installing the
inverter directly on or near a combustible surface could lead to a fire.
If the inverter has become faulty, switch off the inverter power. A continuous
flow of large current could cause a fire.
When a brake resistor is used, use an alarm signal to switch power off.
Otherwise, the brake resistor will overheat abnormally due a brake transistor or
other fault, resulting in a fire.
Do not connect a resistor directly to the DC terminals P(+), N(−). This could
cause a fire.
A - 2