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Safety Instructions; Fire Prevention - Mitsubishi Electric FR-F500 Series Instruction Manual

Transistorized inverter.
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SAFETY INSTRUCTIONS

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.
!
Even 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 shock.
!
Before starting wiring or inspection, switch power off, wait for more than at least 10 minutes and check
for the presence of any residual voltage with a meter (check chapter 2 for further details.) etc.
!
This inverter must be earthed (grounded). Earthing (grounding) must conform to the requirements of
national and local safety regulations and electrical code. (JIS, NEC section 250, IEC 536 class 1 and
other applicable standards)
!
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.
!
Perform setting dial and key operations with dry hands to prevent an electric shock.
!
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. To do so will invite a hazardous condition.

2. Fire Prevention

!
Mount the inverter 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 using a brake resistor, make up a sequence that will turn off power when an alarm signal is
output. Otherwise, the brake resistor may excessively overheat due to damage of the brake transistor
and such, causing a fire.
!
Do not connect a resistor directly to the DC terminals P (+), N (-). This could cause a fire.
3. Injury Prevention
!
Apply only the voltage specified in the instruction manual to each terminal to prevent damage etc.
!
Ensure that the cables are connected to the correct terminals. Otherwise, damage etc. may occur.
!
Always make sure that polarity is correct to prevent damage etc.
!
While power is on and for some time after power-off, do not touch the inverter as it is hot and you
may get burnt.
WARNING
CAUTION
CAUTION
A - 2

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