Table Of Contents - Mitsubishi Electric 800 Series Manual

INVERTER
A800-GF
FR-A820-00046(0.4K)-04750(90K)-GF
FR-A840-00023(0.4K)-06830(280K)-GF
INSTRUCTION MANUAL (STARTUP) (ENGLISH)
1 INVERTER INSTALLATION AND PRECAUTIONS ...................................................... 5
2 WIRING........................................................................................................................... 6
3 FAILSAFE SYSTEM WHICH USES THE INVERTER ................................................. 16
4 PRECAUTIONS FOR USE OF THE INVERTER ......................................................... 16
5 BASIC OPERATION .................................................................................................... 18
6 TROUBLESHOOTING ................................................................................................. 27
7 SPECIFICATIONS........................................................................................................ 29
This Instruction Manual provides handling information and
precautions for use of the equipment.
Please forward this Instruction Manual to the end user.
Safety instructions
Do not attempt to install, operate, maintain or inspect the
product until you have read through this Instruction Manual
and supplementary documents carefully and can use the
equipment correctly. Do not use this product until you have a
full knowledge of the equipment, safety information and
instructions.
Installation, operation, maintenance and inspection must be
performed by qualified personnel. Here, qualified personnel
means personnel who meets all the following conditions.
• A person who took a proper engineering training. 
Such training may be available at your local Mitsubishi
Electric office. Contact your local sales office for schedules
and locations.
• A person who can access operating manuals for the
protective devices (e.g. light curtain) connected to the safety
control system. A person who has read and familiarized
themselves with the manuals.
In this Instruction Manual, the safety instruction levels are
classified into "WARNING" and "CAUTION"
Incorrect handling may cause hazardous
WARNING
conditions, resulting in death or severe
injury.
Incorrect handling may cause hazardous
CAUTION
conditions, resulting in medium or slight
injury, or may cause only material
damage.
Note that even the CAUTION
serious consequence depending on conditions. Be sure to
follow the instructions of both levels as they are critical to
personnel safety.
─CONTENTS─
 Electric shock prevention
 Do not remove the front cover or the wiring cover while the inverter power
 Even if power is OFF, do not remove the front cover except for wiring or
 Before wiring or inspection, check that the display of the operation panel
 This inverter must be earthed (grounded). Earthing (grounding) must
 Any person who is involved in wiring or inspection of this equipment shall
 This product body must be installed before wiring. Otherwise you may get
 Do not touch the setting dial or keys with wed hands. Doing so may cause
 Do not subject the cables to scratches, excessive stress, heavy loads or
 Do not change the cooling fan while power is ON as it is dangerous.
 Do not touch the printed circuit board or handle the cables with wet hands.
 Never touch the motor terminals, etc. right after powering OFF as the DC
 Before wiring or inspection for a PM motor, confirm that the PM motor is
level may lead to a
WARNING
is ON, and do not run the inverter with the front cover or the wiring cover
removed as the exposed high voltage terminals or the charging part of the
circuitry can be touched. Otherwise you may get an electric shock.
periodic inspection as the inside of the inverter is charged. Otherwise you
may get an electric shock.
is OFF. Any person who is involved in wiring or inspection shall wait for
10 minutes or longer after power OFF and check that there are no
residual voltage using a tester or the like. The capacitor is charged with
high voltage for some time after power OFF, and it is dangerous.
conform to the requirements of national and local safety regulations and
electrical code (NEC section 250, IEC 61140 class 1 and other applicable
standards). A neutral-point earthed (grounded) power supply for 400 V
class inverter to be compliant with EN standard.
be fully competent to do the work.
an electric shock or be injured.
an electric shock.
pinching. Doing so may cause an electric shock.
Otherwise you may get an electric shock.
voltage is applied to the motor for 1 second at powering OFF if the main
circuit capacitor capacity is measured. Doing so may cause an electric
shock.
stopped as a PM motor is a synchronous motor with high-performance
magnets embedded inside and high-voltage is generated at the motor
terminals while the motor is running even after the power of this product is
turned OFF. In an application, such as fan and blower, that the motor may
be driven by the load, connect a low-voltage manual contactor at this
product output side and keep it open during wiring and inspection of this
product. Otherwise you may get an electric shock.
1