Mitsubishi Electric FR-B-750, Instruction Manual

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INSTRUCTION MANUAL (STARTUP) (ENGLISH)
FR-B
FR-B-750 to 75K(200 V)
FR-B-750 to 110K(400 V)
FR-B3-(N)(H)400 to 37K
─ CONTENTS ─
1 INVERTER INSTALLATION AND PRECAUTIONS ...................................................... 5
2 WIRING........................................................................................................................... 7
3 FAILSAFE SYSTEM WHICH USES THE INVERTER ................................................. 13
4 PRECAUTIONS FOR USE OF THE INVERTER ......................................................... 14
5 BASIC OPERATION .................................................................................................... 15
6 TROUBLESHOOTING ................................................................................................. 20
7 SPECIFICATIONS........................................................................................................ 22
This Instruction Manual provides handling information and
precautions for use of the equipment.
Please forward this Instruction Manual to the end user.
 Electric Shock Prevention
PRESSURE-RESISTANT, EXPLOSION-PROOF MOTOR DRIVING INVERTER
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 conditions below.
• 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 himself/herself with the manuals.
In this Instruction Manual, the safety instruction levels are
classified into "WARNING" and "CAUTION"
Incorrect handling may cause
hazardous conditions, resulting in
death or severe injury.
Incorrect handling may cause
hazardous conditions, resulting in
medium or slight injury, or may cause
only material damage.
The level may even lead to a serious
consequence according to conditions. Both instruction
levels must be followed because these are important to
personal safety.
WARNING
CAUTION
CAUTION
WARNING
 Do not remove the front cover or the wiring cover while the power of this
product is ON. Do not run the inverter with the front cover or the wiring
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 accidentally touch the charged inverter
circuits and get an electric shock.
 Before wiring or inspection, LED indication of the operation panel must be
switched OFF. Any person who is involved in wiring or inspection shall
wait for at least 10 minutes after the power supply has been switched 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.
 This inverter must be earthed (grounded). Earthing (grounding) must
conform to the requirements of national and local safety regulations and
electrical code (NEC section 250, IEC 61140 class 1 and other applicable
standards).
 Any person who is involved in wiring or inspection of this equipment shall
be fully competent to do the work.
 This inverter must be installed before wiring. Otherwise you may get an
electric shock or be injured.
 Do not touch the setting dial or keys with wed hands. Doing so may cause
an electric shock.
 Do not subject the cables to scratches, excessive stress, heavy loads or
pinching. Doing so may cause an electric shock.
 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.
Otherwise you may get an electric shock.
 Never touch the motor terminals, etc. right after powering OFF as the DC
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.