Hitachi SJ Series User Manual page 7

Chapter 1 Chapter 1
1. 1.4.4 Precautions for Running and Test Running Precautions for Running and Test Running Precautions for Running and Test Running Precautions for Running and Test Running Precautions for Running and Test Running
Otherwise, you run the risk of electric Otherwise, you run the risk of electric Otherwise, you run the risk of electric Otherwise, you run the risk of electric
shock or fire. shock or fire.
Electric
While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not
shock
touch any internal part or the terminal of the touch any internal part or the terminal of the touch any internal part or the terminal of the touch any internal part or the terminal of the
Fire
inverter. Also do not check signals, or connect inverter. Also do not check signals, or inverter. Also do not check signals, or
or disconnect any wire or connector. or disconnect any wire or connector. or disconnect any wire or connector.
While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not
touch any internal part of the inverter. Also do touch any internal part of the inverter. Also do touch any internal part of the inverter. Also do touch any internal part of the inverter. Also do
Prohibited Prohibited
not insert a bar in it. not insert a bar in it.
Otherwise, you run the risk of electric Otherwise, you run the risk of Otherwise, you run the risk of
shock.
Electric
Be sure to close the terminal block cover before Be sure to close the terminal block cover before Be sure to close the terminal block cover before Be sure to close the terminal block cover before
shock
turning on the inverter power. Do not open the turning on the inverter power. Do not open the turning on the inverter power. Do not open the turning on the inverter power. Do not open the
terminal block cover while power is being terminal block cover while power is being terminal block cover while power is being
supplied to the inverter or voltage remains supplied to the inverter or voltage remains supplied to the inverter or voltage remains supplied to the inverter or voltage remains
inside. Do not touch the internal PCB, terminal inside. Do not touch the internal PCB, terminal inside. Do not touch the internal PCB, terminal inside. Do not touch the internal PCB, terminal
Prohibited Prohibited
block or connector while power is being connector while power is being connector while power is being
supplied to the inverter or voltage remains supplied to the inverter or voltage remains supplied to the inverter or voltage remains supplied to the inverter or voltage remains
inside.
Do not operate switches in the inverter or on Do not operate switches in the inverter or on Do not operate switches in the inverter or on Do not operate switches in the inverter or on
the board with wet hands. the board with wet hands.
Otherwise, you run the risk of injury or Otherwise, you run the risk of injury or Otherwise, you run the risk of injury or Otherwise, you run the risk of injury or
fire.
Injury
While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not While power is supplied to the inverter, do not
Fire
touch the terminal of the inverter, even if it has touch the terminal of the inverter, even if it has touch the terminal of the inverter, even if it has touch the terminal of the inverter, even if it has
stopped.
Prohibited Prohibited
Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and
damage to the machine. damage to the machine.
Injury
Damage
Do not select the retry mode for controlling an Do not select the retry mode Do not select the retry mode
elevating or traveling device because elevating or traveling device because elevating or traveling device because
free-running status occurs in retry mode. running status occurs in retry mode. running status occurs in retry mode.
If you use the EzSQ program, before operating If you use the EzSQ program, before operating If you use the EzSQ program, before operating If you use the EzSQ program, before operating
the inverter, verify that secure operation of the the inverter, verify that secure operation of the the inverter, verify that secure operation of the the inverter, verify that secure operation of the
Prohibited Prohibited
program is ensured. program is ensured.
Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and Otherwise, you run the risk of injury and
damage to the machine. damage to the machine.
Injury
The inverter allows you to easily control the The inverter allows you to easily control the The inverter allows you to easily control the The inverter allows you to easily control the
Damage
speed of the motor or machine operations. speed of the motor or machine operations. speed of the motor or machine operations. speed of the motor or machine operations.
Before operating the inverter, confirm the Before operating the inverter, confirm the Before operating the inverter, confirm the
capacity and ratings of the motor or machine capacity and ratings of the motor or machine capacity and ratings of the motor or machine capacity and ratings of the motor or machine
controlled by the inverter. controlled by the inverter.
Do
When using the inverter to operate a motor at a When using the inverter to operate a motor at a When using the inverter to operate a motor at a When using the inverter to operate a motor at a
high frequency, check the allowable motor high frequency, check the allowable motor high frequency, check the allowable motor
speeds with the manufacturers of the motor and speeds with the manufacturers of the motor and speeds with the manufacturers of the motor and speeds with the manufacturers of the motor and
the machine to be driven and obtain their the machine to be driven and obtain their the machine to be driven and obtain their
consent before starting inverter operation. ent before starting inverter operation. ent before starting inverter operation.
During inverter operation, check the motor for During inverter operation, check the motor for During inverter operation, check the motor for During inverter operation, check the motor for
the direction of rotation, abnormal sound, and the direction of rotation, abnormal sound, and the direction of rotation, abnormal sound, and the direction of rotation, abnormal sound, and
vibrations.
DANGER DANGER DANGER
Injury Injury
connect
Prohibited Prohibited
electric
Do Do
for controlling an
Warning Warning Warning
Burn Burn
injury injury
Prohibited Prohibited
Injury Injury
Do Do
1-6
Safety Instructions/Risks Safety Instructions/Risks Safety Instructions/Risks Safety Instructions/Risks
Otherwise, you run the risk of injury. Otherwise, you run the risk of injury. Otherwise, you run the risk of injury. Otherwise, you run the risk of injury.
If the retry mode has been selected, the inverter If the retry mode has been selected, the inverter If the retry mode has been selected, the inverter If the retry mode has been selected, the inverter If the retry mode has been selected, the inverter
will restart suddenly after a break upon will restart suddenly after a break upon will restart suddenly after a break upon will restart suddenly after a break upon
detection of an error. Stay away from the detection of an error. Stay away from the detection of an error. Stay away from the detection of an error. Stay away from the
machine controlled by the inverter when the machine controlled by the inverter when the machine controlled by the inverter when the machine controlled by the inverter when the
inverter is under such inverter is under such circumstances. (Design inverter is under such circumstances. (Design circumstances. (Design
the machine so that human safety can be the machine so that human safety can be the machine so that human safety can be the machine so that human safety can be
ensured, even when the inverter restarts ensured, even when the inverter restarts ensured, even when the inverter restarts ensured, even when the inverter restarts
suddenly.) suddenly.)
- The [STOP] key on the operator keypad VOP The [STOP] key on the operator keypad VOP The [STOP] key on the operator keypad VOP The [STOP] key on the operator keypad VOP The [STOP] key on the operator keypad VOP
can be enabled/disabled using the [AA can be enabled/disabled using the [AA-13] can be enabled/disabled using the [AA can be enabled/disabled using the [AA
STOP key and is STOP key and is effective only when the normal STOP key and is effective only when the normal effective only when the normal
communication is established with the main communication is established with the main communication is established with the main communication is established with the main
unit. Prepare an emergency stop switch unit. Prepare an emergency stop switch unit. Prepare an emergency stop switch unit. Prepare an emergency stop switch
separately. separately.
If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the
inverter before a short inverter before a short-term power failure, the inverter before a short term power failure, the term power failure, the
inverter may restart operation after inverter may restart operation after inverter may restart operation after the power inverter may restart operation after
recovery. If such a restart may put persons in recovery. If such a restart may put persons in recovery. If such a restart may put persons in recovery. If such a restart may put persons in
danger, design a system configuration that danger, design a system configuration that danger, design a system configuration that danger, design a system configuration that
disables the inverter from restarting after power disables the inverter from restarting after power disables the inverter from restarting after power disables the inverter from restarting after power disables the inverter from restarting after power
recovery. recovery.
If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the If an operation command has been input to the
inverter before the inverter enters alarm status, inverter before the inverter enters alarm status, inverter before the inverter enters alarm status, inverter before the inverter enters alarm status, inverter before the inverter enters alarm status,
the inverter will restart suddenly when the alarm the inverter will restart suddenly when the alarm the inverter will restart suddenly when the alarm the inverter will restart suddenly when the alarm the inverter will restart suddenly when the alarm
status is reset (by terminal, key operation or status is reset (by terminal, key operation or status is reset (by terminal, key operation or status is reset (by terminal, key operation or
communication). Before resetting the alarm communication). Before resetting the alarm communication). Before resetting the alarm communication). Before resetting the alarm
status, make sure that no operation command status, make sure that no operation command status, make sure that no operation command status, make sure that no operation command status, make sure that no operation command
has been input. has been input.
When an unexpected event occurs, do not When an unexpected event occurs, do not When an unexpected event occurs, do not When an unexpected event occurs, do not
touch the inverter or cable. touch the invert er or cable.
Make sure to understand and check the Make sure to understand and check the Make sure to understand and check the Make sure to understand and check the
functions the inverter provides to confirm safety. functions the inverter provides to confirm safety. functions the inverter provides to confirm safety. functions the inverter provides to confirm safety. functions the inverter provides to confirm safety.
Be careful that operation commands or Be careful that operation commands or Be careful that operation commands or Be careful that operation commands or
resetting operation do not cause an unexpected resetting operation do not cause an unexpected resetting operation do not cause an unexpected resetting operation do not cause an unexpected resetting operation do not cause an unexpected
restart. restart.
When an error (alarm) occurs, before moving to When an error (alarm) occurs, before moving to When an error (alarm) occurs, before moving to When an error (alarm) occurs, before moving to When an error (alarm) occurs, before moving to
the next operation (resetting the alarm status or the next oper ation (resetting the alarm status or ation (resetting the alarm status or ation (resetting the alarm status or
reapplying the power), make sure that no reapplying the power), make sure that no reapplying the power), make sure that no reapplying the power), make sure that no
operation command has been input. If the operation command has been input. If the operation command has been input. If the operation command has been input. If the
inverter has received an operation command, it inverter has received an operation command, it inverter has received an operation command, it inverter has received an operation command, it inverter has received an operation command, it
restarts automatically. restarts automatically. restarts automatically.
Otherwise, you run the risk of burn injury. Otherwise, you run the risk of burn injury. Otherwise, you run the risk of burn injury. Otherwise, you run the risk of burn injury. Otherwise, you run the risk of burn injury.
Do not touch the heat sink, which heats up Do not touch the heat sink, which heats up touch the heat sink, which heats up
during the inverter operation. during the inverter operation. during the inverter operation.
Otherwise, you run the risk of injury. Otherwise, you run the risk of injury. Otherwise, you run the risk of injury. Otherwise, you run the risk of injury.
Install an external brake system if needed. Install an external brake system if needed. Install an external brake system if needed. Install an external brake system if needed.
the power