Toshiba TOSVERT VF-nC3 Instruction Manual page 5

I
 When removing and installing the terminal cover with a screwdriver, be sure not to scratch
 Pressing too hard on the screwdriver can scratch the inverter.
 Always turn the power off when removing the wiring cover.
 After wiring is complete, be sure to replace the terminal cover.
Mandatory  The main unit must be installed on a base that can bear the unit's weight.
action
 If braking is necessary (to hold motor shaft), install a mechanical brake.
 Wiring
 Do not connect input power to the output (motor side) terminals (U/T1, V/T2, W/T3).
 Do not insert a braking resistor between DC terminals (between PA/+ and PC/- or PO and
 First shut off input power and wait at least 15 minutes before touching terminals and wires
Prohibited
 Do not shut down the external power supply on ahead when VIA terminal is used as logic
 When supplying power from a wall socket, do not exceed the rated capacity of the socket.
 Electrical construction work must be done by a qualified expert.
 Connect output terminals (motor side) correctly.
 Wiring must be done after installation.
 The following steps must be performed before wiring.
Mandatory
action
 Tighten the screws on the terminal block to specified torque.
 Check to make sure that the input power voltage is +10%, -15% of the rated power
 Set a parameter f109 when VI terminals are used as logic input terminal.
your hand as these results in injury.
If the unit is installed on a base that cannot withstand that weight, the unit can fall,
resulting in injury.
The brake on the inverter will not function as a mechanical hold, and if used for that
purpose, injury will result.
Connecting input power to the output could destroy the inverter or cause a fire.
PC/-).
It could cause a fire.
on equipment (MCCB) that is connected to inverter power side.
Touching the terminals and wires before that time could result in electric shock.
input terminal by external power supply (f127=200).
It could cause unexpected result as VIA terminal is ON status.
Otherwise, this may generate excessive heat which can start a fire.
Connection of input power by someone who does not have that expert knowledge can
result in fire or electric shock.
If the phase sequence is incorrect, the motor will operate in reverse and that can result in
injury.
If wiring is done prior to installation, that can result in injury or electric shock.
(1) Turn off all input power.
(2) Wait at least 15 minutes and check to make sure that the charge lamp is no longer lit.
(3) Use a tester that can measure DC voltage (400VDC or more), and check to make sure
that the voltage to the DC main circuits (across PA/+ - PC/-) is 45V or less.
If these steps are not properly performed, the wiring will cause electric shock.
If the screws are not tightened to the specified torque, it can lead to fire.
voltage (±10% when the load is 100% in continuous operation) written on the name plate.
If the input power voltage is not +10%, -15% of the rated power voltage (±10% when the
load is 100% in continuous operation), this can result in fire.
If it is not set, it could result in malfunction.
Caution
Warning
4
E6581595
Reference
section
1.3.2
1.3.2
1.3.2
1.3.2
1.4.4
1.4.4
Reference
section
2.2
2.2
2.2
2.2
6.3.1
10.
2.1
2.1
2.1
2.1
2.1
1.4.4
2.2