Toshiba Tosvert VF-S15 Instruction Manual page 5

I
 When removing and installing the terminal cover with a screwdriver, be sure not to scratch
your hand as these results in injury.
 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 the unit is installed on a base that cannot withstand that weight, the unit can fall,
resulting in injury.
 If braking is necessary (to hold motor shaft), install a mechanical brake.
The brake on the inverter will not function as a mechanical hold, and if used for that
purpose, injury will result.
 Wiring
 Do not connect input power to the output (motor side) terminals (U/T1, V/T2, W/T3).
Connecting input power to the output could destroy the inverter or cause a fire.
 Do not insert a braking resistor between DC terminals (between PA/+ and PC/- or PO and
PC/-).
It could cause a fire.
 First shut off input power and wait at least 15 minutes before touching terminals and wires
Prohibited
on equipment (MCCB) that is connected to inverter power side.
Touching the terminals and wires before that time could result in electric shock.
 Do not shut down the external power supply on ahead when VIA terminal is used as logic
input terminal by external power supply.
It could cause unexpected result as VIA terminal is ON status.
 Electrical construction work must be done by a qualified expert.
Connection of input power by someone who does not have that expert knowledge can
result in fire or electric shock.
 Connect output terminals (motor side) correctly.
If the phase sequence is incorrect, the motor will operate in reverse and that can result in
injury.
 Wiring must be done after installation.
If wiring is done prior to installation, that can result in injury or electric shock.
 The following steps must be performed before wiring.
(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 800VDC or more), and check to
Mandatory
action If these steps are not properly performed, the wiring will cause electric shock.
 Tighten the screws on the terminal block to specified torque.
If the screws are not tightened to the specified torque, it can lead to fire.
 Check to make sure that the input power voltage is +10%, -15% of the rated power
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.
 Set a parameter f109 when VIA or VIB terminals are used as logic input terminal.
If it is not set, it could result in malfunction.
 Set a parameter f147 when S3 terminal is used as PTC input terminal.
If it is not set, it could result in malfunction.
Caution
Warning
make sure that the voltage to the DC main circuits (across PA/+ - PC/-) is 45V or less.
4
E6582175
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
2.1
2.1
2.1
2.1
2.1
1.4.4
2.2
2.2