Toshiba Tosvert VF-S15 User Manual

E6582175
F-70
6
1) Connecting an external braking resistor (optional)
Separate-optional resistor (with thermal fuse)
Note 1: A TC (Trip coil) is connected as shown in this figure when an MCCB with a trip coil is used instead of
an MC. A step-down transformer is needed for every 500V-class inverter, but not for any 240V-class
inverter.
Note 2: As a last resort to prevent fire, be sure to connect a thermal relay (THR). Although the inverter has a
means of preventing overload and overcurrent to protect the braking resistor, the thermal relay is
activated in case the protection function fails to work. Select and connect a thermal relay (THR)
appropriately to the capacity (wattage) of the braking resistor.
Connecting thermal relays and an external braking resistor
IM
Motor
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
Main circuits
Power supply
PA/+ PB
MCCB
Braking resistor (optional)
PBR
Inverter
Fuse
TC
FLB
F
FLC
FLA
R
CC
MC
Power supply
TH-R
S
urge
suppressor
Forward
Reverse
IM
Mot or
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
Main circuits
Power supply
PA/+ PB
MCCB
Braking resistor (optional)
PBR
Inverter
Ste p- down
transformer
2:1
MC

Toshiba Tosvert VF-S15 Specifications

General

Category	Inverter
Control Method	V/f control, Sensorless vector control
Cooling Method	Forced air cooling
Model	Tosvert VF-S15
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Communication Options	Modbus RTU
Overload Capacity	150% for 1 minute
Braking Unit	Built-in braking transistor
Output Voltage	3-Phase, same as input voltage
Operating Temperature	-10 to +50°C (14 to 122°F)
Storage Temperature	-20 to 65°C (-4 to 149°F)
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m above sea level
Input Voltage	3-Phase 200 to 240 VAC, 3-Phase 380 to 480 VAC
Weight	Varies depending on model (e.g., 0.8 kg to 16 kg)