Toshiba VF-S15 Instruction Manual page 150
Industrial inverter for 3-phase induction motors
Hide thumbs
Also See for VF-S15:
- Instruction manual (394 pages) ,
- Quick start manual (90 pages) ,
- Function manual (80 pages)
Table of Contents
Advertisement
Selection of wiring devices
Applicable
Input current (A)
Voltage
motor
class
(kW)
Without
DCL
0.4
3.6
0.75
6.3
1.5
11.1
2.2
14.9
3 phase
4.0
23.8
240V
5.5
35.6
class
7.5
46.1
11
63.1
15
82.1
18.5
89.1
0.2
3.4
0.4
5.9
1 phase
0.75
10.0
240V
1.5
17.8
class
2.2
24.0
3.0
24.0
0.4
2.1
0.75
3.6
1.5
6.4
3 phase
2.2
8.8
500V
4.0
13.7
class
5.5
20.7
Note 6)
7.5
26.6
11
36.6
15
47.7
18.5
52.7
The recommended molded case circuit breaker (MCCB) must be connected to primary side of each inverter to
protect the wiring system.
Note 1: Selections for use the Toshiba 4-pole standard motor with power supply voltage of 200V/ 400 - 50Hz.
Note 2: Be sure to attach a surge absorber to the exciting coil of the relay and the magnetic contactor.
Note 3: When using the auxiliary contacts 2a of the magnetic contactor MC for the control circuit, connect the
contacts 2a in parallel to increase reliability.
Note 4: When a motor is driven by commercial power supply using commercial power supply / inverter switching
circuit, use a magnetic contactor appropriated AC-3 class the motor rated current.
Note 5: Select an MCCB with a current breaking rating appropriate to the capacity of the power supply, because
short-circuit currents vary greatly depending on the capacity of the power supply and the condition of the
wiring system. The MCCB, MC and ELCB in this table were selected, on the assumption that a power
supply with a normal capacity would be used.
Note 6: For the operation and control circuits, regulate the voltage at 200V to 240V with a step-down transformer
for 500V class.
Note 7: In case of aul=2 setting, be sure to select the wiring device for 1 rating up motor.
Note 8: Regarding influence of leakage current, refer to section 1.4.3.
Molded case circuit breaker (MCCB)
Earth leakage circuit breaker (ELCB)
Rated current (A)
With DCL
Without DCL
1.8
5
3.4
10
6.5
15
9.2
20
15.9
30
21.5
50
28.9
60
41.5
100
55.7
125
70.0
125
2.0
5
4.0
10
7.6
15
14.6
30
20.1
30
23.6
30
0.9
5
1.8
5
3.4
10
4.8
15
8.3
20
11.2
30
15.1
40
21.7
50
29.0
60
36.3
75
J-3
Magnetic contactor (MC)
Note 2) Note 3)
Rated current (A)
With DCL
Without DCL
5
20
5
20
10
20
15
20
20
32
30
50
40
60
60
80
75
100
100
100
5
20
5
20
10
20
20
32
30
32
30
32
5
20
5
20
5
20
10
20
15
20
15
32
20
32
30
50
40
60
50
60
E6581611
With DCL
20
20
20
20
20
32
32
50
60
80
20
20
20
20
32
32
20
20
20
20
20
20
20
32
32
50
10
Hide quick links:
Advertisement
Table of Contents
