Build-In Braking Unit Max Braking Performance; Standby Control System; Standby Control System Of Power Supply Directly Driving Mode - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual
22 kW 32Ω
30 kW 24Ω
37 kW 20Ω
45 kW 16Ω
55 kW 13Ω
75 kW 9Ω
90 kW 6.8Ω
110 kW 6.2Ω
132 kW 4.7Ω
160 kW 3.9Ω
185 kW 3.3Ω
200 kW 3Ω
220 kW 2.7Ω
250 kW 2.4Ω
280 kW 2Ω
315 kW 1.8Ω
355 kW 1.5Ω
400 kW 1.2Ω
450 kW 1.2Ω
500 kW 1Ω
560 kW 1Ω
Single-phase 220V
Motor power(kW) Resistance value(Ω)
0.4 kW 400Ω
0.75 kW 200Ω
1.5 kW 100Ω
2.2 kW 75Ω
● Build-in braking unit max braking performance
Braking unit of AC300 series product with low power can be selected according to the suggested braking
resistance specification parameters in table 3-11. In large inertia or long time frequent brake occasion, the
moment maybe should be increased. The max braking power is showed in the following table, the range of
which can not be over in use. Otherwise the equipment maybe destroyed. If any problem, please consult Veichi
Electric Com., Ltd customer service department.
Table 3-10:AC300 series inverter build-in braking unit max braking power
Three-phase380V
Inverter model Motor power
AC300-T3-R75G 0.75 kW
AC300-T3-1R5G 1.5 kW
AC300-T3-2R2G 2.2 kW
AC300-T3-004G 4 kW
Installation and Wiring
2,000W 100%
3,000W 100%
3,700W 100%
4,500W 100%
5,500W 100%
7,500W 100%
9,300W 100%
11,000W 100%
13,000W 100%
15,000W 100%
17,000W 100%
18,500W 100%
20,000W 100%
22,500W 100%
25,500W 100%
30,000W 100%
33,000W 100%
42,000W 100%
42,000W 100%
42,000W 100%
50,000W 100%
Braking moment
Resistance power(W)
(%)
100W 100%
120W 100%
300W 100%
300W 100%
Max braking current Min resistance
3.5A 200Ω
3.5A 200Ω
7A 100Ω
10A 75Ω
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AC300 Series Vector Control Inverter Manual
AC300-T3-5R5G 5.5 KW
AC300-T3-7R5G 7.5 kW
AC300-T3-011G 11 kW
AC300-T3-015G 15 kW
AC300-T3-018G 18.5 kW
AC300-T3-022G 22 kW
Three / Single-phase 220V
Inverter model Motor power
AC300-T/S2-R40G 0.4 kW
AC300-T/S2-R75G 0.75 kW
AC300-T/S2-1R5G 1.5 kW
AC300-T/S2-2R2G 2.2 kW

Standby control system

Frequency inverter is composed of semiconductor, passive electronic component and driving part. All of them have
useful time, which means these parts may happen characteristic change or out of use in normal working environment.
And it will cause product fault. To avoid production stop led by the fault, we suggest preparing standby control system
when using the inverter.
Chart 3-11 is a standby control system for manual switch to power supply driving motor at inverter fault. Standby
control systems such as power supply Y/Δ step-down start way driving motor, power supply self-coupling reduction
voltage start mode driving motor, power supply soft start mode driving motor or standby inverter system can be chose to
use according the actual requirement and environment.
Chart 3-11: Standby control system of power supply directly driving mode
Installation and Wiring
10A 75Ω
14A 50Ω
17A 40Ω
23A 30Ω
28A 25Ω
28A 25Ω
Max braking current Min resistance
3.8A 100Ω
3.8A 100Ω
6.5A 60Ω
10.5A 40Ω
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