A6-3.7K-A

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A6 series inverter

1. A6 series is a high performance vector/torque control inverter, G type is constant torque/heavy load, overload capacity is 150% 1 minute, L type is variable torque/light load, overload capacity is 115% 1 minute.

2. The standard built-in brake unit is less than 15K, 18.5-45 kW/55–7kW. If additional built-in brake units are required, please specify when ordering.

Characteristic performance:

Revolving speed
tracking start

The frequency converter recognizes the speed of the rotating motor and directly tracks the start from the identified frequency.
The current and voltage in the starting process are smooth and no-impact

Low frequency high
torque

Closed loop vector control 0.00Hz 180%; Open loop vector control 2:0.25Hz 180% ; Open loop vector control 1: 0.50Hz 180%

Key functions

Torque/speed control mode switching, multi-function input/output terminals, undervoltage regulation, three-way switching,
revolving speed tracking,torque limit, multi-speed operation (up to 23 sections), auto-tuning, S-curve acceleration/deceleration
slip compensation, PID adjustment, droop control, current limit control, manual/automatic torque boost, current limit

Frequency range

0 . 00～300 . 00 H z Note: Open loop vector control 1 mode 0 . 0 ~ 3000 . 0 H z can be customized according to customer needs

Starting frequency

0. 00～60. 00Hz

Acceleration and
deceleration time

0. 1 ~ 36000s. (A4 above supports 0.01s)

Energy consumption
braking capacity

Braking unit operating voltage: 650 to 750V

DC braking capability

DC braking starting frequency: 0. 00 ~ 300. 00Hz. DC braking current: constant torque 0. 0 ~ 120. 0%; variable torque 0. 0 ~ 90.
0% DC braking time: 0. 0～30. 0s: No need of DC brake start waiting time for quick braking

Flux brake function

Continuing operating, no operating is optional during deceleration, factory default does not operate during deceleration

Copy of parameters

The standard operation panel can realize parameter uploading and downloading with a copy progress indication; the uploaded
parameters can be selected to be prohibited from being uploaded and overwritten.

Common DC bus

Full series can realize multiple frequency converters sharing DC bus power supply

Independent duct

The whole series adopts independent air duct design to support the ambient installation mode of radiator

Universal expansion
interface

Support customers for secondary development of universal expansion board with CPU: Physical interface SPI bus, software protocol
Mod bus

Expansion card

PG feedback card, constant pressure water supply module, Modbus, Profibus, Can communication adapter

Power on self-
inspection

Achieve power-on self-inspection of internal and external circuits, such as motor grounding, +10 V power output abnormality,
analog input abnormality, and disconnection.

Special protection

Undervoltage, overcurrent protection, overvoltage protection, interference protection, auto-tuning fault, module protection,
radiator overheat protection, frequency converter overload protection, motor overload protection, peripheral protection,
abnormal current detection, abnormal output short circuit current to earth, abnormal power off during operation, input power
supply abnormality, output phase loss abnormality, EEPROM abnormality, relay pull-in abnormality, temperature sampling
disconnection, encoder disconnection, +10 V power output abnormality, analog input abnormality, motor overheat (PTC),
communication abnormality, version compatibility abnormalit y, copy abnormality, expansion card connection abnormality, terminal
mutex check failed, hardware overload protection

A6Series frequency converter adaptor motor list

Power (kW)

0.75

1.5

2.2

3.7

5.5

7.5

18.5

Motor power (kW)

0.75

1.5

2.2

3.7

5.5

7.5

18.5

Output	Voltage (V)	3 Phase 0- Rated AC input voltage				3 Phase 0- Rated AC input voltage					3 Phase 0- Rated AC input voltage
	Rated current(A)	2.5	3.8	5.5	9	13	17	24	30	39	45	60	75	91	112
	Overload capacity	150% 1 minute, 180% 10 seconds, 200% 0.5 seconds, interval 10 minutes (inverse time limit characteristi c)

Input	Rated voltage/frequency	Three-phase 380V-480V; 50Hz/60Hz				Three-phase 380V-480V; 50Hz/60Hz				Three-phase 380V-480V; 50Hz/60Hz
	Allowable range	323V -528V, voltage unbalance degree: ≤ 3%, allowable frequency fluctuation: ±5%
	Rated current(A)	3.5	6.2	9.2	14.9	21.5	27.9	39	50.3	60	69.3	86	104	124	150

Braking unit

Standard built-in

Built-in optional

Protection class

IP20

Cooling method

Self-cooling

Forced air cooling