JACT AT550 Series User manual

AT550 Series Inverter Manual
- 1 -
Preface
Thank you for choosing the AT550 series of AC Drives developed by JACT Electric
Co., Ltd. JACT designs and manufactures the AT550 Series of AC Drives for the
industrial automation applications and focus on product quality improvement by
launching the policy of continuous product development and gradual improvement.
The AT550 is a high-performance and multipurpose industrial product aiming to
integrate synchronous motor drive with asynchronous motor drive, and torque
control, speed control with position control. It is designed with advanced vector
control technology and the latest digital processor dedicated for motor control, thus
enhancing product reliability and adaptability to the environment.
The AT550 adopts customized and industrialized design to realize excellent control
performance through optimized functions and flexible applications.
AT550 uses high power density design. Some power ranges carry built-in DC reactor
and brake unit to save installation space. Through overall EMC design, it can satisfy
the low noise and low electromagnetic interference requirements to cope with
challenging grid, temperature, humidity and dust conditions, thus greatly improving
product reliability.
This operation manual presents installation wiring, parameter setup, fault diagnosis
and trouble shooting, and precautions related to daily maintenance. Read through
this manual carefully before installation to ensure the AC Drive is installed and
operated in a proper manner to give full play to its excellent performance and
powerful functions.
It is the responsibility of the user or machine builder or installation contractor or
electrical designer/engineer to take all necessary precautions to ensure that the
system complies with current standards, and to provide any devices (including safety
components), required to ensure the overall safety of the equipment and personnel.
If there is any doubt with regards to the software version or the manual contents,
please contact us.

Safety Instructions AT550 Series Inverter Manual
- 2 -
Safety Information and Precautions
Safety definition
DANGER
It is essential for avoiding a safety hazard. Serious physical injury or even death may occur if
related requirements are not followed.
WARNING
It is necessary for avoiding a risk of damage to the product or other machine.
WARNING
As high voltage still presents in the bus capacitor after power off, wait for at least five minutes
(or 15 min / 25 min, depending on the warning symbols on the machine) after power off to prevent
electric shock.
Electrical Safety
Extreme care must be taken at all times when working with the AC Drive or within the area of the AC
Drive. The voltages used in the AC Drive can cause severe electrical shock or burns and is potentially
lethal. Only professional and qualified personnel should be allowed to work on AC Drives.Read the
operation manual before operating on the equipment.
The guidelines and recommendations should be followed in order to gain long term trouble free operation
as the lifetime of the AC Drive is dependent on the working environment and correct handling of the
product in the initial installation stage.
Delivery and installation
Select appropriate tools for delivery and installation to ensure a safe and proper running of the
AC Drive and avoid physical injury or death. To ensure physical safety, the installation staff should take
mechanical protective measures, wearing exposure shoes and working uniforms;
R, S and T are the power input terminals, and U, V and W are output motor terminals. Connect
the input power cables and motor cables properly; otherwise, damage to the AC Drive may occur.
Connect the optional brake parts (brake resistors, brake units or feedback units) according to the wiring
diagram.Do not touch the AC Drive with wet items or body parts; otherwise, electric shock may occur.
When using an earth leakage circuit breaker, use a residual current operated protective device (RCD) of
type B (breaker which can detect both AC and DC). Leakage current can cause unprotected components to
operate incorrectly. If this is a problem, lower the carrier frequency, replace the components in question
with parts protected against harmonic current, or increase the sensitivity amperage of the leakage breaker
to at least 200 mA per drive.

AT550 Series Inverter Manual Safety Instructions
- 3 -
Adjusting AC Drive Parameters
Disconnect all power sources applied to the AC Drive before terminal wiring, and wait for at least the time
designated on the AC Drive after disconnecting the power sources.
High voltage presents inside the AC Drive during running. Do not carry out any operation on the AC Drive
during running except for keypad setup.
This manual provides a complete list of the parameters with functional description and care should always
be taken whenever parameters are adjusted during a live running startup. JACT can provide product
training and if in doubt seek advice.
Maintenance and component replacement
Only well-trained and qualified professionals are allowed to perform maintenance, inspection, and
component replacement on the AC Drive.
Take measures to prevent screws, cables and other conductive matters from falling into the AC Drive
during maintenance and component replacement.
Do not perform wiring, inspection or component replacement when power supply is applied. Ensure all the
input power supplies are disconnected before wiring and inspection, and wait for at least the time
designated on the AC Drive or until the DC bus voltage is less than 36V. The minimum waiting time is
listed in the table below.
AC Drive Model
Minimum waiting time
0.75kW-110kW
5min
132kW-315kW
15min
Above 355kW
25min

Contents AT550 Series Inverter Manual
- 4 -
Contents
Preface.............................................................................................................................................................- 1 -
Safety Information and Precautions................................................................................................................- 2 -
Contents.......................................................................................................................................................... - 4 -
Chapter 1 Product Information....................................................................................................................... - 5 -
1.1 Product Type Identification............................................................................................................ - 5 -
1.2 Product Nameplate......................................................................................................................... - 5 -
1.3 AT550 Inverter Series..................................................................................................................... - 6 -
1.4 Product Description........................................................................................................................ - 7 -
1.6 Product Appearance and Dimensions........................................................................................... - 10 -
1.7 Keyboard Appearance and Dimensions........................................................................................- 13 -
1.8 Appearance and Hole Size of the Keyboard Tray.........................................................................- 13 -
1.9 Appearance and Dimensions of the Double Display Keyboard and Tray.................................... - 14 -
Chapter 2 Mechanical Installation................................................................................................................ - 15 -
2.1 Installation Environment.............................................................................................................. - 15 -
2.2 Installation Space and Directions................................................................................................. - 15 -
2.3 Dismantling of the Cover Plate.................................................................................................... - 17 -
Chapter 3 Electrical Installation....................................................................................................................- 18 -
3.1 Electrical Installation....................................................................................................................- 18 -
3.2 Description of Peripheral Electrical Devices................................................................................- 19 -
3.3 Peripheral Electrical Components Selection Guidance................................................................ - 20 -
3.4 Selection of Braking Unit and Braking Resistor.......................................................................... - 20 -
3.5 Selection of Expansion Card........................................................................................................ - 22 -
3.6 Wiring Method..............................................................................................................................- 23 -
Chapter 4 Keyboard and Display.................................................................................................................. - 36 -
4.1 Operation and Display Interface...................................................................................................- 36 -
4.2 Keyboard Indicators Description..................................................................................................- 37 -
4.3 Keyboard Button Description.......................................................................................................- 37 -
4.4 Viewing and Modifying Function Codes......................................................................................- 37 -
4.5 Selecting Menu Mode...................................................................................................................- 38 -
Chapter 5 Basic Operation and Test Run...................................................................................................... - 39 -
5.1 Quick Adjustment Guidance.........................................................................................................- 39 -
5.2 Precautions Before Power-On...................................................................................................... - 40 -
5.3 Display Status After Power-On.................................................................................................... - 40 -
5.4 Motor Control Methods Selection................................................................................................ - 40 -
5.5 Initialization of Parameters...........................................................................................................- 42 -
5.6 Operation Commands Source Selection....................................................................................... - 42 -
5.7 Frequency Source Selection......................................................................................................... - 43 -
5.8 Stop Modes Selection................................................................................................................... - 45 -
5.9 Observation of Operation Status via DO and AO.........................................................................- 45 -
Chapter 6 Function Parameter List............................................................................................................... - 46 -
Chapter 7 Function Parameter List............................................................................................................... - 75 -
Chapter 8 Maintenance and Troubleshooting............................................................................................... - 97 -
8.1 Daily Maintenance and Inspection of AT550............................................................................. - 122 -
8.2 Warranty..................................................................................................................................... - 123 -
8.3 Faults and Solutions................................................................................................................... - 123 -
Appendix A: MODBUS Communication Protocol.....................................................................................- 129 -
1.1 Protocol Contents....................................................................................................................... - 129 -
1.2 Communication Frame Description............................................................................................- 129 -
1.3 Communication Data Address Definition...................................................................................- 132 -
1.4 Description of Group FD Communication Parameters.............................................................. - 134 -

AT550 Series Inverter Manual Chapter 2 Mechanical Installation
- 5 -
Chapter 1 Product Information
1.1 Product Type Identification
AT550 - T3 - 011G / 015 P B
AT550 series AC Drive
Mark
Voltage Class
T3
Three-phase 380V
S2
Single-phase 220V
G：General type
P：Special type
Mark
With Built-in Braking Unit
B
Yes
Blank
No
This is an example of the nameplate of standard AT550 products.
Figure 1.1 Product Model Name
1.2 Product Nameplate
MODEL: AT550-T3-011G/015PB
INPUT: 3PH AC 380V 26A 50Hz/60Hz
OUTPUT1: 3PH AC 0~380V 25A 0~300Hz
OUTPUT2: 3PH AC 0~380V 32A 0~300Hz
SN: 10174100209000002
Wuxi JACT Electric Co.,LTD
Model
Rated input
Rated output1
Rated output2
Series NO.
Manufacturer
Nameplate
Figure 1.2 Product type identification
Note:
Built-in brake unit is included in standard configuration of 380V 22kW and below models;Brake unit is not
included in standard configuration of 380V 30kW and 37kW models (optional built-in brake unit is available,
suffix "-B" indicates optional built-in brake unit).

Chapter 2 Mechanical Installation AT550 Series Inverter Manual
- 6 -
1.3 AT550 Inverter Series
Product Model
Input current (A)
Output current (A)
Motor (kW)
AT550-S2-0R4GB
5.4
2.3
0.4
AT550-S2-0R7GB
8.2
4
0.75
AT550-S2-1R5GB
14
7
1.5
AT550-S2-2R2GB
23
9.6
2.2
Product Model
Input current (A)
Output current (A)
Motor (kW)
AT550-T3-0R7G/1R5PB
3.4
2.1
0.75
AT550-T3-1R5G/2R2PB
5
3.8
1.5
AT550-T3-2R2G/4R0PB
5.8
5.1
2.2
AT550-T3-4R0G/5R5PB
10.5
9
3.7
AT550-T3-5R5G/7R5PB
14.6
13
5.5
AT550-T3-7R5G/011PB
20.5
17
7.5
AT550-T3-011G/015PB
26
25
11
AT550-T3-015G/018PB
35
32
15
AT550-T3-018G/022PB
38.5
37
18.5
AT550-T3-022G/030PB
46.5
45
22
AT550-T3-030G/037P
62
60
30
AT550-T3-037G/045P
76
75
37
AT550-T3-045G/055P
92
91
45
AT550-T3-055G/075P
113
112
55
AT550-T3-075G/090P
157
150
75
AT550-T3-090G/110P
180
176
90
AT550-T3-110G/132P
214
210
110
AT550-T3-132G/160P
256
253
132
AT550-T3-160G/185P
307
304
160
AT550-T3-200G/220P
385
377
200
AT550-T3-220G/250P
430
426
220
AT550-T3-250G/280P
468
465
250
AT550-T3-280G/315P
525
520
280
AT550-T3-315G/355P
590
585
315
AT550-T3-355G/400P
665
650
355
AT550-T3-400G/450P
785
725
400
AT550-T3-450G
883
820
450
AT550-T3-500G
910
900
500
AT550-T3-560G
1100
1020
560
AT550-T3-630G
1160
1120
630
AT550-T3-710G
1171
1260
710
Table 1.1 AT550 Models and Specs

AT550 Series Inverter Manual Chapter 2 Mechanical Installation
- 7 -
1.4 Product Description
Figure 1.3 Components of Plastic Case Model
Figure 1.4 Components of the Metallic Case Model
Operation Panel
Company Logo
Control Terminals
Main Circuit
Terminals
Lower Cover
Fan Plate
Fan
Case
Name Plate
Guide Rail Plate
Company Logo
Surface Cover
Fans
Operation Panel
Case
Control Terminals
Main Circuit
Terminals
Name Plate

Chapter 2 Mechanical Installation AT550 Series Inverter Manual
- 8 -
1.5 Technical Specifications
Table 1.2 Technical Specifications of AT550
Item
Specification
Standard
functions
Maximum frequency
320Hz
Carrier frequency
0.5kHz~16.0kHz
The carrier frequency is automatically adjusted based on the
temperature
Input frequency resolution
Digital setting:0.01Hz
Analog setting:maximum frequency×0.025%
Control mode
Voltage/Frequency(V/F) control
Switching vector control (SVC)
Forward vector control (FVC)
Startup torque
G type: 0.5Hz/150% (SVC); 0Hz/180% (FVC)
P type: 0.5Hz/100%
Speed range
1:100(SVC)
1:1000(FVC)
Speed stability accuracy
±0.5%(SVC)
±0.02%(FVC)
Torque control accuracy
±0.5% (FVC)
Overload capacity
G type: 60s for 150% of rated current and 3s for 180% of
rated current
P type: 60s for 120% of rated current and 3s for 150% of
rated current
Torque boost
Automatic torque boost
Manual torque boost 0.1%~30.0%
V/F curve
Straight-line V/F curve
Multi-point V/F curve
Square V/F curve
Ramp mode
Straight-line ramp
S-curve ramp
Four groups of acceleration/deceleration time with the range
of 0.0–6500.0s
DC braking
DC braking frequency: 0.00Hz to max.frequency
Braking time: 0.0–100.0s
Braking action current value: 0.0%~100.0%
JOG control
JOG frequency range: 0.00–50.00 Hz
JOG acceleration/deceleration time: 0.0–6500.0s
Simple PLC, multiply speed
running
The system implements up to 16 speeds by using simple PLC
function or by using digital input signals.
Onboard PID
It implements the closed-loop process control system easily.
Auto voltage regulation
(AVR)
The system maintains a constant output voltage
automatically when the grid voltage changes through the
permissible range.
Standard
functions
Overvoltage& Overcurrent
stall control
The current and voltage are limited automatically during the
running process so as to avoid frequent tripping due to
overvoltage and overcurrent.
Rapid current limit
It decreases the overcurrent faults to the minimum and
ensures normal running of the AC drive.

AT550 Series Inverter Manual Chapter 2 Mechanical Installation
- 9 -
Torque limit and control
It can limit the torque automatically and prevent frequent
overcurrent tripping operation.Torque control is applied in
vector control mode.
Individua
- lized
functions
High performance
high-performance current vector control technology.
Power dip ride-through
Load feedback energy compensates for any voltage
reduction, allowing the drive to continue to operate for a
short time during power dips.
Timing control
Time range: 0.0–6500.0 minutes
Field bus
Modbus-RTU protocol (485)
Running
Running command source
• Operation panel control
• Terminal control
• Communication control
Allows different methods of switching between command
sources:
Frequency setting channel
Supports up to 13 frequency reference setting channels and
allows different methods of switching between frequency
reference setting channels:
Digital setting
Analog voltage reference
Analog current reference
Pulse reference
Communication reference
Auxiliary frequency setting
channel
Supports up to 10 auxiliary frequency sources, and
allows fine tuning of the auxiliary frequency and main &
auxiliary calculation.
Input terminals
5 digital input (DI) terminals, X5 supports up to 100 kHz
high-speed pulse input;
2 analog input (AI) terminals, AI1 only supports 0–10 V
voltage input and AI2 supports 0–10 V voltage input or
4–20 mA current input.
Output terminals
1 high-speed pulse output terminal (open-collector) that
supports 0–100 kHz square wave signal output
1 digital output (DO) terminal
2 relay output terminals(One is factory default, the other is
optional)
2 analog output (AO) terminals that supports 0–20 mA
current output or 0–10 V voltage output.
Display &
operate
panel
LED display
Display parameters (three display modes: Basic mode,
Quick menu mode, Non-factory value mode).
Protection function
Phase loss protection; Instantaneous overcurrent
protection; overheat protection;Short-circuit protection;
overvoltage protection; undervoltage protection; overload
protection; overcurrent protection;
Optional parts
Braking unit, I/O and AI extension card, field bus
communication card, differential input PG card, OC input
PG card, sin/cos PG card.

Chapter 2 Mechanical Installation AT550 Series Inverter Manual
- 10 -
Environ-
ment
Installation location
Indoor, free from direct sunlight, dust, corrosive gas,
combustible gas, oil smoke, vapour, drip or salt.
Altitude
Lower than 1000 m (de-rated if higher than 1000 m)
Ambient temperature
-10°C to +40°C (de-rated if the ambient temperature is
between 40°C and 50°C).
Humidity
Less than 95%RH, without condensing
Vibration
Less than 5.9 m/s2 (0.6 g)
Storage temperature
－20℃~＋60℃
1.6 Product Appearance and Dimensions
W1
W
H
H1
D1
D
Figure 1.5 Plastic Case Mounting Dimensions
W1
W
H1 H
D1
D
Figure 1.6 Metallic Case Mounting Dimensions