INVT Goodrive300-21 Series User manual

Goodrive300-21 series Dual-inverter
Integrated Machine for Air Compressor

Goodrive300-21 integrated machine for air compressor Preface
i
Preface
Goodrive300-21 series dual inverter integrated machine for air compressor (hereafter referred to as
Goodrive300-21 air compressor integrated machine) is especially developed for synchronous /
asynchronous twin screw air compressor. It can be used in combination with VT6070E series touch
screen to drive and control the twin screw air compressor.
Goodrive300-21 air compressor integrated machine is capable of providing dual inverter output of
master and fan for the air compressor as well as offering +24V power to the touch screen. It supports
control of solenoid valve and receiving of temperature and pressure signal. In respect of function, it is
a perfect replacement for the original dual inverter electrical control cabinet of air compressor but with
a much smaller size and simpler installation and debugging procedures.
Given the application scenarios and actual demands of air compressor, Goodrive300-21 air
compressor integrated machine can realize fast start-up and stable operation of air compressor
through dual PID and unique weak magnetic design. It adopts independent air duct, heavy load and
high power factor design to effectively cope with challenging grid conditions and application
environment. In addition, it can realize IOT function and accurate power detection by installing
optional parts and accessories.
Read through this manual carefully before installation to ensure correct installation and operation of
Goodrive300-21 air compressor integrated machine, thus giving full play to its excellent functions and
performance.
If the product is ultimately used for military affairs or manufacture of weapon, it will be listed on the
export control formulated by Foreign Trade Law of the People's Republic of China. Rigorous review
and necessary export formalities are needed when exported.
Our company reserves the right to update the information of our products.

Goodrive300-21 integrated machine for air compressor Contents
ii
Contents
Preface............................................................................................................................................i
Content...........................................................................................................................................ii
1. Product overview.......................................................................................................................1
1.1. Product specification..........................................................................................................1
1.2. Product nameplate.............................................................................................................2
1.3. Type designation................................................................................................................2
1.4. Rated value........................................................................................................................3
2. Installation guidance .................................................................................................................4
2.1. Wiring and terminal instruction of main circuit.....................................................................4
2.2. Control circuit connection and terminal instruction..............................................................5
3. Instruction for panel display ...................................................................................................10
4. Debugging guidance................................................................................................................11
4.1. Wiring diagram of integrated machine system ..................................................................11
4.2. Recommended layout process......................................................................................... 11
4.3. Function debugging procedures.......................................................................................14
5. Function instruction ................................................................................................................22
5.1. Function code instruction .................................................................................................22
5.3. Instruction of air compressor control logic.........................................................................57
6. Fault information and solution................................................................................................60
6.1. Faults and countermeasures for integrated machine.........................................................60
6.2. Fault and countermeasures for air compressor device......................................................65
Appendix A. Product dimension .................................................................................................68
A.1. Wall installation dimension...............................................................................................68
A.2. Floor installation dimension (with top cover).....................................................................69
A.3. Floor installation dimension (without top cover)................................................................70
A.4. Product weight and packaging dimension ........................................................................70
Appendix B. Optional parts and accessories.............................................................................72
B.1. Power consumption component.......................................................................................72
B.2. Contactor component.......................................................................................................76
B.3. Power detection component and contactor component.....................................................78
B.4. Remote data collection terminal component.....................................................................79
B.5. Drip-proof top cover.........................................................................................................81
B.6. Floor installation pedestal ................................................................................................83
B.7. Touch screen...................................................................................................................86
Appendix C. Communication protocol........................................................................................88
C.1. Application mode of the inverter.......................................................................................88
C.2. RTU command code and communication data illustration ................................................88
Appendix D. Common EMC problems and countermeasures...................................................95
D.1. Interference problems of meter switch and sensors..........................................................95
D.2. 485 communication interference......................................................................................95
D.3. Unstoppable or shimmering indicator caused by coupling of motor cable .........................96
D.4. Leakage current and residual current device (RCD).........................................................97
D.5. Problem of charged device shell......................................................................................98

Goodrive300-21 integrated machine for air compressor Product overview
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1. Product overview
Goodrive300-21 air compressor integrated machine is capable of providing dual inverter output of
master and fan to the air compressor and offering +24V power to the touch screen. It supports control
of solenoid valve and receiving of temperature and pressure signal. In respect of function, it is a
perfect replacement for the original dual inverter electrical control cabinet of air compressor but with a
much smaller size and simpler installation and commissioning procedures.
1.1. Product specification
Category
Function
Specification
Power input
Input voltage of inverter (V)
3PH 220V(-15%)–240V(+10%)
3PH 380V(-15%)–440V(+10%)
Rated input current (A)
Please refer to “1.4 Rated value”
Rated input frequency(Hz)
50Hz or 60Hz; allowed range: 47–63Hz
Efficiency
＞97%
Power factor
0.9
Power output of
main inverter
Output voltage (V)
Equal to input voltage and the error is less than 5%
Rated output current (A)
Please refer to “1.4 Rated value”
Rated output power (kW)
Please refer to “1.4 Rated value”
Output frequency (Hz)
0–400Hz
Power output of
fan inverter
Output voltage (V)
Equal to input voltage and the error is less than 5%
Rated output current (A)
Please refer to “1.4 Rated value”
Rated output power (kW)
Please refer to “1.4 Rated value”
Output frequency (Hz)
0–50Hz
Other power
output
+24VDC power
24W
220VAC/110VAC
30W
Running control
performance
Control mode
Open loop vector, space voltage vector
Speed ratio
Asynchronous motor: 1:200 (SVC), synchronous
motor: 1:20 (SVC)
Speed control precision
±0.2% (SVC)
Speed fluctuation
±0.3% (SVC)
Torque response
<20ms (SVC)
Starting torque
Asynchronous motor : 0.25Hz 150% (SVC)
Synchronous motor: 2.5Hz 150% (SVC)
Overload capacity
Master inverter: 150%/1m
Fan inverter: 120%/1m
Specialized function
Sleep and wake-up function, constant pressure
control, constant temperature control, accessory
maintenance and phase sequence inspection

Goodrive300-21 integrated machine for air compressor Product overview
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Category
Function
Specification
Analog input of pressure
Two-channel 4–20mA/0–1.6MPa input
Analog input of
temperature
Two-channel temperature analog input; resolution
rate: 1℃, range: -20℃–150℃
Digital input
Five-channel normal input; max. frequency: 1kHz
Digital output
One-channel Y terminal output, two-channel relay
output (NO) 250VAC/3A
Fault protection function
Provide over 30 kinds of fault protection function:
overcurrent, overvoltage, undervoltage,
over-temperature, phase-loss and overload.
Communication 485
One-channel 485 communication (two terminal
interfaces)
Others
Installation mode
Wall or floor installation
Running environment
-10–50℃, derate when temperature is over 40℃,
derate 1% for each additional 1℃.
Protection class
IP20
Pollution level
Level 2
Cooling mode
Forced air cooling
DC reactor
Standard configuration
EMC filter
Optional external filter: meet IEC61800-3 C2
requirement.
Note: When the voltage of the integrated machine is above 440VAC, the power frequency
transformer inside the integrated machine needs to be customized as needed.
1.2. Product nameplate
Fig 1.1 Product nameplate
Note: This is just an example of Goodrive300-21 nameplate, in which the CE/TUV/IP20 part will be
marked according to actual certification conditions.
1.3. Type designation
GD300-21 –022 G –4
①②③④
Fig 1.2 Product model
Model: GD300-21-022G-4
Power(Output): 22kW(motor) 1kW(fan)
Input: AC 3PH 380V(-15%)-440V(+10%) 45A 47Hz-63Hz
Output: AC 3PH 0V-Uinput 45A 0Hz-400Hz(motor)
AC 3PH 0V-Uinput 3A 0Hz-50Hz(fan)
Shenzhen INVT Electric Co., Ltd.
S/N: Made in China
IP20

Goodrive300-21 integrated machine for air compressor Product overview
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Field
Symbol
Instruction
Detailed description
Abbreviation of
product series
①
Abbreviation of
product series
Goodrive300-21: GD300-21 series dual inverter
integrated machine for air compressor
Rated power
②
Power class
022: 22kW
Load type
③
Load type
G: Constant torque load
Voltage class
④
Voltage class
2: AC 3PH 220V(-15%)–240V(+10%)
4: AC 3PH 380V(-15%)–440V(+10%)
1.4. Rated value
Model
Rated input
current of the
integrated
machine (A)
Main motor inverter
Fan inverter
Rated output
power (kW)
Rated output
current (A)
Rated output
power (kW)
Rated output
current (A)
GD300-21-7R5G-2
35
7.5
30
1
4.2
GD300-21-011G-2
48
11
42
1
4.2
GD300-21-015G-2
60
15
55
1
4.2
GD300-21-018G-2
75
18.5
70
1
4.2
GD300-21-022G-2
90
22
80
1.5
7.5
GD300-21-030G-2
120
30
110
1.5
7.5
GD300-21-037G-2
145
37
130
1.5
7.5
GD300-21-045G-2
175
45
160
3
11
GD300-21-015G-4
33
15
32
1
3
GD300-21-018G-4
38
18.5
38
1
3
GD300-21-022G-4
45
22
45
1
3
GD300-21-030G-4
60
30
60
1.5
3.7
GD300-21-037G-4
75
37
75
1.5
3.7
GD300-21-045G-4
93
45
92
3
6.8
GD300-21-055G-4
112
55
115
3
6.8
GD300-21-075G-4
146
75
150
3
6.8
GD300-21-090G-4
175
90
180
4
9.5
Note:
1. The rated input current of 15–90kW integrated machine is the actual result gained under 380V
input voltage.
2. The rated output current is defined as the output current under 380V output voltage.

Goodrive300-21 integrated machine for air compressor Installation guidance
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2. Installation guidance
2.1. Wiring and terminal instruction of main circuit
2.1.1. Wiring diagram of main circuit
R
S
T
U1
V1
W1
U2
V2
W2
Goodrive300-21
Master
Fan
Fig 2.1 Wiring diagram of main circuit
2.1.2. Terminal diagram of main circuit
The terminal layout of 15–22kW, 30kW–37kW and 45–90kW main circuit slightly differs from each
other. In below figure, 15–22kW and 45–90kW models are taken as examples for terminal layout.
Fig 2.2 Terminal layout of 15–22kW

Goodrive300-21 integrated machine for air compressor Installation guidance
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Fig 2.3 Terminal layout of 45–90kW
Table 2.1 Terminal instruction
Terminal symbol
Terminal function
UA, UB, UC
1. Used for voltage sampling connection of optional power detection
components.
2. Used for input connection of optional contactor components.
R, S, T
3PH AC input terminal, connected to the grid
U1, V1, W1
3PH AC output terminal, connected to main motor of air compressor
U2, V2, W2
3PH AC output terminal, connected to the fan
Grounding terminal of safety protection, each machine must be grounded.
Note:
1. Do not use asymmetrically constructed motor cable. If there is a symmetrically constructed
ground conductor in the motor cable in addition to the conductive shielding layer, ground the
ground conductor at the inverter end and motor end.
2. Lay the motor cable, input power cable, and control cable separately.
3. Before powering on the system, ensure that U1/V1/W1 or U2/V2/W2 are not short-circuited to PE
on the output side. Otherwise, tripping may occur on the power distribution cabinet when the
system is being powered on.

Goodrive300-21 integrated machine for air compressor Installation guidance
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2.2. Control circuit connection and terminal instruction
2.2.1. Control circuit layout diagram
TA1
TC1
TA2
TC2
P1+
P1-
P2+
P2-
PTA1 PTB1 PTA2 PTB2
S1 S2 S3 S4 S5 Y1
COM
+24V
GND
485+
485-
Goodrive300-21 control
board
34PIN 26PIN
3 1
CN9 CN1 CN2
CN17
CN7
CN8
CN10 CN11 CN12 CN13 CN14
CN15
F1
CN6
J7
J8
COM
+24V
GND
485+
485-
+24V
GND
SW1
+24V
COM J5
485 ON
PE
CGND
PE
CN14-5
GND
ON
J9
J6
VI
I V
PE/CGND
Fig 2.4 Control circuit layout diagram
Table 2.2 Terminal instruction
Terminal
symbol
Name
Remark
CN1
Flat cable interface
Connected to drive board, master control signal wire
CN17
Power interface
Outputs +24V power, can be used to power up external GPRS.
CN2
Flat cable interface
Connected to drive board, fan control signal wire
CN6
Keypad interface
Reserved interface, connected with keypad
CN15
Power detection
interface
Connected to power detection module, provides +24V power and
485 communication interface
CN14
Touch screen
interface
Connected to touch screen, provide +24V power and 485
communication interface
CN13
Digital input terminal
Multi-function input terminal
CN12
Temperature
detection terminal
Connected to PT100 temperature sensor
CN11
Pressure detection
terminal
Connected to pressure sensor
CN10
Relay output
terminal
Connected to solenoid valve or contactor coil
F1
Fuse (0.6A/250VAC)
Short circuit of solenoid valve/contactor coil terminal or
overcurrent protection
CN9
220V/110V voltage
input terminal
Connected to internal power frequency transformer
CN7
220V voltage
Select this terminal with jumpers when users select the solenoid

Goodrive300-21 integrated machine for air compressor Installation guidance
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Terminal
symbol
Name
Remark
selection terminal
valve with 220V coil or the contactor. Note: The default selection
is 220V voltage terminal
CN8
110V voltage
selection terminal
Select this terminal with jumpers when users select the solenoid
valve with 110V coil or the contactor.
J5
Access terminal for
485 communication
terminal resistor
485 corresponds to access terminal resistor. Does not connect
terminal resistor by default.
J6
Short-circuit terminal
of PE and GND
ON corresponds to short-circuit. No short circuit by default
J7
Jumper terminal
Corresponds to P1+, P1- pressure analog signal selection. I
corresponds to current signal, V to voltage signal. The default is
current input signal.
J8
Jumper terminal
Corresponds to P2+, P2- pressure analog signal selection. I
corresponds to current signal, V to voltage signal. The default is
current input signal.
J9
PE/CGND selection
terminal
485 communication is non-isolation mode. CN14-5 is short
circuited with PE by default.
SW1
Toggle switch
Set to +24V terminal by default. See details at fig 2.5 and fig 2.6.
●
●
●
COM
+24V
PW
COM
+24V •
•
S1
S2
•
SW1
COM
+24V
PW
COM
+24V •
•
S1
S2
•
●
●
●
+24V
SW1
Fig 2.5 Internal power (NPN mode) Fig 2.6 External power (PNP mode)
When digital input adopts internal +24V, set the toggle switch according to fig. 2.5 and short circuit
+24V with PW. When digital input adopts external +24V, set the toggle switch according to fig 2.6 and
short circuit COM with PW.

Goodrive300-21 integrated machine for air compressor Installation guidance
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2.2.2. Wiring diagram of control circuit
TA1 TC1 TA2 TC2
P1+ P1- P2+ P2-
PTA1 PTB1 PTA2 PTB2
S1 S2 S3 S4 S5 Y1
COM
Solenoid
valve
+24V
GND
485+ 485-
PE\CGND
GD300-21 control board +24V
GND
485+
485-
+24V
GND
485A+ 485A-
PE
485C+ 485C-
HMIHMI
+24V
GND
485A+ 485A-
PE
485C+ 485C- 485B- 485B+ PE
RS485 joint control
Y1: Fault output signal
Oil gas temp.
Pressure sensor
interface
24V 4-20mA
PT100 temperature
sensor interface Multi-function terminal
Output voltage
220/110VAC
coil Contactor
coil Exhaust
pressure Auxiliary
pressure S1：E-stop signal (NC)
S2-S5: Customized input
Auxiliary
temp.
CN15
+24V
GND
13 CN17
COM
485B- 485B+
PE
GD300-21
control board RS485
J1
485+ 485-
+24V
GND
485A-
GND
+5V
485A+
Power collection
module
(Optional)
V+
V-
A+
B-
J2
(Optional)
Remote data collection terminal
Fig 2.7 Wiring diagram of control circuit
Note: The solid line represents the recommended wiring diagram which carries the least wiring for
ensuring system operation. The dotted line represents the wiring diagram used when discrepancy
occurred to the configuration of integrated machine.
2.2.3. User terminal instruction of control circuit
Table 2.3 User terminal instruction of control circuit
Category
Terminal
symbol
Terminal name
Terminal function
Power
+24V
+24V power
Provide +24V±5% power to the external; max.
output current 1A.
Used for powering up GPRS, touch screen,
power detection module
GND
+24V power GND
+24V power reference GND
PT100 signal
input
PTA1
Temperature
analog signal 1
1. Resolution rate: 1℃
2. Range: -20℃–150℃
3.: Detection precision: 3℃
PTB1
PTA2
Temperature
analog signal 2
PTB2
Pressure signal
input
P1+
Pressure analog
signal 1
1. Input range: Current and voltage is optional, 4–
20mA/2–10V corresponds to 0–1.6MPa; P1 is
P1-

Goodrive300-21 integrated machine for air compressor Installation guidance
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Category
Terminal
symbol
Terminal name
Terminal function
P2+
Pressure analog
signal 2
switched by jumper J7 while P2 by J8
2. Input impedance: 20kΩ during voltage input
and 500Ω during current input
3. Resolution rate: min. 5mV
4. Error: ±1%, 25℃
P2-
Digital input
S1
Digital input 1
1. Internal impedance: 3.3 kΩ
2. 12–30V voltage input is acceptable
3. Max. input frequency: 1kHz
S2
Digital input 2
S3
Digital input 3
S4
Digital input 4
S5
Digital input 5
COM
Digital reference
GND
Digital output
Y1
Digital output
1. Contact capacity: 200mA/30V
2. Output frequency range: 0–1kHz
Communication
485+,
485-
485
communication
485 communication terminal, adopt Modbus RTU
protocol
PE/CGND
PE/CGND
PE: When select PE by J9, it can be used in
connection terminal of 485 communication
shielded cable;
CGND: When select CGND by J10, it can be
used in connection terminal of 485
communication reference GND or shielded cable.
Solenoid valve
TA1
Solenoid valve coil
1. Contact capacity: 3A/AC250V, 1A/DC30V
2. Cannot used as high frequency switch output
(NOTE)
3. Voltage of power supply: 220V/110V, select via
CN7/CN8
4. Max. output power of internal power frequency
transformer: 30W
TC1
TA2
Contactor coil
TC2
Note: The connection terminal of solenoid valve/contactor cannot be connected to other load. When
the power of solenoid valve and contactor coil exceeds 30W, the power frequency transformer inside
the integrated machine needs to be customized or connected with external 220V power
independently.

Goodrive300-21 integrated machine for air compressor Instruction for panel display
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3. Instruction for panel display
The panel of Goodrive300-21 series air compressor integrated machine carries three LED indicators
(fault, running, power). The position and display state of the indicators are illustrated as below:
Fault
Run
Power
Fault
Run
Power
Fig 3.1 Diagram of indicator position
Display state of indicators
State instruction
Power indicator (green)
ON
Bus voltage is normal
Flash
Bus voltage is abnormal
Running indicator (green)
ON
Running
OFF
Stop
Fault indicator (read)
ON
Fault
OFF
Normal running

Goodrive300-21 integrated machine for air compressor Debugging guidance
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4. Debugging guidance
4.1. Wiring diagram of integrated machine system
Pressure sensor
interface PT100 temp. sensor
interface Multi-function
terminal
Output voltage
220/110VAC 24V 4-20mA
E-stop
signal Internal fault
signal output
Customized
input
Solenoid valve
coil Contactor coil
(optional) Exhaust
pressure Auxillary
pressure Oil gas temp. Auxillary temp.
PT100 PT100
AC input power
Motor shell grounding
Main motor
Motor shell grounding
Fan
RS485 joint control
Interface for optional parts
Interface
for
optional
parts
Remote data collection
terminal (optional)
Fig 4.1 Wiring diagram of integrated machine system
Note: The solid line represents the recommended wiring diagram which carries the least wiring for
ensuring system operation. The dotted line represents the wiring diagram used when discrepancy
occurred to the configuration of integrated machine.
4.2. Recommended layout process
The terminal layout of 15–22kW, 30kW–37kW and 45–90kW slightly differs from each other. 15–
22kW and 45–90kW are taken as examples for terminal layout.

Goodrive300-21 integrated machine for air compressor Debugging guidance
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AC power Main motor
R, S, T, ground wire through hole U1, V1, W1, ground wire through hole
Through-hole of controlling cable
Fan
U2, V2, W2, ground wire through hole
Through-hole of
optional parts cable
Through-hole of
controlling cable
Ventilation hole at the bottom of
integrated machine
Fig 4.2 Bottom view for 15–22kW
Controlling cableControlling
cable
Controlling cable Controlling cable
AC power cable Main motor
cable Fan cable
Data collection
terminal
shielded cable
grounding
Fig 4.3 Front wiring diagram for 15–22kW

Goodrive300-21 integrated machine for air compressor Debugging guidance
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AC power
R, S, T through
hole
Main motor
U1, V1, W1 through
hole
Through hole of
controlling cable
Through hole of
optional parts
cable
Through hole of
controlling cable
Fan
U2, V2, W2, ground wire
through hole
Ground wire
through hole
Through hole of
ground wire Ventilation hole at the
bottome of the integrated
machine
Fig 4.4 Bottom view for 45–90kW
Fig 4.5 Front wiring diagram for 45–90kW
Control cable
Control cable
Control cable
Data collection terminal
Shield cable grounding
Control cable
Optional parts cable
Ground line Ground line
Ground line
Fan cable
Main motor cable
AC power cable

Goodrive300-21 integrated machine for air compressor Debugging guidance
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Note:
1. There are two controlling cable through holes on the top and at the bottom of the integrated
machine cabinet, users can select which through-hole to use based on wiring condition. It is
recommended that the controlling cable is routed via top through-hole to realize separation
between controlling cable and motor cable and reduce interference. The motor temperature
detection or temperature protection cable which follows the motor power cable can be routed via
bottom through-hole.
2. Refer to B.6.3 for floor installation layout.
4.3. Function debugging procedures
It is recommended that Goodrive300-21 air compressor integrated machine adopt touch screen for
displaying and commissioning. The concrete procedures are listed as below: (if other controllers are
used, contact our technician)
1. Conduct wiring and routing according to Fig 4.1 and Fig 4.2; check carefully if the wiring is correct
and ensure the integrated machine and its shell GND is properly connected;
2. After power on, the touch screen HMI interface is shown as below:
Fig 4.6 Log-in interface

Goodrive300-21 integrated machine for air compressor Debugging guidance
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3. Click “click to enter” and enter working environment interface:
Fig 4.7 Working interface
4. Click “menu” in above interface and the interface is as below:
Fig 4.8 Menu interface

Goodrive300-21 integrated machine for air compressor Debugging guidance
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5. Click “system config” in touch screen menu and enter system configuration page, the interface is
shown as below:
Fig 4.9 System configuration interface
The fan inverter is enabled by default. Debug according to the debugging procedures.
Step 1: Click “Dbg guidelines” in system configuration interface and the interface is as below:
Fig 4.10 Debugging guidance interface
After read through above procedures, click “BACK”to enter system configuration.
Step 2: Click “motor para set” in system configuration interface and the interface is shown as below:
Select motor type, if select “synchronous motor”, it is necessary to set the max. frequency, rated
frequency, rated power, rated voltage, rated current, number of pole pairs, carrier frequency; if select

Goodrive300-21 integrated machine for air compressor Debugging guidance
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“asynchronous motor, it is necessary to set max. frequency, rated frequency, rated power, rated
voltage, rated current, rated rotation speed and carrier frequency.
Fig 4.11 Master parameter setting interface
After setting motor parameters according to actual motor nameplate parameters, click “para
autotuning” and after recognition completes, click “Next page” and set fan motor parameter (it is
necessary to set the max. frequency, rated frequency, rated power, rated voltage, rated current and
rated rotation speed.)