INVT Goodrive300-01A Series User manual

Goodrive300-01A series VFD for air compressor Preface
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Preface
The Goodrive300-01Aseries variable-frequency drive (VFD) for air compressors (hereinafter referred
to as Goodrive300-01A VFD) is designed and optimized based on Goodrive300-01 to be applied in
synchronous/asynchronous air compressor for optimal control performance.
The Goodrive300-01A VFD carries air compressor-specific control logic to connect to various signals
of the air compressor directly eg emergency-stop, pressure and temperature signals, fan transformer
and fault signals. It can realize control over solenoid valve and provide 24V power to HMI. It also
carries Modbus communication interface to fit the HMI without external controller or PLC, simplifying
the electrical design while realizing excellent frequency-conversion control.
Goodrive300-01A VFD has undergone compatibility test with multiple mainstream motor or master
manufacturers based on the application features and actual needs of air compressor industry. It
adopts dedicated PID and unique flux-weakening design to enable the air compressor to start quickly
and run smoothly with max driving frequency reaching 400Hz and above. Through high-power
density design and compact structure, it simplifies commissioning procedures and downgrades
product size. It adopts independent air duct, heavy-load and high power factor design to cope with
challenging field and grid environment.
The Goodrive300-01A VFD in the range of 7.5–15kW supports built-in contactor units, low-frequency
transformer and low-frequency fan. It can provide 220V/110V power to supply the solenoid valve
(hereinafter referred to as Goodrive300-01A single VFD integrated machine) and act as the extended
application of the small power of Goodrive300-21 dual VFD integrated machine, thus satisfying
diversified application needs of integrated machine.
Read this manual carefully before installation to ensure Goodrive300-01A VFD can be installed and
operated correctly to give full play to its excellent performance.
If the product is ultimately used for military affairs or manufacture of weapon, it will be listed on the
export control formulated by the 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.

Goodrive300-01A series VFD for air compressor Contents
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Contents
Preface............................................................................................................................................i
Contents.........................................................................................................................................ii
1 Safety precautions......................................................................................................................1
1.1 Contents of this chapter....................................................................................................1
1.2 Definition of safety information..........................................................................................1
1.3 Warning symbols..............................................................................................................1
1.4 Safety instruction..............................................................................................................1
2 Product overview........................................................................................................................4
2.1 Product specification........................................................................................................4
2.2 Product nameplate...........................................................................................................6
2.3 Model description.............................................................................................................6
2.4 Rated specifications.........................................................................................................7
3 Wiring instruction.......................................................................................................................8
3.1 Main circuit wiring and terminal description.......................................................................8
3.2 Control circuit wiring and terminal description.................................................................14
4 Commissioning instruction......................................................................................................18
4.1 Commissioning instruction for the dual-VFD air compressor ...........................................18
4.2 Commissioning guidance for single-VFD air compressor ................................................25
4.3 Commissioning guidance for single-VFD integrated machine..........................................27
5 Function code description........................................................................................................28
5.1 Function codes...............................................................................................................28
5.2 Control logic of the air compressor .................................................................................62
6 Fault information and troubleshooting....................................................................................65
6.1 VFD faults and solutions.................................................................................................65
6.2 Fault contents and solutions of air compressor equipment..............................................69
Appendix A Product dimension ..................................................................................................73
A.1 Keypad diagram.............................................................................................................73
A.2 External keypad installation dimensions.........................................................................73
A.3 Wall installation dimension.............................................................................................74
A.4 Flange installation dimension.........................................................................................76
A.5 Product weight and package dimension .........................................................................78
Appendix B Optional accessories...............................................................................................80
B.1 Touch screen .................................................................................................................80
B.2 Filter..............................................................................................................................80
B.3 Reactor..........................................................................................................................81
Appendix C Current transformer of the fan................................................................................82
C.1 Current transformer model selections.............................................................................82
C.2 Wiring of current transformer of the fan..........................................................................82
C.3 Parameter setup of current transformer of the fan..........................................................83
Appendix D Communication protocol ........................................................................................84

Goodrive300-01A series VFD for air compressor Contents
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D.1 Application mode ...........................................................................................................84
D.2 RTU command code and communication data...............................................................84
Appendix E Common EMC problems and troubleshooting.......................................................90
E.1 Interference problems of meter switches and sensors....................................................90
E.2 485 communication interferences...................................................................................90
E.3 Unstoppable or shimmering indicator caused by coupling of motor cable........................91
E.4 Leakage current and residual current device (RCD).......................................................91
E.5 Problem of charged device shell ....................................................................................92

Goodrive300-01A series VFD for air compressor Safety precautions
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1 Safety precautions
1.1 Contents of this chapter
Read this manual carefully and follow all safety precautions before moving, installing, operating and
servicing the variable-frequency drive (VFD). Should the safety precautions be ignored, physical
injury or death may occur, or damage may occur to the devices.
If any physical injury or death or damage to the devices occurs due to neglect of the safety
precautions in the manual, our company will not be responsible for any damages and we are not
legally bound in any manner.
1.2 Definition of safety information
Danger: Serious physical injury or even death may occur if related requirements are not followed
Warning: Physical injury or damage to the devices may occur if related requirements are not followed
Note: Procedures which must be taken to ensure proper operation.
Qualified electricians: People working on the equipment should take part in professional electrical
and safety training, receive related certification and be familiar with all steps and requirements related
to installation, commissioning, operation and maintenance of the equipment to prevent any
emergency.
1.3 Warning symbols
Warnings caution you about conditions which can result in serious injury or death and/or damage to
the equipment, and advice on how to avoid the danger. Following warning symbols are used in this
manual:
Sign
Name
Description
Abbreviation
Danger
Danger
Serious physical injury or even
death may occur if related
requirements are not followed.
Warning
Warning
Physical injury or damage to the
devices may occur if related
requirements are not followed.
No touch
Electrostatic
discharge
Damage to the PCBA board may
occur if related requirements are not
followed.
Hot
Hot side
The VFD base may become hot. Do
not touch.
Note
Note
Procedures which must be taken to
ensure proper operation.
Note
1.4 Safety instruction
Only well-trained and qualified personnel are allowed to operate on the VFD.
Do not carry out wiring, inspection or component replacement when the
power supply is applied. Ensure all the input power supplies are

Goodrive300-01A series VFD for air compressor Safety precautions
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disconnected before wiring and inspection, and always wait for at least the
time designated on the VFD or until the DC bus voltage is less than 36V. The
waiting time is shown as below.
VFD model
Minimum waiting time
380V
7.5kW-200kW
5 minutes
Do not refit the VFD unless authorized; otherwise, fire, electric shock or other
injuries may occur.
The base of the radiator may become hot during running. Do not touch to
avoid hurt.
The electrical parts and components inside the VFD are
electrostatic-sensitive. Take proper measurements to avoid electrostatic
discharge during related operation.
1.4.1 Shipment and installation
Install the VFD on fire-retardant material and keep the VFD away from
combustible materials.
Connect the optional brake parts (brake resistors, brake units or feedback
units) according to the wiring diagram.
Do not operate on the VFD if there is any damage or components loss to the
VFD.
Do not touch the VFD with wet items or body; otherwise, electric shock may
occur.
Note:
Select appropriate moving and installing tools to ensure a safe and normal running of the VFD
and avoid physical injury or death. For physical safety, the installer must take mechanical
protective measures, such as wearing exposure shoes and working uniforms.
Ensure the VFD suffers no physical impact or vibration during moving and installation.
Do not carry the VFD by its front cover only as the cover may fall off.
Installation site must be away from children and other public places.
The VFD cannot meet the requirements of low voltage protection in IEC61800-5-1 if the altitude
of the installation site is above 2000m.
The application environment should be proper and appropriate (see details in Installation
environment)
Prevent the screws, cables and other conductive objects from falling into the VFD.
The leakage current of the VFD may be above 3.5mA during operation. Ground with proper
techniques and ensure the grounding resistor is less than 10Ω. The conductivity of PE grounding
conductor is the same as that of the phase conductor (with the same cross sectional area).
R, S and T are the input terminals of the power supply, while U, V and W are the output motor
terminals. Connect the input power cables and motor cables correctly; otherwise, damage to the
VFD may occur.

Goodrive300-01A series VFD for air compressor Safety precautions
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1.4.2 Commissioning and running
Disconnect all power supplies of the VFD before terminal wiring and wait for
at least the designated time after disconnecting the power supply.
High voltage is present inside the VFD during running. Do not carry out any
operation on the VFD except for keypad setting.
The VFD may start up by itself when P01.21=1. Do not get close to the VFD
and motor.
The VFD cannot be used as “Emergency-stop device”
The VFD cannot be used to brake the motor suddenly. A mechanical brake
device must be installed.
Note:
Do not switch on or off the input power supply of the VFD frequently.
For VFDs that have been stored for a long time, check and fix the capacitance and try pilot run
first before actual application.
Close the front cover before running the VFD; otherwise, electric shock may occur.
1.4.3 Maintenance and component replacement
Only well-trained and qualified professionals are allowed to carry out
maintenance, inspection, and component replacement of the VFD.
Disconnect all power supplies of the VFD before terminal wiring. Wait for at
least the time designated on the VFD after disconnecting the power supply.
Take proper measures to prevent screws, cables and other conductive
objects from falling into the VFD during maintenance and component
replacement.
Note:
Select proper torque to tighten the screws.
Keep the VFD and its parts and components away from combustible materials during
maintenance and component replacement.
Do not carry out any insulation voltage-endurance test on the VFD or measure the control circuit
of the VFD by megameter.
Take anti-static measures on internal parts during maintenance and component replacement.
1.4.4 Scrap treatment
There are heavy metals in the VFD. Treat with it as industrial effluent.
When the life cycle ends, the product should enter the recycling system. Dispose of
it separately at an appropriate collection point instead of placing it in the normal
waste stream.

Goodrive300-01A series VFD for air compressor Product overview
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2 Product overview
2.1 Product specification
Category
Function
Specification
Power input
Input voltage of the VFD (V)
3PH 380V (-15%)–440V (+10%)
Rated input current (A)
Refer to 2.4 "Rated specifications".
Rated input frequency (Hz)
50Hz or 60Hz, allowed range: 47–63Hz
Power
＞97%
Power factor
0.9
Frequency
-conversion
power output
Output voltage(V)
Equal to input voltage, error ratio: less than 5%
Rated output current (A)
Refer to 2.4 "Rated specifications".
Rated output power (kW)
Refer to 2.4 "Rated specifications".
Output frequency(Hz)
0–400Hz
Power
–frequency fan
output (single
VFD integrated
machine)
Output voltage (V)
Equal to input voltage, error ratio: less than 1%
Rated output current (A)
Refer to 2.4 "Rated specifications".
Rated output power (kW)
Refer to 2.4 "Rated specifications".
Output frequency (Hz)
Equal to input frequency, error ratio: less than
1%
Power output
+24VDC power
24W
220VAC/110VAC
15W (for single VFD integrated machine)
Running
control
performance
Control mode
Open loop vector, space voltage vector
Speed regulation 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)
Frequency reference mode
PID control, Modbus communication, P1- and
P2- analog input, keypad digital input
Overload capacity
1min at 150%
Dedicated function
Sleep and wake-up function, constant pressure
control, constant temperature control, parts
maintenance, phase sequence detection, fan
overload protection
Analog pressure input
Two 4–20mA/0–1.6MPa inputs
Analog temperature input
Two analog temperature inputs; resolution rate:
1°C ; Range: -20°C –150°C ; precision error: 3°C
Digital input
Five normal inputs, max frequency: 1kHz
Digital output
Two relay outputs (NO) 250VAC/3A; one
convertible relay output 250VAC/3A

Goodrive300-01A series VFD for air compressor Product overview
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Category
Function
Specification
Fault protection function
Over 30 kinds of fault protection functions:
overcurrent, overvoltage, undervoltage,
overtemperature, phase loss, overload, fan
current imbalance, etc.
Fan protection function
Overload protection: 1 min at 120% overload;
48s at 130% overload; 24s at 150% overload;
8s at 160% overload; 5s at 200% overload; 1s
at 300% overload
Current imbalance protection: when any two
phases differ from each other by 60–75%, stop
at fault, action time ≤5s
Output short-circuit protection: the protection
can be implemented by using the internal fuse
(applicable to single VFD integrated machine
only)
Output short-to-ground protection: the
protection can be implemented by using the
internal fuse (applicable to single VFD
integrated machine only)
Solenoid valve port protection
220V/110V output short-circuit protection: the
protection can be implemented by using the
internal fuse (applicable to single VFD
integrated machine only)
485 communication
One 485 communication (three terminal
interfaces)
Others
Installation mode
Wall installation, flange installation
Temperature of running
environment
-10–50°C , derating is required if the
temperature exceeds 40°C ; derate by 1% for
every increased 1°C
Protection level
IP20
Pollution level
Level 2
Cooling mode
Forced-air cooling
DC reactor
Optional built-in DC reactor for 7.5–11kW;
Built-in DC reactor is included in standard
configuration for 15–110kW;
Optional external DC reactor for 132–200kW
EMC filter
Built-in C3 filter is included in standard
configuration. ECM filter is set to be invalid by
default, if it is necessary to enable it, users can
connect J10 (see 3.1.3 and 3.1.4 for the

Goodrive300-01A series VFD for air compressor Product overview
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Category
Function
Specification
position of J10).
Users can choose the optional external filter
which fulfills the requirements of IEC61800-3
C2.
Note:
1. Only single VFD integrated machine supports power-frequency fan output and 220V/110V power
output, for example, GD300-01A-7R5G-4-CT, GD300-01A-011G-4-CT, and
GD300-01A-015G-4-CT.
2. When the input voltage exceeds 440VAC, the power-frequency transformer inside the single VFD
integrated machine will need to be customized.
2.2 Product nameplate
Figure 2-1 Product nameplate
Note: This is an example of the standard model. CE, TUV, and IP20 are marked according to the
actual certification condition.
2.3 Model description
The model code contains product information. Users can find the model code on the VFD nameplate
or simple nameplate.
GD300-01A –015 G –4 -CT
③ ④ ⑤
②
①
Figure 2-2 Product model
Sign
Description
Content
○
1
Abbreviation of product series
Goodrive300-01A: GD300-01A VFD for air compressor
○
2
Power class
015: 15kW
○
3
Load type
G: Constant torque load
○
4
Voltage class
4: AC 3PH 380V(-15%)–440V(+10%)
○
5
Power-frequency fan/
Built-in transformer
No character: VFD dedicated for single-VFD air
compressor
Single-VFD air compressor integrated machine
C: Built-in contactor units, supports power-frequency fan
output

Goodrive300-01A series VFD for air compressor Product overview
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Sign
Description
Content
T: Built-in power-frequency transformer, providing
220V/110V power supply
2.4 Rated specifications
2.4.1 Rated specifications of single-VFD products
Product model
Output power (kW)
Input current (A)
Output current (A)
GD300-01A-7R5G-4
7.5
25
18.5
GD300-01A-011G-4
11
32
25
GD300-01A-015G-4
15
32
32
GD300-01A-018G-4
18.5
37
38
GD300-01A-022G-4
22
44
45
GD300-01A-030G-4
30
58
60
GD300-01A-037G-4
37
72
75
GD300-01A-045G-4
45
87
92
GD300-01A-055G-4
55
106
115
GD300-01A-075G-4
75
140
150
GD300-01A-090G-4
90
170
180
GD300-01A-110G-4
110
202
215
GD300-01A-132G-4
132
265
260
GD300-01A-160G-4
160
310
305
GD300-01A-185G-4
185
345
340
GD300-01A-200G-4
200
385
380
Note:
1. Rated input current is the actually measured result under 380V input voltage; 7.5–11kW and
132–200kW are the actually measured results in cases where there is no DC reactor; 15–110kW
is the actually measured result in cases where there is DC reactor.
2. Rated output current is defined as the output current under 380V output voltage.
2.4.2 Rated value of single-VFD integrated machine
Model
Rated input
current of the
integrated
machine (A)
Frequency conversion of
main motor
Power frequency of the
fan
Rated output
power (kW)
Rated
output
current (A)
Rated
output
power (kW)
Rated
output
current (A)
GD300-01A-7R5G-4-CT
28
7.5
18.5
0.75
2.5
GD300-01A-011G-4-CT
35
11
25
0.75
2.5
GD300-01A-015G-4-CT
34
15
32
0.75
2.5
Note:
1. Rated input current is the actually measured result under 380V input voltage without DC reactor.
2. Rated output current is defined as the output current under 380V output voltage.

Goodrive300-01A series VFD for air compressor Wiring instruction
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3 Wiring instruction
3.1 Main circuit wiring and terminal description
3.1.1 Main circuit wiring diagram of single VFD
(+)
(-)
PB
R
S
T
U
V
W
Figure 3-1 7.5kW main circuit wiring diagram
Note: There is brake circuit but no DC reactor for 7.5kW
R
S
T
U
V
W
Figure 3-2 11–15kW main circuit wiring diagram
Note: There is optional built-in DC reactor for 11kW and standard built-in DC reactor for 15kW.
(+)
(-)
PB
R
S
T
U
V
W
Figure 3-3 18.5–110kW main circuit wiring diagram
Note: There is internal brake circuit for 18.5–22kW; there is no internal brake circuit for 30–110kW;
there is standard internal DC reactor for 18.5–110kW.

Goodrive300-01A series VFD for air compressor Wiring instruction
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(+)
(-)
P1
R
S
T
U
V
W
Figure 3-4 132–200kW main circuit wiring diagram
Note:
1. Optional external DC reactor for 132–200kW.
2. See Appendix B for filter and reactor model selection.
3.1.2 Main circuit wiring diagram of single-VFD integrated machine
R
S
T
U1
V1
W1
U2
V2
W2
220V/TAH
0V/TC
Master
Fan
Solenoid
valve
110V/TAL
Figure 3-5 Main circuit wiring diagram for 7.5–15kW single-VFD integrated machine
Note: Optional built-in DC reactor for 7.5–11kW.
3.1.3 Main circuit terminal diagram of single VFD
Figure 3-6 7.5kW main circuit terminal diagram

Goodrive300-01A series VFD for air compressor Wiring instruction
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Figure 3-7 11–15kW main circuit terminal diagram
Figure 3-8 18.5–22kW main circuit terminal diagram
Figure 3-9 30–37kW main circuit terminal diagram

Goodrive300-01A series VFD for air compressor Wiring instruction
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Figure 3-10 45–55kW main circuit terminal diagram
Figure 3-11 75kW main circuit terminal diagram
Figure 3-12 90–110kW main circuit terminal diagram

Goodrive300-01A series VFD for air compressor Wiring instruction
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Figure 3-13 132–200kW main circuit terminal diagram
Table 3-1 Screw specification and torque of main circuit terminals of 7.5kW-200kW single VFD
Power range (kW)
Terminal screw specification
Torque of torque driver (N·m)
7.5–15
M5
2.5
18.5–37
M6
3.5
45–110
M8
10
132–200
M12
35
Table 3-2 Main circuit terminal description of single VFD
Terminal
sign
Terminal name
Terminal function
11–15kW
7.5kW and
18.5–110kW
132kW and above
R, S, T
Main circuit power input
3PH AC input terminal,
connected to the grid
P1
None
DC reactor terminal 1
P1, (+) connect to DC reactor
terminal
(+)
None
Reserved
DC reactor terminal 2
(-)
None
Reserved
Reserved
PB
None
Reserved
None
U, V, W
VFD output
3PH AC output terminal,
connected to the motor
Ground terminal for safety protection
Each machine must be
grounded; two PEs are
provided; and grounding
resistance is less than 10Ω.

Goodrive300-01A series VFD for air compressor Wiring instruction
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3.1.4 Main circuit terminal diagram of single-VFD integrated machine
Figure 3-14 Main circuit terminal diagram of 7.5–15kW single-VFD integrated machine
Table 3-3 Screw specification and torque of main circuit terminal of 7.5kW–15kW single-VFD
integrated machine7.5kW–15kW
Power range (kW)
Terminal screw specification
Torque of torque driver (N·m)
7.5-15
M5
2.5
Table 3-4 Main circuit terminal description of single VFD integrated machine
Terminal sign
Function
POWER
R, S, T
3PH AC input terminal, connected to the grid
MOTOR
U1, V1, W1
3PH AC output terminal, connected to the main motor of air
compressor
FAN
U2, V2, W2
3PH AC output terminal, connected to the fan
SOLENOID
220V/TAH,
110V/TAL,
0V/TC
220V/110V output terminal, connected to solenoid valve coil
Note:
1. Max. output power of internal power-frequency transformer:
15W
2. When users choose the solenoid valve with 220V coil, connect
the solenoid coil to 220V and 0V connecting terminals;
3. When users choose the solenoid valve with 110V coil, connect
the solenoid coil to 110V and 0V connecting terminals.
Each machine must be grounded, three PEs, grounding
resistance is less than 10Ω
Note: Do not connect the connecting terminal of solenoid valve to other external loads; if the power of
solenoid valve coil exceeds 15W, the power-frequency transformer inside the integrated machine will
need to be customized or connected to external 220V/110V power independently.

Goodrive300-01A series VFD for air compressor Wiring instruction
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3.2 Control circuit wiring and terminal description
3.2.1 Control circuit wiring diagram
Emergency-stop
Fan fault
User-defined
User-defined
COM
S4
S3
S2
S1
S5
PTB1
PTA1
PTB2
PTA2
P1-
P1+
P2-
P2+
Ib
Ia
Ic
GND
+24V
485-
485+
PT100
PT100
Pressure transmitter
Pressure transmitter V I
V I
J7
J8
CN10
ON
0-10V/0-20mA
Analog output
AO1
GND
V I
COM
PW
+24V
J9
J5
J2
J6
to current transformer
to power detection module
RO1C
RO1A
RO3C
RO3B
RO3A
Relay 1 output
Relay 3 output
RO2C
RO2A
Relay 2 output
GND
PE
GD300-01A series
--shielded cable
--twisted pair
to wireless data collection
terminal
to touch screen or
controller
GND
+24V
485-
485+
485+
GND
+24V
485-
CGND
/PE
CGNDJ10
PE
CN7-10
User-defined
Figure 3-15 Control circuit wiring diagram
J7 J8 J2 J5 J6
J9
CN4 CN7
RO1ARO1CRO2ARO2CRO3ARO3BRO3C
CN8
CN10
CN7-10
+24V
PW
COM
J10
P1+ P1- P2+ P2- PTA1 PTB1 PTA2 PTB2
COM S1 S2 S3 S4 S5 COM COM
+24V GND 485+ 485- Ia Ib Ic
+24V GND 485+ 485- AO1GND
PE/C
GND
+24V GND 485+ 485-
V
I
V
I
V
I ON
PE
GND
PE
CGND
Figure 3-16 Control circuit terminal diagram
Table 3-4 User terminal description of control circuit
Category
Sign
Name
Function
Power
+24V
+24V power
Provide +24V±5% power to the external,
max. output current: 1A
Can be used to power up GPRS, touch
screen and power detection module
GND
+24V, AO1, Ia, Ib, Ic
+24V, AO, Ia, Ib, Ic reference ground

Goodrive300-01A series VFD for air compressor Wiring instruction
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Category
Sign
Name
Function
reference ground
PT100 signal
input
PTA1
Analog temperature
signal 1
1. Resolution rate: 1°C
2. Range: -20°C –150°C
3. Detection precision: 3°C
PTB1
PTA2
Analog temperature
signal 2
PTB2
Pressure signal
input
P1+
Analog pressure signal 1
1. Input range: current/voltage is
optional, 0–20mA/0–10V; of which P1 is
switched via J7 and P2 via J8
2. Input impedance: 20kΩ during voltage
input; 500Ω during current input
3. Resolution rate: 5mV (minimum value)
4. Error: ±1%, 25°C
P1-
P2+
Analog pressure signal 2
P2-
Analog output
AO1
Analog output signal 1
1. Output range: 0–10V voltage or
0–20mA current; voltage or current
output is set by the jumper; AO1 is
switched via J2.
2. Error: ±1%, 25°C
Digital input
S1
Digital input 1
1. Internal impedance: 3.3kΩ
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 ground
Communication
485+,
485-
485 communication
485 communication terminal, adopting
the Modbus RTU protocol
PE/CGND
PE: When selecting PE through J10, it
can be used as the connecting terminal
of 485 communication shielded cable;
CGND: When selecting CGND through
J10, it can be used as the connecting
terminal of 485 communication shielded
cable
Relay output
RO1A
NO contact of relay 1
1. Contact capacity: 3A/AC250V,
1A/DC30V
2. Cannot be used as high-frequency
switch output
Note: RO1 port of single-VFD integrated
machine is connected to solenoid coil
port by default.
RO1C
Public contact of relay 1
RO2A
NO contact of relay 2
RO2C
Public contact of relay 2
RO3A
NO contact of relay 3
RO3B
NC contact of relay 1
RO3C
Public contact of relay 3
Current input
Ia
A-phase current input of
1 Range: 0–40A

Goodrive300-01A series VFD for air compressor Wiring instruction
-16-
Category
Sign
Name
Function
the fan
2. Error±3%, 25°C
3. Input impedance: 50Ω
Note: See Appendix C for model
selection of current transformer.
Ib
B-phase current input of
the fan
Ic
C-phase current input of
the fan
Jumper terminal
J7
P1-Analog signal
selection terminal
I corresponds to current signal, V
corresponds to voltage signal, and the
default is current input signal.
J8
P2-Analog signal
selection terminal
I corresponds to current signal, V
corresponds to voltage signal, and the
default is current input signal.
J2
AO1 analog output signal
selection terminal
I corresponds to current signal, V
corresponds to voltage signal, and the
default is voltage output signal.
J5
Connection terminal of
485 communication
terminal resistor
ON corresponds to terminal resistor. ON
is not connected to terminal resistor by
default.
J6
Short-connect terminal
between PE and GND
No short connection by default
J9
Internal/external power
selection terminal
PW is connected to +24V by default. See
details in fig 3.19 and fig 3.20.
J10
PE/CGND selection
terminal
For products below 75kW, 485
communication adopts non-isolation
mode, and CN7-10 is short connected to
PE by default.
For 75kW and above products, 485
communication adopts isolation mode,
and CN7-10 is short connected to CGND
by default, as shown in fig 3.18.
CGNDJ10 to controller
PE
CN7-10
GND
+24V
485-
485+
/PE
CGND
--twisted pair
--shielded cable
PE H9