Esco invt GD350A Series User manual

Product manual
Frequency inverter
GD350A Series
This operating instruction is to be read carefully and
kept at the place of installation of the device.
INVT - GD350A
INVT - GD350A

GD350A series high-performance multifunction VFD
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Preface
Thank you for choosing GD350A series variable-frequency drive (VFD).
If not otherwise specified in this manual, the VFD always indicates GD350A series VFD, which is a
high-performance multifunctional VFD that can drive both synchronous motors (SMs) and
asynchronous motors (AMs) and supports torque control, speed control, and position control. The VFD
is armed with advanced vector control technology and the latest digital processor dedicated for motor
control, thus enhancing product reliability and adaptability to the environment. The VFD adopts
customized and industrialized design to realize excellent control performance through optimized
functions and flexible applications.
In order to meet diversified customer demands, the VFD provides abundant expansion cards including
programmable expansion card, PG card, communication card and I/O expansion card to achieve
various functions as needed. Each VFD can be installed with three expansion cards at most.
The programmable expansion card adopts the mainstream development environment for customers
to carry out secondary development easily, fulfilling varied customized needs and reducing customer
cost.
The PG card supports a variety of encoders like incremental encoders and resolver-type encoders. In
addition, it also supports pulse reference and frequency-division output. The PG card adopts digital
filter technology to improve EMC performance and to realize stable transmission of the encoder signal
over a long distance. It is equipped with encoder offline detection function to contain the impact of
system faults.
The VFD supports multiple kinds of popular communication modes to realize complicated system
solutions. It can be connected to the internet with optional wireless communication card, by which you
can monitor the VFD state anywhere any time through mobile App.
The VFD uses high power density design. Some power ranges carry built-in DC reactor and braking
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 VFD is installed and operated in a proper manner to give full play to its
excellent performance and powerful functions.
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.
We reserve the right to update the manual information without prior notice and have the final
interpretation for the manual content.

GD350A series high-performance multifunction VFD
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Contents
Preface ...........................................................................................................................................i
Contents.........................................................................................................................................ii
1 Safety precautions......................................................................................................................1
1.1 What this chapter contains ..................................................................................................1
1.2 Safety definition ..................................................................................................................1
1.3 Warning symbols.................................................................................................................1
1.4 Safety guidelines.................................................................................................................2
2 Quick startup...............................................................................................................................5
2.1 What this chapter contains ..................................................................................................5
2.2 Unpacking inspection ..........................................................................................................5
2.3 Checking before applying....................................................................................................5
2.4 Environment........................................................................................................................5
2.5 Installation confirmation.......................................................................................................6
2.6 Basic commissioning...........................................................................................................6
3 Product overview ........................................................................................................................8
3.1 What this chapter contains ..................................................................................................8
3.2 Basic principle.....................................................................................................................8
3.3 Product specifications ....................................................................................................... 10
3.4 Product nameplate............................................................................................................13
3.5 Model designation code ....................................................................................................13
3.6 Product ratings.................................................................................................................. 14
3.7 Structure diagram .............................................................................................................15
4 Installation guidelines ..............................................................................................................17
4.1 What this chapter contains ................................................................................................17
4.2 Mechanical installation ......................................................................................................17
4.3 Main circuit standard wiring...............................................................................................23
4.4 Control circuit standard wiring ........................................................................................... 28
4.5 Wiring protection ...............................................................................................................31
5 Basic operation guidelines.......................................................................................................33
5.1 What this chapter contains ................................................................................................33
5.2 Keypad introduction ..........................................................................................................33
5.3 Keypad display..................................................................................................................37
5.4 Operating the VFD by keypad ...........................................................................................39
5.5 Basic operations ...............................................................................................................52
6 Function parameter list........................................................................................................... 139
6.1 What this chapter contains .............................................................................................. 139
6.2 Function parameter list.................................................................................................... 139
7 Troubleshooting...................................................................................................................... 253

GD350A series high-performance multifunction VFD
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7.1 What this chapter contains .............................................................................................. 253
7.2 Indications of alarms and faults ....................................................................................... 253
7.3 Fault reset....................................................................................................................... 253
7.4 Fault history .................................................................................................................... 253
7.5 VFD faults and solutions ................................................................................................. 253
7.6 Analysis on common faults .............................................................................................. 262
7.7 Countermeasures on common interference ..................................................................... 268
8 Maintenance............................................................................................................................ 273
8.1 What this chapter contains .............................................................................................. 273
8.2 Periodical inspection ....................................................................................................... 273
8.3 Cooling fan...................................................................................................................... 275
8.4 Capacitor ........................................................................................................................ 276
8.5 Power cable .................................................................................................................... 278
9 Communication....................................................................................................................... 279
9.1 What this chapter contains .............................................................................................. 279
9.2 Modbus protocol introduction .......................................................................................... 279
9.3 Application ...................................................................................................................... 279
9.4 RTU command code and communication data................................................................. 285
9.5 Common communication faults ....................................................................................... 303
Appendix A Expansion cards .................................................................................................... 304
A.1 Model definition .............................................................................................................. 304
A.2 Dimensions and installation ............................................................................................ 311
A.3 Wiring............................................................................................................................. 314
A.4 IO expansion card——EC-IO501-00 ............................................................................... 314
A.5 Programmable expansion card——EC-PC502-00........................................................... 316
A.6 Communication card function description........................................................................ 319
A.7 PG expansion card function description .......................................................................... 328
Appendix B Technical data........................................................................................................ 344
B.1 What this chapter contains.............................................................................................. 344
B.2 Derated application......................................................................................................... 344
B.3 Grid specifications .......................................................................................................... 345
B.4 Motor connection data .................................................................................................... 345
B.5 Application standards...................................................................................................... 345
B.6 EMC regulations ............................................................................................................. 346
Appendix C Dimension drawings.............................................................................................. 348
C.1 What this chapter contains.............................................................................................. 348
C.2 Keypad structure ............................................................................................................ 348
C.3 VFD structure ................................................................................................................. 349
C.4 VFD structure ................................................................................................................. 349
Appendix D Optional peripheral accessories........................................................................... 356

GD350A series high-performance multifunction VFD
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D.1 What this chapter contains.............................................................................................. 356
D.2 Wiring of peripheral accessories ..................................................................................... 356
D.3 Power supply.................................................................................................................. 357
D.4 Cables............................................................................................................................ 358
D.5 Breaker and electromagnetic contactor........................................................................... 362
D.6 Reactors......................................................................................................................... 363
D.7 Filters ............................................................................................................................. 365
D.8 Braking system............................................................................................................... 368
Appendix E STO function description ...................................................................................... 372
E.1 STO function logic .......................................................................................................... 372
E.2 STO channel delay description ....................................................................................... 372
STO function installation checklist ......................................................................................... 373
Appendix F Further information................................................................................................ 374
F.1 Product and service queries ............................................................................................ 374
F.2 Feedback on INVT VFD manuals .................................................................................... 374
F.3 Documents on the Internet .............................................................................................. 374