View source for AutomationDirect GS2 Series VFDs

== Overview ==

Chinese variable frequency drives (VFDs). They feature Modbus/RS-485 support.

== Model Numbers ==

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=11 Page 11] (1-3 in the PDF) shows the model number scheme

== Wiring Diagram ==

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=24 Page 24] (2-8 in the PDF) shows the power input/output terminal layout
* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=26 Page 26] (2-10 in the PDF) shows the control terminal layout
* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=27 Page 27] (2-11 in the PDF) shows an overview of the wiring
* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=134 Page 134] (5-30 in the PDF) shows the RS-232/RS-485 wiring

NOTE: the manual lists the RS-485 wiring SG+ and SG- swapped! SG+ is really B- and SG- is really A+, this is the correct RJ12 (6P4C) pinout:

{| class="wikitable"
! RJ12 Pin
! Function
|-
| 2
| GND
|-
| 3
| A+ (manual says SG-!)
|-
| 4
| B- (manual says SG+!)
|-
| 5
| +5V
|}

== Dimensions ==

== Software ==

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=168 Page 168] (A-22 in the PDF) mentions the GSoft software

[https://www.automationdirect.com/support/software-downloads?itemcode=GSoft Software & Firmware Downloads]

{| class="wikitable"
! Filename
! Size
! MD5
! SHA1
! SHA256
|-
| [https://cdn.automationdirect.com/static/software/gsoftInstall_v4_0_7_db7_0_9.zip gsoftInstall_v4_0_7_db7_0_9.zip]
| 22,525,331 bytes
| 829949476babd049043abc22f35bf305
| e59f849056f589aff632d6f6208c7e7b4f37bcc0
| 9daf832d4a91dcaed3a684fd9a0c3c442d9d8c1a58ef322db8072594427b9835
|}

== Parameters ==

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=44 Page 44] (4-2 in the PDF) lists the parameters
* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=53 Page 53] (4-11 in the PDF) gives detailed parameter descriptions

== Alarm Codes ==

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=143 Page 143] (6-3 in the PDF) lists the LCD fault codes

== Modbus Control ==

=== VFD parameters ===

{| class="wikitable"
! Modbus Address
! Parameter No.
! Default Value
! Required Value
! Description
|-
| 0x0300
| P03.00
| 00: Operation determined by digital keypad
| 04: Operation determined by RS-485 interface, keypad STOP is disabled
| Source of Operation Command
|-
| 0x0400
| P04.00
| 00: Frequency determined by keypad potentiometer
| 05: Frequency determined by RS-232C/RS-485 communication interface
| Source of Frequency Command
|-
| 0x0900
| P09.00
| 1
| 1
| Slave Address
|-
| 0x0901
| P09.01
| 01: 9,600 baud
| 01: 9,600 baud
| Baudrate
|-
| 0x0902
| P09.02
| 00: MODBUS ASCII, 7N2
| 04: MODBUS RTU, 8E1
| Communication Protocol
|-
| 0x0903
| P09.03
| 00: display fault and continue
| 02: display fault and coast to stop
| Transmission Fault Treatment
|-
| 0x0904
| P09.04
| 00: disable
| 01: enable
| Time Out Detection
|-
| 0x0905
| P09.05
| 0.5 seconds
| 2.0 seconds
| Time Out Duration
|}

=== Modbus registers ===

* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=108 Page 108] (5-4 in the PDF) lists the parameter registers
* [https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf#page=113 Page 113] (5-9 in the PDF) lists the status registers

Command registers:

{| class="wikitable"
! Parameter No.
! Register No. (hex)
! Register No. (decimal)
! Values
! Description
|-
| P09.26
| 0x091A
| 2330
| 0 - 4000 (Hz * 10)
| Serial Comm Speed Reference
|-
| P09.27
| 0x091B
| 2331
| 00: Stop<br/>01: Run
| Serial Comm RUN Command
|-
| P09.28
| 0x091C
| 2332
| 00: Forward<br/>01: Reverse
| Serial Comm Direction Command
|-
| P09.29
| 0x091D
| 2333
| 00: No fault<br/>01: External fault
| Serial Comm External Fault
|-
| P09.30
| 0x091E
| 2334
| 00: No action<br/>01: Fault reset
| Serial Comm Fault Reset
|-
| P09.31
| 0x091F
| 2335
| 00: Stop<br/>01: Jog
| Serial Comm JOG Command
|}

Status registers:

{| class="wikitable"
! Register No. (hex)
! Register No. (decimal)
! Description
|-
| 0x2100
| 8448
| Status Monitor 1
|-
| 0x2101
| 8449
| Status Monitor 2
|-
| 0x2102
| 8450
| Frequency Command F
|-
| 0x2103
| 8451
| Output Frequency H
|-
| 0x2104
| 8452
| Output Current A
|-
| 0x2105
| 8453
| DC Bus Voltage d
|-
| 0x2106
| 8454
| Output Voltage U
|-
| 0x2107
| 8455
| Motor RPM
|-
| 0x2108
| 8456
| Scale Frequency (Low Word)
|-
| 0x2109
| 8457
| Scale Frequency (High Word)
|-
| 0x210A
| 8458
| Power Factor Angle
|-
| 0x210B
| 8459
| % Load
|-
| 0x2110
| 8464
| Firmware Version
|}

== Online Resources ==

https://cdn.automationdirect.com/static/manuals/gs2m/gs2m.pdf

https://cdn.automationdirect.com/static/specs/oldspec/gs2drive_01_27_22.pdf