TBnnn - Automation Direct GS20 Inverter Wiring & Parameters

Wiring Terminals:

Terminal

Meaning

Typical Wire Color

R/L1, S/L2, T/L3

Incoming 3-phase AC power

BLK or BLK/RED/WHT

U/T1, V/T2, W/T3

3-phase power out to motor

BLK or BLK/RED/WHT

B1, B2

Braking resistor

BLK or WHT

FWD

Run Forward

WHT

REV

Run Reverse

BLK

DI4

Reset (not default, must set P2.04 = 5)

GRN

DCM

Input Sequence Common

BLU

AI1

Analog frequency reference (0-10V)

BRN

ACM

Analog common

VIO plus WHT/BLK

AO1

Analog output

WHT/RED

R1C

Fault, normally-closed

ORG

DO1

Zero-speed (set P2.16 = 6)

WHT/BRN or TAN

R1 and DOC

DC common (0VDC)

YEL

+24V, STO1 and STO2

Safe Torque Off function

various



If you wish to use the Safe Torque Off (STO) function, as an alternative to interrupting the incoming line power during an emergency stop condition while maintaining a reliable drive inhibit, then wire from the +24V terminal, through two independent poles of a safety relay, back to STO1 and STO2.

Parameter Settings:

Parameter

Meaning

Value

P00.20

Frequency command source

2 = external analog input

P00.21

Operation command source

1 = external terminals

P00.22

Stop method

0 = decel ramp; 1 = free coast

P01.00

Maximum operation frequency

(as desired, e.g. 120 Hz)

P01.01

Motor base frequency

60 Hz (or from motor)

P01.02

Motor rated voltage

230 or 460 VAC (or from motor)

P01.10

Output frequency upper limit

599.0

P01.12

Acceleration time

3.0 - 5.0 seconds

P01.13

Deceleration time

3.0 - 5.0 seconds

P02.04

Terminal DI4 function

5 (fault reset)

P02.16

Terminal DO1 function

6 (zero speed)

P03.20

Analog Output

3 (output current)

(CNC11 and CNC12 only)

P05.01

Motor full-load current

(from motor)

P05.03

Motor rated speed

(from motor, e.g. 1720)

P06.01

Overvoltage Stall Prevention

0 (disable) if braking resistor is installed
380 or 760 VDC (enable) if no braking resistor installed

P06.44

STO Latch Selection

1 (no latch) if STO circuit is used



To change a parameter (for example, to set P02.04 = 5):

  1. Press MENU as needed to show the parameter screen (typically "H 0.00")
  2. Press ENTER to show the parameter group (e.g. "00")
  3. Press the Up Arrow as needed to select the desired group (e.g. twice for 02)
  4. Press ENTER to show the parameter number (e.g. "0200")
  5. Press the Up Arrow as needed to select the desired parameter (e.g. up four times for 0204)
  6. Press ENTER to display current value
  7. Press up and down arrows to change value (e.g. up until value shows "5")
  8. Press ENTER to accept changed value and go on to next parameter
  9. Press MENU as needed to return to main parameter screen (e.g. "H 0.00")


RFI Jumper

See page 2-16 of the GS20 Drive User Manual for important information regarding the drive's built-in RF filtering, and the need to remove the internal RFI jumper when connected to unbalanced power supplies (such as center-grounded delta power, or when using a phase converter).

TB_GS20.htm, v1.1 2023/11/19 MBL