Sourcetronic ST600 - Page 6

Quick Start Guide for ST600 Series Frequency Inverters Terminals
5
Table 2-1 VFD Terminal Description
Terminal
Description
Main Circuit Terminals
R, S, T
3PH AC input terminals, connected to the grid
U, V, W
3PH AC output terminals, usually connected to the motor
P1
 P1 and (+) connect to external DC reactor terminals.
 (+) and (-) connect to external braking unit terminals or shared DC bus terminals.
 PB and (+) connect to external braking resistor terminals.
(+)
(-)
PB
PE terminal. The PE terminals of each machine must be grounded reliably.
Control Circuit Terminals
+10V
Locally provided +10.5V power supply
AI1
Analog input. Range: 0–10V/0–20mA. Function code P05.50 specifies whether to use voltage or
current input.
AI2
Analog input. Range: -10V – +10V
GND
Reference ground of +10.5V
AO1
Analog output. Range: 0–10V/0–20mA. SW2 is used to select voltage or current output.
RO1A
Relay output. RO1A: NO; RO1B: NC; RO1C: common
Contact capacity: 3A/AC 250V, 1A/DC 30V
RO1B
RO1C
RO2A
Relay output. RO2A: NO; RO2B: NC; RO2C: common
Contact capacity: 3A/AC 250V, 1A/DC 30V
RO2B
RO2C
HDO
Switch capacity: 50mA/30V. Output frequency range: 0–50kHz. Duty ratio: 50%
COM
Reference ground of +24V
CME
Common terminal of open collector output; short connected to COM by default
Y1
Switch capacity: 50mA/30V; Output frequency range: 0–1kHz
485+
RS485 differential signal communication port. The standard communication interface should use a
shielded twisted pair cable. Specify whether the 120 Ω matching resistor of the RS485 communi-
cation should be connected via the DIP switch or the jumper.
485-
PE
Grounding terminal
PW
External power input terminal for digital input circuits. In NPN mode, short-circuit PW and +24V. In
PNP mode, short-circuit PW and COM.
+24V
User the power supply provided by the VFD. Max. output current: 200mA