Frequency Inverter ST600 Series High-Performance Multifunction VFD Installation Guide
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The VFD provides +10.5V power
1. Input range: AI1 voltage/current can choose 0–10/ 0–20mA; AI2: -10V–+10V voltage;
2. Input impedance: 20kΩ during voltage input; 250Ω during current input;
3. AI1 voltage or current input is set by P05.50;
4. Resolution ratio: When 10V corresponds to 50Hz, the min. resolution ratio is 5mV;
5. 25°C, When input above 5V or 10mA, the error is ±0.5%
Reference ground of +10.5V
1. Output range: 0–10V voltage or 0–20mA current
2. Voltage or current output is set by toggle switch SW2;
3. 25°C, when input above 5V or 10mA, the error is ±0.5%.
RO1 relay output; RO1A is NO, RO1B is NC, RO1C is common port
Contact capacity: 3A/AC250V, 1A/DC30V
RO2 relay output; RO2A is NO, RO2B is NC, RO2C is common port
Contact capacity: 3A/AC250V, 1A/DC30V
1. Switch capacity: 50mA/30V;
2. Range of output frequency: 0–50kHz
3. Duty ratio: 50%
Common port of open collector output; short connected to COM by default
1. Switch capacity: 50mA/30V;
2. Range of output frequency: 0–1kHz
485 communication port, 485 differential signal port and standard 485 communication
interface should use shielded twisted pair; the 120Ω terminal matching resistor of 485
communication is connected by toggle switch SW3.
External power input terminal for digital input circuits
Voltage range: 12–30V
The VFD provides user power; the max. output current is 200mA
1. Internal impedance: 3.3kΩ
2. Accept 12–30V voltage input
3. This terminal is bi-directional input terminal and supports NPN/PNP
connection modes
4. Max. input frequency: 1kHz
5. All are programmable digital input terminals, users can set the
terminal function via function codes
Channels for both high frequency pulse input and S1–S4 function inputs
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