4.2 Terminal Application Wiring Diagram

Wiring Diagram for 0.75~37KW Variable Frequency Drives

Wiring Diagram for External Potentiometer Connection of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External Potentiometer Connection of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Wiring Diagram for External Button Start/Stop Connection of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External Button Start/Stop Connection of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Explanation: Press the green button to start the VFD; press the red stop button to stop the VFD;
VFD parameter settings: P0-02=1; P4-02=3; P4-11=2

Wiring Diagram for External Three-gear Switch Forward/Reverse Connection of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External Three-gear Switch Forward/Reverse Connection of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Explanation: Three-gear two normally open knobs, turned to the left for motor forward, turned to the middle for motor stop, turned to the right for motor reverse.
VFD parameter settings: P0-02=1

Wiring Diagram for External On/Off Signal Connection of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External On/Off Signal Connection of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Explanation: Connect X1 terminal and COM terminal to start the VFD; Disconnect X1 terminal and COM terminal to stop the VFD; Direct power-on, power-off, directly short COM and X1.
VFD parameter settings: P0-02=1

Wiring Diagram for External Remote Pressure Transmitter Connection - Simple Constant Pressure Water Supply of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External Remote Pressure Transmitter Connection - Simple Constant Pressure Water Supply of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Explanation: The VFD serves as the core of the water supply system, able to monitor water pressure changes in real time and intelligently adjust the pump speed according to demand. When multiple users are using the water source simultaneously, the VFD will automatically increase the pump’s output power to maintain stable water pressure; while using smaller water flow rates, the VFD will decrease the pump’s output power to avoid excessive water pressure.
VFD parameter settings: P0-29=00001, b0-00=Pressure transmitter range, b0-01=Set pressure, b0-02=Sleep pressure, b0-03=Wake-up pressure;
Example: If the pressure transmitter range is 1MPA, b0-00=10, if the range is 1.6MPA, b0-00=16.
The upper line displays the set pressure, and the lower line displays the pressure transmitter feedback pressure. Adjust the set pressure using the 🔼/🔽 keys on the panel, with pressure displayed in kilograms. The upper line can switch between displaying bus voltage, current, frequency, set pressure, and feedback pressure using the ▶️ key.
🌟Note 1: After setting P0-29=00001, the default is external terminal operation. To start from the panel, set P0-02=0.
🌟Note 2: Settings for b0-02 and b0-03 are relative to b0-01 as a percentage.

Wiring Diagram for External Pressure Sensor Connection - Simple Constant Pressure Water Supply of SKF8000 Series Vector Variable Frequency Drives — Wiring Diagram for External Pressure Sensor Connection - Simple Constant Pressure Water Supply of SKF8000 Series 0.75~37KW Vector Variable Frequency Drives

Explanation: The VFD serves as the core of the constant pressure water supply system, able to monitor water pressure changes in real time and intelligently adjust the pump speed according to demand. When multiple users are using the water source simultaneously, the VFD will automatically increase the pump’s output power to maintain stable water pressure; while using smaller water flow rates, the VFD will decrease the pump’s output power to avoid excessive water pressure.
VFD parameter settings: P0-29=00001, b0-00=Pressure transmitter range, b0-01=Set pressure, b0-02=Sleep pressure, b0-03=Wake-up pressure;
Example: If the pressure transmitter range is 1MPA, b0-00=10, if the range is 1.6MPA, b0-00=16.
The upper line displays the set pressure, and the lower line displays the pressure transmitter feedback pressure. Adjust the set pressure using the 🔼/🔽 keys on the panel, with pressure displayed in kilograms. The upper line can switch between displaying bus voltage, current, frequency, set pressure, and feedback pressure using the ▶️ key.
🌟Note 1: After setting P0-29=00001, the default is external terminal operation. To start from the panel, set P0-02=0.
🌟Note 2: Settings for b0-02 and b0-03 are relative to b0-01 as a percentage.

45~720KW Variable Frequency Drive Wiring Diagram

External Potentiometer Wiring Diagram for SKF8000 Series Vector Variable Frequency Drive — External Potentiometer Wiring Diagram for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Start-Stop Button Wiring Diagram for SKF8000 Series Vector Variable Frequency Drive — Start-Stop Button Wiring Diagram for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Explanation: Pressing the green button starts the VFD; pressing the red stop button stops the VFD.
VFD Parameter Settings: P0-02=1; P4-02=3; P4-11=2

Forward-Reverse Switch Wiring Diagram for SKF8000 Series Vector Variable Frequency Drive — Forward-Reverse Switch Wiring Diagram for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Explanation: Three-position toggle switch: Left position for motor forward, middle position for motor stop, right position for motor reverse.
VFD Parameter Settings: P0-02=1

On-Off Signal Wiring Diagram for SKF8000 Series Vector Variable Frequency Drive — On-Off Signal Wiring Diagram for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Explanation: Connecting X1 terminal to COM terminal starts the VFD; disconnecting X1 terminal from COM terminal stops the VFD; direct power-on starts, power-off stops, directly short COM and X1 terminals.
VFD Parameter Settings: P0-02=1

Simple Constant Pressure Water Supply Wiring Diagram with External Pressure Transmitter for SKF8000 Series Vector Variable Frequency Drive — Simple Constant Pressure Water Supply Wiring Diagram with External Pressure Transmitter for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Explanation: The VFD serves as the core of the constant pressure water supply system, capable of monitoring water pressure changes in real-time and intelligently adjusting the pump speed according to demand. When multiple users are simultaneously using the water source, the VFD automatically increases the pump output power to maintain stable water pressure; whereas when a smaller water flow rate is used, the VFD reduces the pump output power to avoid excessive water pressure.
VFD Parameter Settings: P0-29=00001, b0-00=Pressure transmitter range, b0-01=Set pressure, b0-02=Sleep pressure, b0-03=Wake-up pressure;
Example: If the pressure transmitter range is 1MPA, b0-00=10, if the range is 1.6MPA, b0-00=16.
The upper line displays the set pressure, and the lower line displays the pressure feedback from the pressure transmitter. Adjusting the set pressure is done through the panel’s increase🔼/decrease🔽 keys, with the pressure displayed in kilograms. The upper line can be toggled to display bus voltage, current, frequency, set pressure, and feedback pressure using the ▶️ key.
🌟 Note 1: After setting P0-29=00001, external terminal operation is the default; to enable panel startup, set P0-02=0.
🌟 Note 2: Settings for b0-02 and b0-03 are percentages relative to b0-01.

Simple Constant Pressure Water Supply Wiring Diagram with External Pressure Sensor for SKF8000 Series Vector Variable Frequency Drive — Simple Constant Pressure Water Supply Wiring Diagram with External Pressure Sensor for SKF8000 Series 45~720KW Vector Variable Frequency Drive

Explanation: The VFD serves as the core of the water supply system, capable of monitoring water pressure changes in real-time and intelligently adjusting the pump speed according to demand. When multiple users are simultaneously using the water source, the VFD automatically increases the pump output power to maintain stable water pressure; whereas when a smaller water flow rate is used, the VFD reduces the pump output power to avoid excessive water pressure.
VFD Parameter Settings: P0-29=00001, b0-00=Pressure sensor range, b0-01=Set pressure, b0-02=Sleep pressure, b0-03=Wake-up pressure;
Example: If the pressure sensor range is 1MPA, b0-00=10, if the range is 1.6MPA, b0-00=16.
The upper line displays the set pressure, and the lower line displays the pressure feedback from the pressure sensor. Adjusting the set pressure is done through the panel’s increase🔼/decrease🔽 keys, with the pressure displayed in kilograms. The upper line can be toggled to display bus voltage, current, frequency, set pressure, and feedback pressure using the ▶️ key.
🌟 Note 1: After setting P0-29=00001, external terminal operation is the default; to enable panel startup, set P0-02=0.
🌟 Note 2: Settings for b0-02 and b0-03 are percentages relative to b0-01.

One-to-One Backup Wiring Diagram for SKF8000 Series High-Performance Universal Vector Variable Frequency Drive

One Frequency Conversion with Two Utility Frequency Wiring Diagram for SKF8000 Series High-Performance Universal Vector Variable Frequency Drive

Function Description of Multi-speed Command for SKF8000 Series General Purpose Variable Frequency Drive

There are 4 multi-speed command terminals, which can be combined into 16 states, corresponding to 16 instruction set values. Specifically, as shown in the table below:

K4	K3	K2	K1	Instruction Set	Corresponding Parameter
OFF	OFF	OFF	OFF	Multi-speed 0	PC-00
OFF	OFF	OFF	ON	Multi-speed 1	PC-01
OFF	OFF	ON	OFF	Multi-speed 2	PC-02
OFF	OFF	ON	ON	Multi-speed 3	PC-03
OFF	ON	OFF	OFF	Multi-speed 4	PC-04
OFF	ON	OFF	ON	Multi-speed 5	PC-05
OFF	ON	OFF	ON	Multi-speed 6	PC-06
OFF	ON	ON	ON	Multi-speed 7	PC-07
ON	OFF	OFF	OFF	Multi-speed 8	PC-08
ON	OFF	OFF	ON	Multi-speed 9	PC-09
ON	OFF	ON	OFF	Multi-speed 10	PC-10
ON	OFF	ON	ON	Multi-speed 11	PC-11
ON	ON	OFF	OFF	Multi-speed 12	PC-12
ON	ON	OFF	ON	Multi-speed 13	PC-13
ON	ON	ON	OFF	Multi-speed 14	PC-14
ON	ON	ON	ON	Multi-speed 15	PC-15

When the frequency source is set to multi-speed, the function codes PC-00 to PC-15 correspond to 100%, with PC-10 (maximum frequency) corresponding to 100%.

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4.1 Display Interface Introduction