Connection Equipment
This diagram shows a standard wiring of the power circuit.
This diagram shows an example of connection to peripheral devices
 Terminal Symbol | FunctionGrounding terminal for inverter case. | Applicable Frame SizeAll frame sizes |
|---|---|---|
| [PE] | Grounding terminal. | Frame size A4, A5, and A6 |
| [R/L1] [S/L2] [T/L3] | Connected to an AC power supply.
240 V class: Three-phase 200 - 240 V-50/60 Hz 480 V class: VFAS3-4004PC to 4132KPC： Three-phase 380 - 480 V-50/60 Hz VFAS3-4160KPC to 4280KPC： Three-phase 380 - 440 V- 50 Hz Three-phase 380 - 480 V- 60 Hz | All frame sizes |
| [U/T1] [V/T2] [W/T3] | Connected to a three-phase motor. | All frame sizes |
| [PA/+] [PB] | Connected to a braking resistor. Change the parameters <F304: Dynamic braking, OLr trip>, <F308: Braking resistance>, and <F309: Braking resistor capacity> if necessary. | Frame size A1, A2, A3, A4, A5, and A7 |
| [BU+] [BU-] | Inside the inverter. Connected to a braking unit (optional). Braking resistor (optional) is connected to a braking unit terminals [PA] and [PB]. | Frame size A8 |
| [PA/+] [PC/-] | A DC power can be input.
For models of VFAS3-2110P to 2550P and VFAS3-4220PC to 4280KPC, a rush current suppression circuit (optional) is required. Connected to a braking unit (Optional) for frame size A6. | All frame sizes |
| [PA/+] [P0] | Be sure to connect the attached DC reactor. | Frame sizes A7 and A8 |
This control terminal block is common to all models.
| Terminal Symbol | Input/Output | Function | Electrical Specifications | F | Input | Multifunction programmable digital input. In the default setting, forward run is performed with ON and deceleration stop with OFF. | Digital input. • 24 Vdc-5 mA or less Compliant with IEC61131-2 logic type 1 • Sink logic: ON < 10 V, 16 V < OFF • Source logic: OFF < 5 V, 11 V < ON Sink logic and source logic can be switched with the slide switch [SW1] |
|---|---|---|---|
| R | Input | Multifunction programmable digital input. In the default setting, reverse run is performed with ON and deceleration stop with OFF. | |
| Res | Input | Multifunction programmable digital input. In the default setting, this inverter protective function is reset by ON→OFF. It has no effect when the inverter is in a normal condition. | |
| S1 | Input | Multifunction programmable digital input. In the default setting, preset speed operation is performed with ON | |
| S2 | Input | Multifunction programmable digital input. In the default setting, preset speed operation is performed with ON | |
| S3 | Input | Multifunction programmable digital input. In the default setting, preset speed operation is performed with ON | |
| S4 | Input | Multifunction programmable digital input. In the default setting, preset speed operation is performed with ON With , digital input, pulse train input, and PG input can be switched. | Digital input. • 24 Vdc-5 mA or less Compliant with IEC61131-2 logic type 1 • Sink logic: ON < 10 V, 16 V < OFF • Source logic: OFF < 5 V, 11 V < ON Sink logic and source logic can be switched with the slide switch [SW1] Pulse train input • Up to 30 kpps (duty 50%) |
| S5 | Input | Multifunction programmable digital input. In the default setting, preset speed operation is performed with ON. With , digital input, pulse train input, and PG input can be switched. | |
| CC | Common to input/output | An equipotential terminal of the control circuit. It is allocated in three positions. | |
| PP | Output | 10 Vdc power output for analog input setting. | 10 Vdc
(allowable load current: 10 mAdc) |
| FP | Output | Multifunction programmable digital/pulse train output. With , digital output and pulse train output can be switched. | Digital output
• 24 Vdc-50 mA Pulse train output • Up to 30 kpps (duty 50% |
| RR | Input | Analog input with 0 - 10 Vdc. It can be switched to PTC input, etc. with <F108: Terminal RR input select>. | 0 - 10 Vdc
(internal impedance: 31.5 kΩ) |
| RX | Input | Analog input with -10 to +10 Vdc. With <F107: Terminal RX input voltage select>, it can be swtiched to 0 - 10 Vdc. | -10 to +10 Vdc
(internal impedance: 31.5 kΩ) |
| II | Input | Analog current input with 0 – 20 mAdc. The current can be changed to 4 - 20 mA, etc. with setting of the parameter. | 0 - 20 mAdc
(internal impedance: 250 Ω) |
| FM | Output | Multifunction programmable analog output. 0 - 10 Vdc output with default setting. With <F681: Terminal FM switching>, meter option (0 - 1 mA), current (0 – 20 mA) output, and voltage (0 - 10 V) output can be switched. | 0 - 10 Vdc
(allowable load resistance: 1 kΩ or more) 4 - 20 mAdc (0 - 20 mAdc) (allowable load resistance: 500 kΩ or less) |
| AM | Output | Multifunction programmable analog output. 0 - 20 mAdc output with default setting. With <F686: Terminal AM switching>, meter option (0 - 1 mA), current (0 - 20 mA) output, and voltage (0 - 10 V) output can be switched. | |
| PLC | Output | When the slide switch [SW1] is set to the sink side or source side, it can be used as 24 Vdc power output. |
24 Vdc-200 mA (200 mA in total with P24) Compliant with IEC61131-2 |
| Input | When the slide switch [SW1] is set to the PLC side, it can be used as a common terminal for digital input terminal. | ||
| P24 | Output | 24 Vdc power output. | 24 Vdc-200 mA (200 mA in total with PLC) Compliant with IEC61131-2 |
| +SU | Input |
DC power input to operate the control circuit. Connect a control power supply option or 24 Vdc power supply between [+SU] and [CC]. | 24 Vdc- current 1A or more |
| STOA | Input | At the time of shipping, the terminals [STOA]-[STOB]-[PLC] are shorted by the shorting bar. This is a terminal with STO function that complies with the safety standard IEC61800-5-2. For details, refer to Safety Function Manual. This terminal is not programmable digital input. | Refer to Safety Function Manual. Compliant with IEC61131-2 logic type 1 • Activate < 5 V, 11 V < Deactivate Not coast stop |
| STOB | Input | ||
| FLA | Output | Multifunction programmable relay contact output. Operation of the protection function of the inverter is detected in the default setting. The contact across [FLA]-[FLC] is closed and [FLB]-[FLC] is opened during protection function operation. | Maximum contact capacity • 250 Vac-2 A (cosφ=1) • 30 Vdc-2 A (at resistive load) • 250 Vac-1 A (cosφ=0.4) • 30 Vdc-1A (L/R=7 ms) Minimum contact capacity • 24 Vdc-5 mA Life • 100000 times |
| FLB | Output | ||
| FLC | Output | ||
| R1A | Output | Multifunction programmable relay contact output. A low-speed signal is output in the default setting | |
| R1C | Output | ||
| R2A | Output | Multifunction programmable relay contact output. It is not assigned in the default setting. The function can be set with . | |
| R2C | Output | ||