Important Note
Toshiba VF-PS1 series frequency converters are factory-programmed for positive logic operation. This means that the COMMON terminal P24 is used for all STOP, START, RESET, and MULTI-SPEED operations.
This Quick Programming Guide is designed for working with the converter in positive logic. If you need to work in negative logic, please contact Toshiba. Incorrect terminal usage can damage the converter. Proceed with caution.
Default Terminal Programming
| Negative Logic | Function | Positive Logic (Standard for Europe) | Function |
|---|---|---|---|
| F | Forward Run | F | Forward Run |
| R | Reverse Run | R | Reverse Run |
| S1 | Multi-speed 1 | S1 | Multi-speed 1 |
| S2 | Multi-speed 2 | S2 | Multi-speed 2 |
| S3 | Multi-speed 3 | S3 | Multi-speed 3 |
| RES | Reset | RES | Reset |
| CC | Common for negative logic | P24 | Common for positive logic |
1.1 Positive Logic Check
The drives are factory-configured for positive logic. It is advisable to verify this configuration to prevent damage from incorrect wiring. Check that micro-switch SW1 is in the "SOURCE" position.
A diagram illustrates the terminal block with various connections and switches. Key elements include: Input terminals (R/L1, S/L2, T/L3), output terminals (U/T1, V/T2, W/T3) for motor connection, control terminals (F, R, RES, S1, S2, S3, CC, P24, PWR, OUT1, OUT2, FLC, RR, LO, NO), and analog input terminals (FM, AM, CCA, RX, VI/II, PP). Micro-switches SW1 (INT/PLC, SOURCE/SINK) and SW2, SW3, SW4 are shown. Analog inputs are for 0-10V, 0-20mA signals, and external potentiometers.
2. Preparation and Wiring of the Converter
Connect the power supply cables to the drive and the motor output cables to the following terminals:
- Power Supply: R/L1, S/L2, T/L3 (for three-phase converter input)
- Motor Output: U/T1, V/T2, W/T3 (for motor output)
Power Supply Classes:
- 200V Class: 18.5-45kW Three-phase 200-240V 50/60Hz
- 400V Class: 18.5-75kW Three-phase 380-480V 50/60Hz
A wiring diagram shows the main circuit components including MCCB (Molded Case Circuit Breaker), RFI Filter, Main Circuit, and the IM (Induction Motor). Control circuit connections are detailed, showing default values for Forward Run, Reverse Run, Reset, Preset Speed 1, 2, 3. Analog signal connections for voltage (-10V to +10V, 0-10V) and current (4-20mA) are also depicted, along with connections for an external potentiometer, ammeter, and voltmeter.
3. Programming the Converter for Operation from the Built-in Control Panel
The drive is factory-programmed to operate from external control terminals. To operate from the converter's front control panel, follow the steps below. If you prefer to work from terminals, leave it as factory default.
3.1. Start / Stop from Control Panel
Follow these key presses and observe the messages:
- MODE key → Message: AUH
- ▲ (up) key four times → Message: F00d
- ENTER key → Message: 0
- ▲ (up) key once → Message: 1
- ENTER key → Message: C00d
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
After these steps, the RUN light will illuminate, indicating that the drive will now respond to START / STOP commands from the panel.
3.2. Modifying the Operating Frequency with External Signals (0-10Vdc, 4-20 mA, UP&DOWN, etc.)
Follow these key presses and observe the messages:
- MODE key → Message: AUH
- ▲ (up) key five times → Message: F00d
- ENTER key → Message: 0
- ▼ (down) key to desired value (1 to 13, see Table 1)
- ENTER key → Message: F00d
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
Table 1: Reference Frequency Value (FMOD)
This table defines how the reference frequency is set. Examples include:
- FMOD 1: VI/II (Voltage / Current Input)
- FMOD 2: RR / S4 (External Potentiometer or Analog Input)
- FMOD 3: RX (Analog Input +/- 10 VDC)
- FMOD 4: Input from Control Panel (including optional LED/LCD panel)
- FMOD 5: RS-485 2-wire communication port and control panel (FA01)
- FMOD 10: UP/DOWN Frequency
3.3. Programming the Signal Type (4-20 mA)
The converter is factory-prepared for 0-20 mA signals, but 4-20 mA is more common. To use 4-20 mA, modify function F201 (analog signal scale definition). Setting it to 20 adjusts the scale to 4-20 mA (20% of 0-20mA corresponds to 4mA).
Follow these key presses and observe the messages:
- MODE key → Message: AUH
- ▼ (down) key to F2--
- ENTER key → Message: F200
- ▲ (up) key to F201
- ENTER key → Message: 0
- ▲ (up) key repeatedly to 20
- ENTER key → Message: F201
- MODE key → Message: F2--
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
Diagrams illustrate terminal connections for external signals: Forward/Stop (F, P24), Reverse/Stop (R, P24), 0-10V input (VI/II, CCA), 4-20mA input (VI/II, CCA), 0-10V input (RR/S4, CCA), external potentiometer (PP, RR/S4, CCA), and +/-10V input (RX, CCA).
4. PID Programming
Some applications require PID programming to maintain constant pressure, flow, or temperature using an analog reference signal (0-10 volts or 4-20 mA).
Example of PID Programming to Maintain Constant Pressure
Follow these key presses and observe the messages:
- MODE key → Message: AUH (First parameter)
- ▲ (up) key to parameter F00d
- ENTER key → Message: 2
- ▲ (up) key to value 4
- ENTER key → Message: F00d
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
This first step prepares the drive to accept the desired pressure setpoint via the panel's ▲ or ▼ keys.
4.1. PID Activation
Follow these key presses and observe the messages:
- MODE key → Message: AUH
- ▲ (up) key to parameter F3--
- ENTER key → Message: F303
- ▲ (up) key to value F359
- ENTER key → Message: 0
- ▲ (up) key to value 1
- ENTER key → Message: F359
- ▲ (up) key to value F360
- ENTER key → Message: 0
- ▲ (up) key to value (1 for 4-20 mA signal, 2 for 0-10 VDC signal)
- ENTER key → Message: F360
- ▲ (up) key to value F362
- ENTER key → Message: 0.10
- ▲ (up) key to value 1.00
- ▲ (up) key to value F363
- ENTER key → Message: 0.10
- ▲ (up) key to value 1.50
- ENTER key → Message: F363
- MODE key → Message: F3--
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
This second step activates PID in F359 and adjusts reaction times in F362 and F363. Higher values for F362 and F363 result in faster PID response. For this application, it is advisable to lower the ACC and dEC parameters (acceleration and deceleration times).
4.2. Adjusting the Desired Pressure
The pressure setpoint is assigned using the ▲ or ▼ keys on the control panel, calculated as follows:
Formula: Hz ÷ Ft × Bar
- Hz: Maximum operating frequency of the converter.
- Ft: Full scale of the transducer in bar.
- Bar: Desired pressure to maintain.
Example: Maintain 5 bar with a 10 bar full-scale transducer.
(50 ÷ 10) × 5 = 25
Search for the value 25 using the ▲ or ▼ keys, then press ENTER.
5. Parameter Programming
You may need to program parameters for correct converter operation. The tables below show all parameters, their programmable values, and default values. Select the parameters to modify and proceed as indicated.
Follow these key presses and observe the messages:
- MODE key → Message: AUH (First parameter)
- ▲ or ▼ key to desired parameter → Message: XXX
- ENTER key → Message: Current value
- ▲ or ▼ key to desired value → Message: New value
- ENTER key → Message: XXX
- MODE key → Message: Fr-F
- MODE key → Message: 0.0
5.1. Parameter Tables Overview
The following sections provide an overview of the extensive parameter tables for the Toshiba VF-PS1 frequency converter. These tables detail various functions, adjustment ranges, minimum adjustment units, and default settings for optimal operation and customization. Due to the large number of parameters, only a summary of each section and representative examples are provided.
Basic Parameters
This section covers fundamental operational parameters. Columns typically include: Parameter No., Name, Function, Adjustment Range, Minimum Adjustment Unit (Panel/Communication), and Default Value.
- Example:
Rul (0000): Acceleration / Deceleration Automatic. Range: 0 (Disabled), 1 (Automatic Adjustment), 2 (Automatic Adjustment during Acceleration). Default: 0. - Example:
Flod (0004): Frequency Adjustment Mode 1 Selection. Range: 1 (VI/II input), 2 (RR/S4 external potentiometer), ..., 13 (Binary/BCD code input). Default: 2. - Example:
ACC (0009): Acceleration Time 1. Range: 0.1~6000 sec. Default: *1 (refer to full manual for specific value).
Extended Parameters (Frequency Signal)
This section details parameters related to frequency signal adjustments. Columns are similar to Basic Parameters.
- Example:
F100 (0100): Output Frequency of Low Speed Signal. Range: 0.0-UL Hz. Default: 0.0.
Input Signal Selection
Parameters for configuring how input signals are prioritized and interpreted.
- Example:
F105 (0105): Priority when Forward/Reverse Run Commands are Introduced Simultaneously. Range: 0 (Reverse Run), 1 (Stop). Default: 1.
Terminal Function Selection
This extensive section defines the functions assigned to various input and output terminals. Each terminal can be configured for a wide range of operations.
- Example (Input Terminal):
F111 (0111): Function Selection 1 of Input Terminal (F). Range: 0~135. Default: 2. - Example (Output Terminal):
F130 (0130): Function Selection 1 of Output Terminal (OUT1). Range: 0~255. Default: 4.
Terminal Response Time
Parameters related to the response times of terminal operations.
- Example:
F168 (0168): Function Selection of Output Terminal 10 (R3). Range: 0~255. Default: 254.
V/F Adjustment Points
This section allows for detailed adjustment of the Voltage/Frequency (V/F) curve at multiple points to optimize motor performance.
- Example:
F190 (0190): V/f 5-point Adjustment VF1 Frequency. Range: 0.0~FH Hz. Default: 0.0.
Speed / Torque Reference / Inclination Adjustment
Parameters for controlling speed, torque, and signal inclination.
- Example:
F200 (0200): Frequency Priority Selection. Range: 0 (Flod/F207 terminal switching), 1 (Flod/F207 frequency switching). Default: 0. - Example:
F209 (0209): Analog Input Filter. Range: 0 (No filter), 1 (Approx. 10ms filter), ..., 4 (Approx. 60ms filter). Default: 0.
Frequency Control
Parameters related to various aspects of frequency control, including start/stop frequencies and dead bands.
- Example:
F240 (0240): Start Frequency Adjustment. Range: 0.0~10.0Hz. Default: 0.1.
DC Braking
Settings for direct current braking, including intensity and duration.
- Example:
F251 (0251): DC Braking Intensity. Range: 0~100%. Default: 50.
JOG Positioning
Parameters for JOG (inching) operation, including frequency and stop mode.
- Example:
F260 (0260): JOG Run Frequency. Range: F240~20.0Hz. Default: 5.0.
Jump Frequencies
Settings for defining frequencies that the converter should avoid to prevent resonance.
- Example:
F270 (0270): Jump Frequency 1. Range: 0.0~FH Hz. Default: 0.0.
Preset Speeds (Multi-speeds)
Configuration for multiple pre-defined operating speeds.
- Example:
F287 (0287): Multi-speed 8. Range: LL~UL Hz. Default: 0.0.
Improvement Parameters
These parameters offer advanced control for various aspects of converter performance, such as carrier frequency, auto-restart, regenerative power control, and dynamic braking.
- Example:
F301 (0301): Auto-restart Selection. Range: 0 (Disabled), 1 (Auto-restart), 2 (ST ON/OFF switching), 3 (1+2), 4 (Start). Default: 0. - Example:
F305 (0305): Overvoltage Limit Operation. Range: 0 (Disabled), 1 (Enabled), 2 (Enabled, Fast Deceleration), 3 (Enabled, Dynamic Deceleration). Default: 2.
PID Control
Detailed parameters for PID (Proportional-Integral-Derivative) control, including commutation, feedback signal selection, and gain adjustments.
- Example:
F359 (0359): PID Control Commutation. Range: 0 (No PID control), 1 (PID process control), 2 (PID speed control). Default: 0. - Example:
F362 (0362): Proportional Gain (P). Range: 0.01~100.0. Default: 0.10.
Speed Feedback / Position Control
Parameters for managing speed feedback and position control, including pulse numbers and phase selection.
- Example:
F375 (0375): Input Pulse Number (PG). Range: 12~9999. Default: 500.
Motor Constant
Parameters for motor auto-tuning and defining motor characteristics like capacity, current, and revolutions.
- Example:
F400 (0400): Auto-tuning 1. Range: 0 (No auto-tuning), 1 (Motor constant initialization), 2 (Continuous auto-tuning), 3 (Auto-tuning on input terminal signal), 4 (Automatic motor constant calculation). Default: 0.
Torque Limit
Settings for limiting torque during operation and regenerative braking.
- Example:
F440 (0440): Torque Limit 1 for Operating Power. Range: 1 (VI/II input), 2 (RR/S4 input), 3 (RX input), 4 (F441). Default: 4.
Acceleration / Deceleration 2
Additional acceleration and deceleration settings, including patterns and switching frequencies.
- Example:
F500 (0500): Acceleration Time 2. Range: 0.1~6000 sec. Default: *1 (refer to full manual for specific value).
Protection Functions
Parameters for various protection features, such as overvoltage, overload, and fault detection.
- Example:
F601 (0601): Retention Prevention Level. Range: 0~165%, 165% (Disabled). Default: 150. - Example:
F603 (0603): Emergency Stop. Range: 0 (Free Stop), 1 (Deceleration Stop), 2 (Emergency DC Braking). Default: 0.
Over-frequency
Settings related to over-frequency conditions and additional reference inputs.
- Example:
F660 (0660): Additional Reference Over-frequency Input Selection. Range: 0 (Disabled), 1 (VI/II input), ..., 13 (Binary/BCD input). Default: 0.
Meter Output
Parameters for configuring meter outputs, including adjustment, selection, and inclination characteristics.
- Example:
AN (0671): AM Terminal Meter Adjustment. Range: 0~64. Default: 2.
Control Panel Parameters
Settings for the control panel display and write protection.
- Example:
F700 (0700): Write Protection of Parameters. Range: 0 (Allowed), 1 (Prohibited). Default: 0.
My Function
This section allows for custom function assignments to input and output terminals, providing advanced logical control.
- Example (Input Function):
F900 (0900): Input Function 11. Range: 0 (Disabled), 1 (Terminal F), ..., 21 (Virtual Input Terminal 1), ..., 3099 (FE00~FE99). Default: 0. - Example (Input Function Order):
F901 (0901): Input Function Order 11. Range: 0 (NOP), 1 (ST), ..., 20 (RESET). Default: 0.
6. Error Table
This table provides a comprehensive list of error codes, their possible causes, and corresponding solutions to help troubleshoot issues with the Toshiba VF-PS1 frequency converter.
| Error Code | Problem | Possible Causes | Solution |
|---|---|---|---|
| OC1, OC1P | Overcurrent during acceleration | Acceleration time (ACC) too short; incorrect V/f setting; restart signal during motor rotation; special motor (low impedance); high manual torque increment (ub). | Increase ACC; check V/f; use Uu5 (auto-restart) and UuC (regenerative power ride-through); increase carrier frequency (F); decrease ub; decrease F601 (stop prevention level) to 130; increase EF if set below 2kHz. |
| OC2, OC2P | Overcurrent during deceleration | Deceleration time (dEC) too short; abrupt load fluctuation; abnormal load conditions. | Increase dEC; reduce load fluctuation; check load. |
| OC3, OC3P | Overcurrent at fixed speed | Main circuit element defect; temperature protection active. | Contact technical service; check fan operation (F620). |
| OCA1, OCA2, OCA3 | Short circuit in phase U, V, W | Defect in main circuit elements (phase U, V, W). | Contact technical service. |
| OCL | Overcurrent on load side during start-up | Motor output circuit insulation defect; motor impedance too low. | Check cables; select short-circuit detection in F613. |
| OCr | Overcurrent in dynamic braking element | PB-PC/+ short circuit; connected resistance below minimum. | Check resistance wiring; contact technical service. |
| OH | Overtemperature | Fan not rotating; high ambient temperature; fan blocked; heat-generating device near converter; unit thermostat disconnected. | Restart after cooling; replace fan if faulty; ensure adequate space; remove heat sources; contact technical service. |
| OH2 | Thermal fault stop command from external device | Output signal from control terminal PTG for optional cards; external device emits thermal fault command (input terminal function 46 or 47). | Motor is too hot; check if motor current exceeds average. |
| OL1 | Overload on converter | Rapid acceleration; excessive DC braking; incorrect V/f setting; restart signal during motor rotation; excessive load. | Increase ACC; reduce DC braking (F251, F252); check V/f; use Uu5 and UuC; use higher capacity converter. |
| OL2 | Overload on motor | Incorrect V/f setting; motor blocked; continuous low-speed operation; excessive load during operation. | Check V/f; check load; adjust F6065 (OL reduction start frequency); reduce DC braking (F251, F252). |
| OLF | Overload on dynamic braking resistance | Rapid deceleration; dynamic braking too high. | Increase dEC; increase dynamic braking resistance capacity (watts) and adjust Pbr, PbCP. |
| OP1 | Overvoltage during acceleration | Abnormal input voltage fluctuation; power supply capacity too high; power factor correction capacitor switching; thyristor system on same line; restart signal on rotating motor. | Install appropriate input reactor; use Uu5 (auto-restart) and UuC (regenerative power ride-through). |
| OP2 | Overvoltage during deceleration | dEC too short (regenerative energy too high); braking inertia too high; Pb (dynamic braking resistance) OFF; F305 (overvoltage limit operation) OFF; abnormal input voltage fluctuation. | Increase dEC; install dynamic braking resistance; decrease dynamic braking resistance (adjust Pbr); adjust dynamic braking mode P; adjust F305; install appropriate input reactor. |
| OP3 | Overvoltage during fixed speed operation | Abnormal input voltage fluctuation; motor in regenerative state (load causes motor to run faster than converter output frequency). | Install appropriate input reactor; install dynamic braking resistance. |
| EdO | Over-torque | Over-torque detection level reached; stop prevention operation continuous beyond F452. | Check system error; check for motor overload or brake engagement. |
| UC | Low current operation | Output current drops below low current detection level. | Check detection level (F611); contact technical service if adjustment is correct. |
| UP1 | Low voltage (main circuit) | Input voltage (main circuit) too low; momentary power failure lasting longer than F628. | Check input voltage; for momentary power failure, activate UuC (regenerative power control), Uu5 (auto-restart), and F628 (detection time). |
| E | Emergency Stop | Converter stopped from control panel during auto or remote operation; stop command activated (input terminal function 20 or 21) by external control device. | Restart converter. |
For more information, contact your supplier and request the complete VFPS1 manual.
