Toshiba TOSBERT S7 series frequency converter

Toshiba TOSBERT S7 series frequency converter

Document Overview and Equipment Core Positioning

1. Document positioning and target audience

Document attribute: Toshiba TOSBERT S7 series inverter official complete version user manual, covering the entire process from basic installation to advanced function configuration and fault maintenance. It is the core operation guide for electrical engineers, equipment operation and maintenance personnel, and installation and debugging personnel.

Core objective: To ensure the safety and proper use of frequency converters by users, fully leveraging their advantages of vector control, high efficiency, energy saving, and multi scenario adaptation, while reducing the incidence of failures and maintenance costs.

2. Basic equipment information

(1) Full range specifications of models

The TOSBERT S7 series covers the full power range from low voltage to high voltage, suitable for different industrial scenarios. The specific classifications are as follows:

Voltage level, power range, model identification, core application, typical models

200V level (single-phase/three-phase) 0.4-75kW S7-2XXX small conveyor, packaging machine, laboratory equipment S7-2037H (37kW, three-phase input), S7-2004S (0.4kW, single-phase input)

400V level (three-phase) 0.75-630kW S7-4XXX fan, pump, compressor, machine tool, crane  S7-4220H（220kW）、S7-4007S（0.75kW）、S7-4630H（630kW）

High voltage level (6.6kV/11kV) 200-2000kW S7-HVXXX large fan, high-pressure compressor, industrial pump set  S7-HV630（6.6kV/630kW）、S7-HV1100（11kV/1100kW）

(2) Analysis of Model Coding Rules

Taking the typical model "S7-4220H-F" as an example, the meanings of each paragraph are as follows:

S7: Product series identification (TOSBERT S7 series);

4: Voltage level (2=200V level, 4=400V level, HV=high voltage level);

220: Rated capacity (220kW, high voltage level directly labeled power, such as HV630=630kW);

H: Basic configuration (H=standard configuration, S=simple configuration, L=low-noise configuration);

F: Optional functions (F=built-in braking unit, C=built-in communication module, P=with input reactor).

(3) Core technological advantages

Leading control accuracy: In sensorless vector control (SVC) mode, it can output 150% rated torque at 0.5Hz with a speed accuracy of ± 0.1%; Under the sensor vector control (FVC) mode, the speed accuracy can reach ± 0.01%, which is suitable for high-precision speed control scenarios such as machine tools and printing machines.

Multi mode compatibility: Supports three core modes: V/f control, SVC, FVC, which can be switched with one click through parameters to adapt to different load types such as fans/pumps (variable torque), conveyors (constant torque), cranes (high torque start), etc.

Outstanding energy-saving performance: Built in fan/pump specific energy-saving curve, saving 5-15% energy compared to ordinary frequency converters; The automatic energy-saving mode can dynamically adjust the output voltage according to the load current, and the energy-saving effect is more significant under light load.

Protection and stability: The basic model has a protection level of IP20 (anti finger touch), with an optional IP40 (anti solid foreign object intrusion, anti splash water); The core power module adopts Toshiba's original IGBT, with a temperature resistance range of -10~50 ℃ and an MTBF (mean time between failures) of over 100000 hours.

Installation specifications and environmental requirements

1. Installation method and space requirements

(1) Installation method (segmented by power)

Wall mounted installation: 200V level (≤ 75kW), 400V level (≤ 75kW), need to be fixed on a metal backplate with a thickness of ≥ 2mm, and the backplate needs to be grounded (grounding resistance ≤ 10 Ω); The flatness error of the installation surface should be ≤ 0.5mm to avoid vibration transmission.

Ground installation: 400V level (≥ 90kW), high voltage level, requiring a dedicated steel base with a height of ≥ 10cm (to prevent water damage and facilitate heat dissipation); A shock-absorbing pad (hardness 50-60 Shore hardness) should be added between the base and the ground to reduce equipment vibration during operation.

Parallel installation: When multiple frequency converters are parallel, the spacing should be ≥ 15cm (≤ 75kW) and ≥ 20cm (≥ 90kW), and it is forbidden to stack them up and down (which may cause poor heat dissipation of the upper equipment).

(2) Ventilation gap and heat dissipation requirements

The heat dissipation effect of the frequency converter directly affects its service life, and strict ventilation gaps are required for different power ranges:

Power Range Top Gap Bottom Gap Left and Right Side Gap Back Gap Heat Dissipation Method

≤ 75kW ≥ 10cm ≥ 10cm ≥ 5cm ≥ 10cm Natural heat dissipation+built-in fan

90-220kW ≥ 15cm ≥ 15cm ≥ 10cm ≥ 15cm Forced air cooling (dual fan redundant design)

≥ 250kW ≥ 20cm ≥ 20cm ≥ 15cm ≥ 20cm Forced air cooling+optional water cooling for heat dissipation

Special requirement: It is prohibited to install obstructions such as air ducts and cable trays above the frequency converter; The air outlet of the cooling fan should face the open area to avoid hot air backflow.