Document Overview and Basic Equipment Information
Document positioning: The official user manual for Toshiba TOSBERT S11 series frequency converters is designed for electrical engineers and maintenance personnel, covering the entire process of equipment installation, wiring, operation, parameter setting, fault handling, and maintenance, highlighting the characteristics of "compact" and "high compatibility".
Equipment specifications and models:
Voltage level, power range, input type, applicable scenarios, typical models
200V level 0.1-1.5kW single-phase small equipment (laboratory instruments, household equipment) S11-2001S (0.1kW), S11-2015S (1.5kW)
200V level 2.2-15kW three-phase small and medium-sized motors (conveyors, packaging machines) S11-2002H (2.2kW), S11-2015H (15kW)
400V level 0.4-30kW three-phase medium and large equipment (fans, pumps, small machine tools) S11-4004H (0.4kW), S11-4030H (30kW)
Model coding rules: Taking "S11-4015H-C" as an example, the meanings of each part are:
S11: Series Code (TOSBERT S11 Series)
4: Voltage level (2=200V level, 4=400V level)
015: Capacity (15kW, 0.1kW model standard 001)
H: Basic configuration (H=standard, S=simple, L=low noise)
C: Optional functions (C=built-in communication module, F=built-in braking unit)
Core technical features:
Ultra compact design: The volume is reduced by 30% compared to the previous generation S7 series, and the size of the 0.4kW model is only 75 × 130 × 100mm, saving control cabinet space.
High protection and compatibility: basic model IP20, optional IP40 (anti solid foreign object+anti splash water); Compliant with NEMA ISO14001 Part 31, fully compatible with variable frequency drive, suitable for various asynchronous motors.
Control accuracy: In sensorless vector (SVC) mode, the output is 150% of the rated torque at 0.5Hz, with a speed accuracy of ± 0.1%, meeting the high-precision requirements of small and medium power.
Installation specifications and environmental requirements
1. Installation method (segmented by power)
Power Range Installation Method Installation Requirements Applicable Scenarios
≤ 0.4kW (200V single-phase/400V three-phase) DIN rail installation compatible with 35mm standard DIN rail, rail length ≥ inverter width, installation surface flatness ≤ 0.5mm Small control cabinet, distributed installation
≥ 0.75kW (200V three-phase/400V three-phase) vertical wall mounted installation fixed on a metal backplate with a thickness of ≥ 1.5mm, backplate grounded (≤ 10 Ω), screw torque 2.5-4.0N · m, medium-sized control cabinet, centralized installation
All models (IP40 configuration) require a larger ventilation gap (≥ 5cm on both sides) to be reserved for independent installation. It is prohibited to be in close proximity to heating equipment (such as contactors) in dusty/humid environments (such as food processing workshops)
2. Ventilation gaps and environmental restrictions
Ventilation gap (Figure 2-1):
Protection level: Top gap, bottom gap, left and right gap, back gap
IP20 ≥5cm ≥5cm ≥3cm ≥5cm
IP40 ≥8cm ≥8cm ≥5cm ≥8cm
Environmental restrictions:
Temperature: IP20 model -10 ℃~40 ℃, IP40 model -10 ℃~50 ℃; For every 1 ℃ increase in overheating, the rated power decreases by 1% (up to a maximum of 50 ℃).
Humidity: ≤ 90% RH, no condensation (condensation environment requires IP40+anti condensation heater).
Altitude: ≤ 1000m (over 1000m, power reduction of 1% per 100m, up to 3000m).
Vibration: Acceleration ≤ 0.5G (10-50Hz), amplitude ≤ 0.08mm (50-150Hz), exceeding the range requires adding or removing vibration pads.
3. Transportation and Storage
Transportation: Fill the packaging box with cushioning material, do not invert/flip it over, and avoid collision (to prevent damage to internal capacitors and modules).
Storage: Temperature -20 ℃~60 ℃, humidity ≤ 60% RH; long-term storage (≥ 6 months). Power on for 30 minutes every 6 months (no load) to activate the capacitor.

Wiring specifications and hardware configuration
1. Main circuit wiring (with differences in power segments)
(1) 200V level (single-phase/three-phase) main circuit terminal
Terminal identification function wiring requirements cable specifications (copper core)
L/N (single-phase), L1/L2/L3 (three-phase) power input series MCCB (capacity=1.2-1.5 × rated current), prohibit connecting compensating capacitors 0.1-0.75kW: 0.75mm ²; 1.5-15kW:1.5-4mm²
U/V/W motor output corresponds to motor U/V/W, reverse exchange any two phases; Cable length ≤ 30m (over 30m with output reactor) consistent with input cable
PE protective grounding Class 3 grounding (≤ 10 Ω), yellow green dual color wire, prohibited from sharing ≥ 1/2 of input cable with neutral wire, minimum 0.75mm ²
B1/B2 brake resistor connection ≤ 7.5kW can be connected to a built-in resistor; 7.5kW requires an external connection of ≥ 1.5mm ² (optional according to braking power)
(2) 400V level main circuit terminal
Power ≤ 7.5kW: The terminal configuration is the same as 200V three-phase, with the addition of "input filter terminal (F1/F2)" and optional EMC filter.
Power ≥ 11kW: divided into "main power input (L1/L2/L3)" and "reactor input (L1R/L2S/L3T)", forced external input reactor (harmonic suppression, protection module).
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