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Athena Control
Frequency Inverters

RNB6000

RENLE

Variable-frequency drive for three-phase AC motor speed control using modern microprocessor technology with SVPWM control theory and IGBT power output devices, with adjustable carrier frequency to reduce motor noise.

Power Range1.5–315 kW
Rated Current4.0–600 A
Input Voltage3-phase 380 Vac, 50/60 Hz
Output Frequency0–600 Hz
Control TypeOptimized Space Vector SPWM
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RNB6000

Product Details

OVERVIEW

The RNB6000 Series is a variable-frequency drive for three-phase AC motor speed control, employing modern microprocessor technology with SVPWM control theory and IGBT power output devices.

With adjustable carrier frequency to reduce motor noise, the RNB6000 targets fan, air compressor, and pump systems operating outside their high-efficiency zones — including applications with large pressure and flow changes, extended run times, and systems currently using wind deflectors, valve interception, or bypass flow for flow adjustment.

RNB6000

Variable-frequency drive for three-phase AC motor speed control using modern microprocessor technology with SVPWM control theory and IGBT power output devices, with adjustable carrier frequency to reduce motor noise.

Space Vector Technology

Newest space vector algorithm delivers high low-frequency torque with minimal switching loss for efficient motor control.

Software Dead-Zone Compensation

Unique dead-time compensation method ensures stable, smooth torque output at low and extreme speeds.

Speed Tracking Self-Start

Automatically recognizes the running motor's speed and transitions to inverter control without stopping. No speed sensor required.

Auto Energy Saving

Dynamic software power factor regulation continuously adjusts to load changes, minimizing energy consumption.

Voltage Fluctuation Control

Output voltage is held within ±5% even when input voltage varies within ±20%, ensuring stable motor performance.

Comprehensive Protection

Built-in overvoltage, overcurrent, undervoltage, IGBT short-circuit, and inverse time limit overload protection.

DC Power Supply Support

Supports DC bus power supply connection, reducing power supply investment cost when powering multiple drives from a shared DC bus.

Built-in PWM Energy Braking

Flexible energy consumption braking built in; user selects an appropriate external braking resistor for the application.

HMI & I/O Interface

LCD Chinese/English display with 8 digital inputs, 2 analog inputs, 3 digital outputs, and 2 analog outputs.

Intelligent Temperature Management

Intelligent heat sink temperature detection with automatic fan start/stop control for extended component life.

DC Braking

Built-in DC braking support for controlled motor deceleration and hold applications.

Power Loss Ride-Through

Maintains operation during momentary power loss by utilizing motor inertia energy to sustain the DC bus.

SPECIFICATIONS

INPUT

4 SPECS
Power Supply
3-phase 380 Vac, 50/60 Hz
Input Voltage Range
±20%
Voltage Imbalance Ratio
<3%
Frequency Range
±5%

OUTPUT

9 SPECS
Applicable Motor Capacity
1.5–315 kW (constant torque)
Rated Output Current
4.0–600 A (constant torque)
Rated Output Voltage
3-phase 380 V, 50/60 Hz
Frequency Range
0–600 Hz
Setting Resolution — Analog
0.4% of maximum set frequency
Setting Resolution — Digital
0.01 Hz (≤100 Hz); 0.1 Hz (>100 Hz)
Frequency Precision — Analog
±0.2% (25 ± 10°C)
Frequency Precision — Digital
±0.01% (−10 to +50°C)
Overcurrent Withstand
150% rated output current for 1 min

CONTROL

16 SPECS
Control Type
Optimized Space Vector SPWM
Torque Compensation
Auto torque boost at start; up to 150%
Slip Compensation
Compensates speed drop under load
Restart After Power Failure
Restarts upon power recovery after momentary outage
Upper/Lower Frequency Limit
Settable
Skip Frequency
3 groups settable
Speed Tracking Restart
Switches to variable frequency control without stopping motor
Accel/Decel Time
0.1–999.9 s; independently settable
Accel/Decel Curve Types
Linear, S1, S2 curve
Operation Modes
Keyboard; keyboard control; communication; digital input; analog input
Serial Communication
RS485 port, upper machine control
Stop Modes
Free stop; deceleration stop; deceleration with DC braking
Carrier Frequency
1–6 kHz (adjustable for low-noise control)
PID Closed-Loop Control
Available for flow, pressure, temperature systems
Frequency Setting Methods
Keyboard (▲/▼); analog input (0–10 VDC, 0–20 mA, 4–20 mA); multi-step (1–7 steps via digital input)
Running Status Output
Relay (run/fault/monitor status); analog output (frequency, current, voltage, speed — selectable)

PROTECTION

8 SPECS
Overload
Monitors output load current
Overvoltage
Monitors DC bus overvoltage
Surge Voltage
Line-to-line or line-to-ground surge events
Undervoltage
Triggers when DC bus drops below threshold
Overheat
Monitors heat sink temperature
Short-Circuit to Ground
Activates when output-side grounding short occurs
Overcurrent
100–150% (adjustable)
Grounding
Inverter stops if any of U, V, W is shorted to ground

ENVIRONMENT & INSTALLATION

5 SPECS
Installation Site
Indoor; altitude <1,000 m; no corrosive/flammable gas, dust, oil mist, or water drops; no direct sunlight; no strong magnetic field
Operating Temperature
−10°C to +40°C
Humidity
5–95% RH (non-condensing)
Vibration
≤ 0.5 g
Storage Temperature
−25°C to +65°C

Use Cases

APPLICATIONS

Engineered for demanding environments across multiple industries and operating conditions.

01Fans
02Air Compressors
03Pumps
04HVAC Systems
05Variable Flow Systems
06Extended-Run Industrial Systems

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Contact Athena Control for pricing, availability, and technical support for the RNB6000.

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