31C022-503-4-00
Description



1. Model Code Explanation
2. Electrical Specifications
Rated Output Power: 2.2 kW
Input Voltage: 3-phase AC 380~500 V
Rated Frequency: 50 Hz / 60 Hz
Rated Continuous Output Current: 5.9 A
Output Voltage Range: 0~480 V 3-phase AC
Output Frequency Range: 0~400 Hz
Control Mode: V/F open-loop / Sensorless vector control
Overload Capacity: 150% rated current for 60 seconds
Adjustable Switching Frequency: 4kHz / 8kHz / 12kHz / 16kHz
Standard equipped with STO Safe Torque Off function
3. Physical and Environmental Parameters
Protection Class: IP20
Cooling Mode: Natural air cooling
Full-load Operating Temperature: 0°C ~ +45°C
Storage Temperature: -25°C ~ +70°C
Working Humidity: 5%~95%, non-condensing
Installation Method: Vertical wall mounting
Max applicable altitude: ≤1000m without power derating
Approximate Weight: 2.8 kg
4. Standard Interfaces
Onboard RS485 interface, support Modbus RTU protocol
Dual analog input: 0-10V DC / 0-20mA
6 programmable 24V DC digital input terminals
2 programmable relay output terminals
PTC motor over-temperature protection input
Brake resistor connection terminal
Multi-step speed control terminals
Support external FBG31C operation panel for parameter setting
5. Main Functions
Acceleration and deceleration time adjustable from 0.1s to 600s
Built-in DC braking and dynamic braking for fast stopping
Intelligent energy-saving running mode
Three control modes: panel control, terminal control, communication control
Slip compensation function for stable speed under load
Soft start and soft stop to reduce impact current and mechanical vibration
Integrated PID closed-loop control for constant speed and constant pressure
Parameter save, copy and restore functions available
Excellent low-speed high torque performance
6. Protection Functions
Instantaneous overcurrent and thermal overload protection
Overvoltage and undervoltage protection
Input phase loss detection and protection
Inverter internal overheat protection
Electronic thermal motor overload protection
Output short circuit and earth fault protection
Anti-stall protection
ESD protection for control terminals
Hardware STO safety torque off protection
7. Installation and Wiring Requirements
Cut off power supply before wiring, commissioning and maintenance
Separate power cables and control cables to avoid interference
Ensure reliable PE grounding connection
Keep sufficient space around for heat dissipation
Avoid installation in dusty, humid, oily and corrosive environments
Use shielded dedicated frequency conversion cables for motor wiring
8. Basic Commissioning Steps
Check all wiring to eliminate wrong connection and short circuit risks
Confirm input voltage matches inverter rated voltage level
Set motor rated voltage, current, frequency and speed correctly
Select appropriate control mode according to on-site requirements
Set reasonable acceleration/deceleration time and frequency limit
Perform no-load test run to check motor running status
Put into formal load operation after stable operation
9. Daily Maintenance
Clean surface dust every 3-6 months regularly
Periodically check the tightness of all wiring terminals
Monitor running current and internal temperature during operation
All maintenance and fault inspection must be operated by qualified professional electricians
Get a Quote