Veichi AC200 Series - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features
Daily Checking
Periodic Overhaul (every 3-4 months)
Component Lifespan and Replacement

The VEICHI AC200 Series Frequency Inverter is a versatile device designed for controlling motor speed and various industrial processes. It offers a wide range of functions, important technical specifications, and features for both usage and maintenance.

Function Description:

The inverter's core function is motor control, supporting both asynchronous and permanent magnet synchronous motors. It offers various control modes, including V/F control, high-performance Vector Control (VC) without PG, and VC with PG, allowing for precise speed and torque regulation.

For speed control, the inverter provides multiple frequency setting channels, including keyboard digital input, keyboard potentiometer, analog voltage/current terminals (VS, AI, AS), pulse input (PUL), RS485 communication, UP/DW control, PID control, program control (PLC), and multi-step speed settings. This flexibility allows integration into diverse control systems.

The inverter also manages running commands through various channels: operation panel, external terminals, communication, and expansion cards. It supports start, stop, forward/reverse, jog, multi-step speed, free stop, and reset commands, along with acceleration/deceleration time selection and external fault alarms.

Output signals include two relay outputs, one collector output, and two analog outputs (AO1/AO2) configurable for 0-10V or 4-20mA, or frequency pulse output for AO2. These outputs can be used for monitoring frequency, current, voltage, or other parameters.

Protection functions are comprehensive, covering overvoltage, undervoltage, current limit, overcurrent, overload, electric thermal relay, overheat, overvoltage stall, data protection, rapid speed protection, and input/output loss phase protection, ensuring safe and reliable operation.

The inverter incorporates PID control, speed tracking, power-off restart, jump frequency, upper/lower frequency limit control, program operation, multi-speed, RS485 communication, and analog/frequency impulse output as standard features.

Important Technical Specifications:

Output Frequency Range: G type: 0Hz-600Hz.
Output Frequency Accuracy: Max frequency ±0.5%.
Overload Capacity: G type: 150% rated current/1 min, 180% rated current/10s, 200% rated current/0.5s.
Modulate Mode: Optimized SVPWM mode.
Carrier Frequency: 0.7kHz-16.0kHz.
Speed Range: VC without PG: rated load 1:100; VC with PG: rated load 1:1000.
Steady Speed Accuracy: VC without PG: ≤2% rated synchronized speed; VC with PG: ≤0.05% rated synchronized speed.
Starting Torque: VC without PG: when 0.5Hz, 150% rated torque; VC with PG: when 0Hz, 200% rated torque.
Torque Response: VC without PG: ≤20ms; VC with PG: ≤10ms.
Frequency Accuracy: Digit setting: max frequency×±0.01%; Analog setting: max frequency×±0.2%.
Frequency Resolution: Digit setting: 0.01Hz; Analog setting: max frequency×0.05%.
DC Braking Capacity: Starting frequency: 0.00Hz-50.00Hz; Braking time: 0.0s-60.0s; Braking current: 0.0%-150.0% rated current.
Torque Upgrade Capacity: Auto torque upgrade 0.0%-100.0%; Manual torque upgrade 0.0%-30.0%.
V/F Curve Modes: Four modes: linearity, user setting, drop torque (1.1-2.0 powers), and square V/F curve.
Acceleration/Deceleration Curve: Two modes: linear and S curve. Four sets of acceleration/deceleration times, unit 0.01s selectable, longest time: 650.00s.
Rated Output Voltage: Relies on power supply voltage compensation; motor rated voltage 100%, set 50-100% (output cannot exceed input).
Voltage Auto-Adjust: Auto-keeps constant output voltage despite power supply fluctuations.
Auto Energy-Saving Running: Optimizes output voltage to save energy under V/F control mode.
Auto-Limit Current: Prevents overcurrent break.
Instant Power Off Treatment: Continual operation by bus voltage control during instant power off.
Input Voltage/Frequency: Single phase 220V 50Hz/60Hz; Three phase 220V/380V/660V/1140V 50Hz/60Hz.
Allowable Fluctuations: Voltage unbalance rate: <3%; Frequency: ±5%; Aberration rate: as IEC61800-2 required.
Inrush Current: Lower than rated current.
Power Factor: ≥0.94 (with DC reactor).
Efficiency: ≥96%.
Output Voltage: 3 phase, 0V-input voltage, inaccuracy <5% under rated conditions.
Installation Place: Altitude ≤ 1000m (derating 1% per 100m above 1000m); no condensation, ice, rain, snow, hail; solar radiation below 700W/m²; air pressure 70kPa-106kPa.
Temperature/Humidity: -10°C to +50°C (derating above 40°C, max 60°C no load); 5%-95% RH (no condensation).
Vibration: 9Hz-200Hz, 5.9m/s² (0.6G).
Store Temperature: -30°C to +60°C.
Installation Type: Hanging type, cabinet type.
Protection Degree: IP20.
Cooling Mode: Forced cooling.

Usage Features:

The AC200 inverter is designed for user-friendly operation with a clear keyboard layout and LED monitor. The LED monitor displays various parameters like frequency, current, voltage, motor speed, and percentage, with indicators for units (Hz, A, V, S, RPM, %) and running status (FWD, REV/JOG).

The keyboard includes dedicated keys for Menu (PRG), Confirm/Modify (SET), Up/Down, Shift, Forward Run (FWD), Jog/Reverse (JOG REV), and Stop/Reset (STOP RESET). A keyboard potentiometer allows for inputting frequency, torque, or PID settings.

Parameter settings are organized into groups (F0.xx for basic parameters, F1.xx for run control, F2.xx for digital terminals, F3.xx for analog terminals, F4.xx for system parameters, F5.xx for motor parameters, F6.xx for motor VC parameters, F7.xx for torque control, F8.xx for motor V/F control, FA.xx for protection, Fb.xx for PID control, FC.xx for multi-speed/PLC, and Fd.xx for communication). This structured approach simplifies configuration.

The inverter supports parameter copying, allowing users to upload/download settings between the inverter and keyboard for quick configuration of multiple devices.

Maintenance Features:

The manual emphasizes the importance of periodic overhaul and maintenance to prolong the inverter's lifespan and prevent malfunctions. A recommended overhaul schedule is every 3-4 months after installation.

Daily Checking:

Power Supply: Verify it meets requirements and check for lack-phase.
Surroundings: Ensure environmental conditions are met.
Cooling System: Check for abnormal heat, discoloration, and proper fan operation (clean dirty fans, address stalled rotation).
Motor: Listen for abnormal vibration or noise.
Load: Confirm output current is within motor/inverter rated values.

Periodic Overhaul (every 3-4 months):

Whole Device: Check insulated resistance and overall condition.
Electric Connection: Inspect wires and connectors for discoloration, disrepair, cracks, aging insulation, fraying, damage, or looseness. Measure and fasten earth terminals.
Mechanical Connection: Check for abnormal vibration, noise, or loose components.
Semi-conductive Components: Inspect for dust, rubbish, or obvious external changes.
Electrolytic Capacitor: Check for liquid leaks, discoloration, cracks, safety valve outcrop, inflation, or creaks.

Component Lifespan and Replacement:

The manual provides estimated useful lifetimes for key components:

Fan: 2-3 years
Electrolytic Capacitor: 4-5 years
PCB: 8-10 years

Users are advised to change components before their lifetime expires. For other internal components, it is recommended to contact VEICHI service or authorized centers for replacement due to strict requirements on maintenance technology and product familiarity.

The AC200 also includes fault codes (e.g., E.50 for system abnormal, EOC1 for ACC overcurrent, E.042 for rectifier overheat, EEEP for storage fault) and pre-alarm codes, which aid in diagnosing and troubleshooting issues. The malfunction diagnosis information and types can be accessed through specific parameters, providing valuable insights for maintenance personnel.