Delta VFD004L11A - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The VFD-L series AC Drive is a compact and panel-installation drive manufactured by Delta Electronics, Inc. It is designed for variable frequency drive applications and incorporates high-quality components and the latest microprocessor technology.

Function Description:

The VFD-L AC Drive controls the speed and torque of AC motors by varying the frequency and voltage of the power supplied to them. It offers a comprehensive set of functions for various industrial automation needs, including:

Speed Control: Allows precise control over motor speed through various input sources such as digital keypad, analog voltage (0-10V), analog current (4-20mA), potentiometer, or RS-485 serial communication.
Multi-Step Speed and PLC Functionality: Supports multi-step speed commands, enabling the drive to operate at predefined frequencies. It also features an internal Process Logic Control (PLC) function, allowing users to program sequences of speeds and directions, eliminating the need for external controls, relays, or switches in many applications.
Acceleration/Deceleration Control: Provides adjustable acceleration and deceleration times (Taccel and Tdecel) to ensure smooth motor starts and stops. It also offers S-curve acceleration/deceleration options for even smoother transitions, and auto-acceleration/deceleration features for optimized performance.
Jog Operation: Enables temporary, low-speed operation for precise positioning or testing.
Braking Functions: Includes DC braking during start-up and stopping to reduce stopping time and hold loads in position. Dynamic braking resistors can be used for quicker decelerations with high inertial loads.
Communication: Equipped with a built-in RS-485 serial interface (RJ-11 Jack) for communication with a personal computer or other master devices using Modbus ASCII or RTU protocols. This allows for remote parameter setting and control.
Protection Functions: Features a comprehensive fault diagnostic system with various protective functions, including over-voltage, over-current, overheat, overload, external fault, CPU failure, hardware protection failure, and auto accel/decel failure. These functions help prevent damage to the drive and the motor.
Counter Function: Includes an internal counter that can be triggered by an external signal, useful for counting processing steps or units of material.
Output Functions: Provides multi-function output terminals that can be programmed to indicate various operational statuses such as desired frequency attained, maximum output frequency attained, zero speed, over-torque detection, base-block indication, low voltage indication, AC drive operation mode, fault indication, PLC program running/completed/paused, and terminal count value attained.

Important Technical Specifications:

Voltage Class: Available in 115V and 230V models.
Applicable Motor Output (kW): Ranges from 0.2 kW to 1.5 kW.
Rated Output Capacity (kVA): Ranges from 0.6 kVA to 2.7 kVA.
Rated Output Current (A): Ranges from 1.6 A to 7.0 A.
Max. Output Voltage (V): Up to 255V.
Rated Frequency (Hz): 1.0 Hz to 400 Hz.
Input Voltage Tolerance:
- Single phase: 90-132V 50/60Hz (for 115V models)
- Single / 3-phase: 180-264V 50/60Hz (for 230V models)
- 3-phase: 180-264V 50/60Hz (for 230V models)
Frequency Tolerance: ±5%.
Control System: SVPWM (Sinusoidal Pulse Width Modulation) with a carrier frequency of 3kHz-10kHz.
Output Frequency Resolution: 0.1Hz.
Torque Characteristics: Includes auto-torque and auto-slip compensation, with a starting torque of 150% at 5 Hz.
Overload Endurance: 150% of rated current for 1 minute.
Accel/Decel Time: 0.1-600 seconds (can be set individually).
V/F Pattern: Adjustable.
Stall Prevention Level: 20-200% of rated current.
Ambient Temperature: -10°C to +40°C (operation), -20°C to +60°C (storage/transportation).
Ambient Humidity: Below 90%RH (non-condensing).
Vibration: Maximum 9.86 m/s² (1G) at less than 20Hz, 5.88 m/s² (0.6G) at 20 to 50Hz.
Pollution Degree: 2 (good for a factory type environment).
Altitude: 1,000 m or below.
EMI Filter: Included in some models (e.g., VFD007L21B).

Usage Features:

Digital Keypad (VFD-PU01): Provides a user-friendly interface for parameter display and programming. It shows operational status such as reference frequency, output frequency, and output current. Keys include Mode/Reset, PROG/DATA, Run/Stop, and Up/Down for navigation and setting adjustments.
Parameter Settings: Organized into groups (User, Basic, Operating Method, Output Function, Input Function, Multi-step Speed/PLC, Protection, Motor, Special, Communication) for easy access and configuration.
Analog Inputs: Supports 0-10V and 4-20mA signals for master frequency setting, allowing integration with external control systems.
Multi-Function Input Terminals: Customizable inputs (M0, M1, M2, M3) for various control commands like FWD/STOP, REV/STOP, RUN/STOP, 3-wire operation, external fault, reset, multi-step speed commands, jog operation, accel/decel speed inhibit, accel/decel time selection, base-block control, increase/decrease master frequency, run/pause PLC program, counter trigger, counter reset, and ACI/AVI selection.
Potentiometer Control: An on-board potentiometer allows for direct frequency adjustment. External potentiometers can also be used with bias and gain adjustments for fine-tuning the frequency range.
Automatic Voltage Regulation (AVR): Automatically regulates the AC drive output voltage to the maximum output voltage, ensuring stable operation even with varying input voltages.
Line Start Lockout: Prevents the drive from starting automatically when powered up with run commands applied, requiring a deliberate run command after power-up.
Momentary Power Loss Operation: Configurable to stop operation, continue with speed search from master frequency, or continue with speed search from minimum frequency after a momentary power loss, depending on the duration of the power loss.

Maintenance Features:

Periodic Inspection: Recommended monthly check-ups by a qualified technician to ensure proper motor operation, normal installation environment, effective cooling system, absence of irregular vibration or sound, and correct input voltage.
Periodic Maintenance:
- Tighten and reinforce screws to prevent loosening due to vibration or temperature changes.
- Check conductors and insulators for corrosion and damage.
- Measure insulation resistance with a Mega-ohmmeter.
- Regularly check and replace capacitors and relays.
- For extended periods of disuse, power on the drive for at least 5 hours every two years to confirm functionality before running a motor.
- Clean dust and dirt from ventilation ports and PCBs using a vacuum cleaner to prevent unforeseen failures.
Fault Diagnostics: The drive's fault diagnostic system displays fault messages (e.g., OC, OV, OH, OL, EF, cF3, HPF, ocA, ocd, ocn, GF) on the digital keypad. The six most recent faults are recorded and can be viewed for troubleshooting. Faults can be cleared by a reset from the keypad or an input terminal.

Delta VFD004L11A Specifications

General

Brand	Delta
Model	VFD004L11A
Category	Industrial Electrical
Language	English

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