What to do if Delta VFD-A detect excessive heat?
If the Delta DC Drives temperature sensor detects excessive heat, make sure that the ambient temperature is within the specified temperature range. Also, ensure that the ventilation holes are not obstructed. Remove any foreign objects on the heatsinks and check for possible dirty heatsink fins. Provide enough spacing for adequate ventilation.
What to do if Delta DC Drives detect that the DC bus voltage has exceeded its maximum allowable value?
If Delta DC Drives detect that the DC bus voltage has exceeded its maximum allowable value, check whether the input voltage falls within the rated AC drive input voltage. Check for possible voltage transients. Bus over-voltage may also be caused by motor regeneration. Either increase the Decel time or add an optional braking resistor. Check whether the required braking power is within the specified limits.
What to do if Delta VFD-A DC Drives detect that the DC bus voltage has fallen below its minimum value?
If Delta DC Drives detect that the DC bus voltage has fallen below its minimum value, check whether the input voltage falls within the rated AC drive’s input voltage.
What to do if Delta VFD-A DC Drives have ground fault or fuse failure?
If there is a ground fault or fuse failure in Delta DC Drives, check whether the IGBT power module is damaged and inspect for possible poor insulation at the output line. Note that the short circuit protection is provided for the AC drive protection, not user protection. If a fuse has failed, see the next question.
What to do if the fuse fails in Delta DC Drives?
If the fuse fails in Delta DC Drives, replace the fuse. Also, check whether the IGBT power module is damaged and inspect for possible poor insulation at the output line.
Provides initial steps for using the AC drive, including unpacking and basic setup.
Guidelines for handling the AC drive upon receipt, during transport, and for storage.
Details on understanding the information provided on the AC drive's nameplate.
Instructions for safely removing the front cover of the AC drive unit.
Specifies the conditions and space needed for proper AC drive installation.
General guidelines and considerations for wiring the AC drive.
Illustrates the fundamental connections for the AC drive's wiring.
Details the pin assignments for the AC drive's main circuit power terminals.
Provides dimensions for the AC drive's connection terminals.
Highlights critical safety precautions for main circuit wiring.
Details control terminal symbols, uses, and functions.
Identifies and explains the parts and functions of the digital keypad.
Explains the function of each keypad key and common display messages.
Steps for initial start-up with the motor disconnected from the drive.
Configuration of frequency source (Pr.00) and command source (Pr.01).
Defines how the motor stops when a stop command is received (Pr.02).
Explains V/F curve settings and related parameters (Pr.03-09).
Details parameters for maximum voltage, mid-point, and minimum frequency/voltage.
Provides common V/F pattern settings for general purpose, fans/pumps, and high torque.
Sets the time for ramping up/down to maximum frequency (Pr.10, Pr.11).
Configures second accel/decel times (Pr.12, Pr.13) and jog time (Pr.14).
Sets the frequency for jog operations (Pr.23).
Enables or disables reverse run operation (Pr.24).
Configures over-voltage (Pr.25) and over-current stall prevention (Pr.26, Pr.27).
Sets DC braking current (Pr.28), start-up time (Pr.29), stopping time (Pr.30), and starting frequency (Pr.31).
Configures behavior during power loss (Pr.32, Pr.33, Pr.34).
Sets the current limit for speed search operation after power loss (Pr.35).
Sets the reference frequency upper (Pr.36) and lower (Pr.37) limits.
Selects between 2-wire and 3-wire control modes.
Configures functions for multi-function input terminals 1, 2, and 3.
Selects whether the analog output is frequency or current (Pr.42).
Sets a multiplier for the digital output frequency (Pr.43).
Regulates the analog signal output level (Pr.44).
Configures multi-function output terminals MO1 and MO2 (Pr.45, Pr.46).
Sets the desired frequency attainment level (Pr.47).
Sets analog input levels for output frequency range (Pr.48, Pr.49).
Defines the combined analog input signal levels for voltage and current.
Illustrates an application example for analog input frequency command.
Sets motor rated current (Pr.52) and no-load current (Pr.53).
Configures auto torque compensation for startup (Pr.54).
Compensates for motor slip based on output current (Pr.55).
Sets multi-function output contacts (Pr.57) for indicators.
Configures motor derating and thermal characteristic selection (Pr.58, Pr.59).
Sets over-torque detection mode, level, and time (Pr.60, Pr.61, Pr.62).
Detailed explanation of over-torque detection parameters.
Configures what is displayed on the drive's monitoring screen (Pr.64).
Sets the coefficient for user-defined display values (Pr.65).
Sets skip frequencies (Pr.67-69) and band (Pr.70) to avoid resonance.
Lists common AC drive failure types like over-voltage, overload, and stalled motor.
Details common faults (e.g., OC, OV, OH) and their corresponding solutions.
Details common faults (e.g., OL1, OL2, OCA) and their corresponding solutions.
Details common faults (e.g., OCN, EF, CF1) and their corresponding solutions.
Details common faults (e.g., CF3, HPF, GFF) and their corresponding solutions.
Details common faults (e.g., LV, Lv1, CF2) and their corresponding solutions.
Details common faults (e.g., BB, OL2) and their corresponding solutions.
Details common faults (e.g., E²PROM error, Ground fault) and their corresponding solutions.
Explains computer control interface and data format for serial communication.
Details computer control and parameter setting commands via serial interface.
Explains commands for reading parameters and drive status via serial interface.
Provides detailed information on AC drive status read commands.
Details the serial communication protocol and control command structures.
Explains operation commands and parameter setting command structures.
Details commands for reading parameters and drive status.
Provides detailed information on AC drive status read commands.
Explains character delay and response delay times in serial communications.
Provides dimensional drawings for VFD-A series models (0.75-2.2kW).
Provides dimensional drawings for VFD-A series models (3.7-22kW).
Details the LC-A05E digital keypad for 1HP-5HP AC drives.
Details the LC-A10E digital keypad for 7.5HP-30HP AC drives.
Lists specifications for braking units used with 230V series drives.
Lists specifications for braking units used with 460V series drives.
Lists various accessories including remote boxes, keypads, cables, resistors, and EMI cores.
Provides a guide for selecting suitable EMI filters for AC motor drives.
Declaration of conformity with Low Voltage Directive 73/23/EEC.
Declaration of conformity with Electromagnetic Compatibility Directive 89/336/EEC.
Provides recommended non-fuse circuit breaker ratings for 1-phase and 3-phase drives.
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General