Delta 1.07 VFD-D D User Manual download pdf (Page 122)

Chapter 6 Fault Codes and Descriptions |DD Series

6-1

Chapter 6 Fault Codes and Descriptions

6-1 Common Problems and Solutions

6-2 Maintenance and Inspectations

The AC motor drive has a comprehensive fault diagnostic system that includes several different alarms

and fault messages. Once a fault is detected, the corresponding protective functions will be activated.

The following faults are displayed as shown on the AC motor drive digital keypad display. The six most

recent faults can be read from the digital keypad or communication.

The AC motor drive is made up by numerous components, such as electronic components, including IC,

resistor, capacity, transistor, and cooling fan, relay, etc. These components can’t be used permanently.

They have limited-life even under normal operation. Preventive maintenance is required to operate this

AC motor drive in its optimal condition, and to ensure a long life.

Basic check-up items to detect if there were any abnormalities during operation are:

; Wait 5 seconds after a fault has been cleared before performing reset via keypad of

input terminal.

; Only qualified personnel can install, wire and maintain AC motor drives. Do not wear

any metallic accessory such as watches or rings when installing the drives. Please

use proper insulated tools only.

; Never reassemble internal components or wiring.

; Make sure that installation environment comply with regulations without abnormal

noise, vibration and smell.

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Delta 1.07 VFD-D D User Manual Page 122