Delta Electronics Network Device VFD-S Especificaciones descargar pdf (Pagina 96)

7

VFD-S Series

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

7-3

Fault Name Fault Descriptions

Corrective Actions

Internal memory IC can

not be programmed.

1. Switch off power supply.

2. Check whether the input voltage falls within

the rated AC drive input voltage.

3. Switch the AC drive back on.

Internal memory IC can

not be read.

1. Check the connections between the main

control board and the power board.

2. Reset drive to factory defaults.

Drive’s internal circuitry

abnormal.

1. Switch off power supply.

2. Check whether the input voltage falls within

the rated AC drive input voltage. Switch on

the AC drive.

Hardware protection

failure

Return to the factory.

Software protection failure

Return to the factory.

Auto accel/decel failure

Don’t use the function of auto acceleration /

deceleration.

Ground fault:

The AC drive output is

abnormal. When the

output terminal is

grounded (short circuit

current is 50% more than

the AC drive rated

current), the AC drive

power module may be

damaged. The short

circuit protection is

provided for AC drive

protection, not user

protection.

Ground fault :

1. Check whether the IGBT power module is

damaged.

2. Check for possible poor insulation at the

output line.

Communication Error

1. Check the connection between the AC drive

and computer for loose wires.

2. Check if the communication protocol is

properly set.

External Base Block.

AC drive output is turned

off.

1. When the external input terminal (B.B) is

active, the AC drive output will be turned off.

2. Disable this connection and the AC drive will

begin to work again.

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