Delta PG-40 Specifications download pdf (Page 117)

VFD-B Series

7-4

Fault

Name

Fault Descriptions

Corrective Actions

Emergency stop.

When the multi-function

input terminals (MI1 to

MI6) are set to

emergency stop, AC

drive stops any output.

Press RESET after fault has been

cleared.

Internal memory IC can

not be programmed.

1. Return to the factory.

2. Check the EEPROM on the control

board.

Internal memory IC can

not be read.

1. Return to the factory.

2. Reset drive to factory defaults.

Drive’s internal circuitry

abnormal.

Return to the factory.

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.

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Delta PG-40 Specifications Page 117

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