Delta PG-40 Specifications download pdf (Page 116)

7

VFD-B Series

DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED

7-3

Fault

Name

Fault Descriptions

Corrective Actions

Over-current during

acceleration:

1. Short-circuit at motor

output.

2. Torque boost too

high.

3. Acceleration time too

short.

4. AC drive output

capacity is too small.

1. Check for possible poor insulation at the

output line.

2. Decrease the torque boost setting in

Pr.7-02.

3. Increase the acceleration time.

4. Replace the AC drive with one that has a

higher output capacity (next HP size).

Over-current during

deceleration:

1. Short-circuit at motor

output.

2. Deceleration time too

short.

3. AC drive output

capacity is too small.

1. Check for possible poor insulation at the

output line.

2. Increase the deceleration time.

3. Replace with the AC drive with one that

has a higher output capacity (next HP

size).

Over-current during

steady state operation:

1. Short-circuit at motor

output.

2. Sudden increase in

motor loading.

3. AC drive output

capacity is too small.

1. Check for possible poor insulation at the

output line.

2. Check for possible motor stall.

3. Replace the AC drive with one that has a

higher output capacity (next HP size).

The external terminal

EF-GND goes from OFF

to ON.

1. When external terminal EF-GND is

closed, the output will be turned off.

(Under N.O. E.F.)

2. Press RESET after fault has been

cleared.

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 178 179

Comments to this Manuals

No comments