Delta VFD-L Series - Page 76

VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
7-4
Fault
Name
Fault Descriptions
Corrective Actions
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
D
on’t use the function of auto acceleration
/
deceleration.
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.