Delta VFD110B43A User Manual

Chapter 7 Troubleshooting _VFD-B Series
7-4
Revision 10/2005, BE13, SW V4.08
7.5 Over Heat (OH)
AC motor drive overheats
Heat sink overheats
Check if temperature of heat sink
is larger than 90
O
C
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Reduce load
No
Temperature detection malfunctions.
Please contact with DELTA.
If cooling fan functions normally
Change cooling fan
Check if cooling fan is jammed
Remove
obstruction
Check if surrounding temperature
is within specification
Adjust surrounding temperature
to specification
Maybe AC motor drive has malfunction or
misoperation due to noise. Please contact
with DELTA.
If load is too large
7.6 Overload
OL1/ OL2
OL
Reduce load or increase the power of AC motor drive
Check if the setting of electronic
thermal relay is suitable
Yes
Yes
No
No
Modify setting
If load is too large
Maybe AC motor drive has malfunction
or misoperation due to noise.

Delta VFD110B43A Specifications

General

Brand	Delta
Model	VFD110B43A
Category	DC Drives
Language	English