Over Heat (Oh); Overload - Delta VFD-E User Manual

Chapter 5 Troubleshooting|

5.5 Over Heat (OH)

AC motor drive ov erheats
Heat sink overheats
Chec k if temperature of heat sink
is greater than 90
Is load too large
If cooling fan functions normally
Chec k if cooling f an is jammed
Chec k if surrounding temperature
is within specification
Adjust surrounding temperature
to specification

5.6 Overload

OL
Reduce load or increase the power of AC motor drive
5-4
C
O
Yes
Yes
No
No
Yes
Yes
No
No
OL1/ OL2
Check for correct settings at
Pr. 06-06 and 06-07
Yes
Is load too large
Yes
No
Temperature detection malfunctions.
Please c ontact D ELTA.
Reduce load
Change cooling f an
Remove obstruct ion
Maybe AC motor drive has malfunction or
Yes
misoperation due to noise. Please contact
DELTA.
No
Maybe AC motor drive has malfunction
No
or misoperation due to noise.
Revision Jan. 2009, 06EE, SW--PW V1.12/CTL V2.12
Modify setting