Delta BLD-E1 Series 5.5 Over Heat (oH1) , 5.6 Overload

Chapter 4 ParametersAT |Troubleshooting}| BLD-E1 Series
5-4 Revision May 2009, 00DE, V0.50
5.5 Over Heat (oH1)
Brus hles s DC motor drive ov erheat s
Heat sink overheats
Check if tem perature of heat sink
i s gr eate r tha n 90
O
C
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Reduce load
No Tem perat ure det ec t ion m alf unc t ions .
Pleas e contac t DELT A.
If cool in g fan fu nction s nor mall y Change cooling fan
C hec k if c ooling f an is jam m ed Re mo ve obstruction
Check if surrounding temperature
is within specific ation
Adjust surrounding temperature
t o s pec if ic ation
M ay be brus hles s D C m ot or dr i v e has
m alfunc t ion or mis operation due to nois e.
Pleas e cont ac t D ELTA.
Is load too large
5.6 Overload
OL1/ OL2
OL
Reduce load or increase the power of brushless DC motor drive
Check if the settings of electric
thermal relay are correct
Yes
Yes
No
No Modify setting
Is load too large Maybe brushless DC motor drive has malfunction
or misoperation due to noise.