Keypad Display Is Abnormal; Phase Loss (Phl) - Delta BLD-E1 Series User Manual

5.7 Keypad Display is Abnormal

Abnormal display or no display
Yes
Cycle power to br ushless DC
motor dr ive
Display normal?
Yes
Br us hless DC motor dri ve
works normally

5.8 Phase Loss (PHL)

Check wir ing at R, S and T terminals
Check if the sc rews of ter minal s ar e tightened
Check if the input voltage of R, S , T is unbalanced
Maybe br ushless DC motor dr ive has malfunc tion or
misoperation due to noise. Pleas e contact DELTA.
Revision May 2009, 00DE, V0.50
| BLD-E1 Series
No
Check if all connector s are c onnect
cor rectly and no noise is present
Br us hless DC motor dri ve has
malfunction. Please contac t DELTA.
Phase loss
Yes
Yes
No
Yes
No
No
No
Tighten all scr ews
Yes
Please check the wiring
and power system for
abnormal power
F ix c onnec tor and elimi nate noi se
Correc t wiring
5-5