Delta BLD-E1 brushless DC motor drive BLD-E1 Series - Manual (Page 31)

Chapter 2 Installation and Wiring| BLD-E1 Series
2-12 Revision May 2009, 00DE, V0.50
Terminal
Symbol
Terminal Function
Factory Settings (NPN mode)
ON: Connect to DCM
AVI
Analog voltage Input
Impedance: 20kΩ
Resolution: 10 bits
Range: 0 ~ 10VDC =
0 ~ Max. Output Speed (Pr.01-00)
ACI
Analog current Input
Impedance: 250Ω/100kΩ
Resolution: 10 bits
Range: 4 ~ 20mA =
0 ~ Max. Output Speed(Pr.01-00)
ACM
Analog control signal
(common)
Common for AVI and ACI
NOTE: Control signal wiring size: 18 AWG (0.75 mm 2 ) with shielded wire
Analog inputs (AVI, ACI, ACM)
„ Analog input signals are easily affected by external noise. Use shielded wiring and keep it
as short as possible (<20m) with proper grounding. If the noise is inductive, connecting
the shield to terminal ACM can bring improvement.
„ If the analog input signals are affected by noise from the brushless DC motor drive,
please connect a capacitor and ferrite core as indicated in the following diagrams:
C
AVI/ACI
ACM
ferrite core
wind each wires 3 times or more around the core
ACM
AVI
+10V
internal circuit
ACM
ACI
DC
internal circuit