Delta BLD-E1 Series User Manual page 31

Chapter 2 Installation and Wiring| BLD-E1 Series
Terminal
Terminal Function
Symbol
Analog voltage Input
AVI
Analog current Input
ACI
DC
Analog control signal
ACM
(common)
NOTE: Control signal wiring size: 18 AWG (0.75 mm
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:
2-12
+10V
AVI
ACM
internal circuit
ACI
ACM
internal circuit
wind each wires 3 times or more around the core
Factory Settings (NPN mode)
ON: Connect to DCM
Impedance: 20kΩ
Resolution: 10 bits
Range: 0 ~ 10VDC =
0 ~ Max. Output Speed (Pr.01-00)
Impedance: 250Ω/100kΩ
Resolution: 10 bits
Range: 4 ~ 20mA =
0 ~ Max. Output Speed(Pr.01-00)
Common for AVI and ACI
2
) with shielded wire
AVI/ACI
C
ACM
ferrite core
Revision May 2009, 00DE, V0.50