Chapter 3 Connections and Wiring
ASDA-B2
3-2
Revision September 2013
3.1.2 Servo Drive Connectors and Terminals
Terminal
Identification
Terminal
Description
Notes
L1c, L2c
Control circuit
terminal
Used to connect single-phase AC control circuit
power. (Control circuit uses the same voltage as the
main circuit.)
R, S, T
Main circuit
terminal
Used to connect single-phase or three-phase AC main
circuit power depending on connecting servo drive
model.
U, V, W
FG (
)
Servo motor
output
Used to connect servo motor
Terminal
Symbol
Wire Color
Description
U Red
Connecting to
three-phase
motor main
circuit cable.
V White
W Black
FG(
)
Green
Connecting to
ground terminal
(
) of the
servo drive.
P , D, C,
Regenerative
resistor terminal
or braking unit
Internal resistor
Ensure the circuit is closed between
P and D, and the circuit is open
between P and C.
External resistor
Connect regenerative resistor to P
and C, and ensure an open circuit
between P and D.
External braking
unit
Connect braking unit to P and ,
and ensure an open circuit between
P and D, and P and C.
(N terminal is built in L1c, L2c, ,
and R, S, T.)
P :
Connecting to (+) terminal of
V_BUS voltage.
: Connecting to (-) terminal of
V_BUS voltage.
two places
Ground terminal
Used to connect grounding wire of power supply and
servo motor.
Terminal
Identification
Terminal
Description
Notes
CN1
I/O connector
Used to connect external controllers. Please refer to
section 3.3 for details.
CN2
Encoder
connector
Used to connect encoder of servo motor. Please refer
to section 3.4 for details.
VARITEL INGENIERIA ELECTRONICA S.A.
info@varitel.com - www.varitel.com - Tel. (54) 11-4243-1171 / Fax: (54) 11-4292-7545
Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.
