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Chapter 3 Connections and Wiring|ASDA-B Series
3-2 Revision January 2009
3.1.2 Servo Drive Connectors and Terminals
Terminal
Identification
Terminal
Description
Notes
R, S, T
Main circuit terminal
The Main Circuit Terminal is used to supply the servo with
line power. If a single-phase supply, is used connect the R
and S terminals to power. If 3-phase, connect all three R, S,
& T terminals.
Used to connect servo motor
Terminal Symbol Wire Color
U Red
V White
W Black
U, V, W
FG
Servo motor output
FG Green
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.
P, D, C
Regenerative
resistor terminal
Only 750W and above servo drives are provided with built-
in regenerative resistors. Ensure to leave the circuit closed
between P and D when using a built-in (internal)
regenerative resistor.
two places
Ground terminal
Used to connect grounding wire of power supply and servo
motor.
CN1
I/O connector
Used to connect external controllers. Please refer to section
3.3 for details.
Used to connect encoder of servo motor. Please refer to
section 3.4 for details.
Terminal Symbol Wire Color
A Black
/A Black/Red
B White
/B White/Red
Z Orange
/Z Orange/Red
+5V Brown & Brown/White
CN2
Encoder connector
GND Blue & Blue/White
CN3
Communication
connector
Used to connect PC or keypad. Please refer to section 3.5
for details.
NOTE
1) U, V ,W , CN1, CN2, CN3 terminals provide short circuit protection.