2-45
2-4 Basic block diagram of servo system
§ JSDG2S-10A ~ JSDG2S-15A (Built-in regenerative resistor)
R
S
T
Surge
absorber
Rectifier
circuit
CHANGE
+
P+ PC P1
N-
U
V
W
Encoder
Servo motor
CPU
(Control unit)
Panel operator
r
s
Surge
absorber
+
Control
power
M
Temperature
dete cti on
Relay
drive
Gate
drive
Current
detection
Voltage
detection
CN2
Gate drive
Optical
scale
CN8
CN1
CN3
PC
PLC
CN5/CN6
EtherCAT
CANopen
Varies according to the
mo del number
CN4
RS-485
Regenerative
processing circuit
Dynamic
brakes
GATE
DRIVE
Rectifier
circuit
Note 1: CANopen is a function for the JSDG2S model only.
Note 2: EtherCAT is a function for the JSDG2S-E and JSDG2S-EL models only.
Note 3: Prepare the regenerative resistor by yourself; during installation, the wiring between the PC
contact and the P1 contact of the TB1 terminal must be removed. Then connect the
regenerative resistor between the P contact and PC contact, refer to “5-6-7 Choosing an
external regenerative resistor” for details.
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