Typical Main Circuit Wiring Examples - YASKAWA E-V Series User Manual

3.3.3

Typical Main Circuit Wiring Examples

The following wiring examples show the DC Power Input Σ-V Series SGDV SER-
VOPACK (Analog voltage reference model).
 SGDV-ES1A ( = 1R7, 2R9)
R T
1QF
1FLT
Servo
power
supply
ON
1KM
1QF : Molded-case circuit breaker
1FLT : Noise filter
1KM : Magnetic contactor
• Use a molded-case circuit breaker (1QF) or fuse to protect the
servo system.
Always use a molded-case circuit breaker (1QF) or fuse to pro-
tect the servo system from accidents involving different power
system voltages or other accidents.
• Install a ground fault detector.
The SERVOPACK does not have a built-in protective circuit for
grounding.
To configure a safer system, install a ground fault detector
against overloads and short-circuiting, or install a ground fault
detector combined with a molded-case circuit breaker.
• Do not frequently turn power ON and OFF.
• Frequently turning power ON and OFF causes elements
inside the SERVOPACK to deteriorate. Do not use the servo
drive with an application that requires frequently turning power
ON and OFF.
• After the actual operation starts, the allowable interval for turn-
ing power ON and OFF is one hour or longer.
Insulated AC/DC
converter for main
circuit power supply
1KM
Insulated AC/DC
converter for control
circuit power supply
(For servo
alarm display)
1Ry
1PL
Servo
power
supply
OFF
1KM
1Ry
1SA
(for main power supply)
SGDV SERVOPACK
CN4
U
V
CN3
W
L1
L2
C1
C2
FG
CN1
ALM
8
11 COM_SG
1Ry : Relay
1PL : Indicator lamp
1SA : Surge absorber
1D : Flywheel diode
3.3 Main Circuit Wiring
M
ENC
+24 V
1Ry
1D 0 V
3
3-9