Yaskawa SGDH Linear Sigma Series - Manual (Page 184)

7 Wiring
7.2.3 Typical Main Circuit Wiring Examples
7-20
(3) Three-phase 400 V
„ Designing a Power ON Sequence
Note the following points when designing the power ON sequence.
• Design the power ON sequence so that main circuit power supply is turned OFF when a servo alarm signal
is output. See the previous circuit figure.
• When designing the power ON sequence, note that the SERVOPACK will output (1Ry is OFF) a servo
alarm signal for two seconds or less when the control power is turned ON. And, use this relay to turn OFF
the main power supply to the SERVOPACK
.
• Select the power supply specifications for the parts in accordance with the input power supply.
„ Harmonic Suppression
If another device requires for harmonic suppression, connect the DC reactor to the DC main circuit side on
the SERVOPACK. For connecting examples, refer to 7.5.5 DC Reactor for Harmonic Suppression.
L1
24V
24-VDC
power supply
+ −
SGDH-††DE
0 V 24
1Ry
ALM+
ALM −
31
32
1D
1KM
1Ry 1KM
1SUP
1Ry
1KM
L2
L3
B2
B3
0V
CN1
1QF
R S T
1PL
1QF
FIL
1KM
FIL
+24V
+ 1
+ 2
U
V
W
M
PG
SERVOPACK
(For servo
alarm display)
OFF ON
Main circuit
power supply
Main circuit
power supply
: Molded-case circuit breaker
: Noise filter
: Magnetic contactor
: Indicator lamp
: Surge suppressor
: Flyweel diode 1PL
1SUP
1D
1Ry : Relay
Serial
converter
unit
Linear servomotor
Linear scale
Properly treat the end of shielded wire.
IMPORTANT
Control power
supply
Servo alarm (ALM)
output signal
2.0 s max.