YASKAWA Sigma-7 SGD7S Series

n Design the power ON sequence so that main circuit power supply is turned OFF
when an ALM (Servo Alarm) signal is output.
n Make sure that the power supply specifications of all parts are suitable for the input
power supply.
n Allow at least 1 s after the power supply is turned OFF before you turn it ON again.
Turn ON the control power supply before the main circuit power supply or
turn ON the control power supply and the main circuit power supply at the
same time.
Turn OFF the main circuit power supply first, and then turn OFF the con-
trol power supply.
WARNING!
Even after you turn OFF the power supply, a high residual voltage
may still remain in the SERVOPACK. To prevent electric shock, do
not touch the power supply terminals after you turn OFF the power.
When the voltage is discharged, the CHARGE indicator will turn
OFF. Make sure the CHARGE indicator is OFF before you start
wiring or inspection work.
5.4.5 Power Supply Wiring Diagrams
5.4.5.1 Using Only One SERVOPACK
2KM
L1
0 V
1Ry
+
-
3
4
1D
B2
B3
L2
CN1
1KM
L1C
L3
L2C
1QF
R
S T
1FLT
+24 V
1
2
3SA
B1/
1PL
1KM
2KM
1SA
2SA
1KM
1Ry
1KM
ALM
ALM
1Ry
SERVOPACK
(For servo alarm
display)
Servo power
ON
Servo power
OFF
1QF: Molded-case circuit breaker
1FLT: Noise Filter
1KM: Magnetic Contactor
(for control power supply)
2KM: Magnetic Contactor
(for main circuit power supply)
1Ry: Relay
1PL: Indicator lamp
1SA: Surge Absorber
2SA: Surge Absorber
3SA: Surge Absorber
1D: Flywheel diode
*1
*2
Fig. 52: Wiring Example for Three-Phase, 200-VAC Power Supply Input - 1
*1 You do not have to connect B2 and B3 for the following models: SGD7S-R70A,
SGD7S-R90A, SGD7S-1R6A, and SGD7S-2R8A. Do not connect them.
*2 A SGD7S-330A SERVOPACK does not have a - terminal.
Wiring Example for Three-
Phase, 200-VAC Power
Supply Input: SGD7S-
R70A, -R90A, -1R6A,
-2R8A, -3R8A, -5R5A,
-7R6A, -120A, -180A,
-200A, and -330A
Sigma-7 Series SERVOPACKs
Wiring and Connecting SERVOPACKs
Wiring the Power Supply to the SERVOPACK > Power Supply Wiring Diagrams
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