YASKAWA Sigma-7 SGD7S Series - 6.3.2 AC Power Supply Input;DC Power Supply Input Setting

6.3.2 AC Power Supply Input/DC Power Supply Input Setting
Set Pn001 = n.X (Main Circuit Power Supply AC/DC Input Selection) to specify
whether to use an AC or DC power supply input for the main circuit power supply to the
SERVOPACK.
If the setting of Pn001 = n.X does not agree with the actual power supply input, an
A.330 alarm (Main Circuit Power Supply Wiring Error) will occur.
Examples of When an A.330 Alarm (Main Circuit Power Supply Wiring Error) Occurs
n A DC power supply is connected between the B1/ and 2 terminals, but an AC
power supply input is specified (Pn001 = n.0).
n An AC power supply is input to the L1, L2, and L3 terminals, but a DC power
supply is specified (Pn001 = n.1).
Example
Parameter Meaning When Enabled Classification
Pn001
n.0
(default
setting)
Use an AC power supply
input.
After restart Setup
n.1
Use a DC power supply
input.
WARNING!
– Connect the AC or DC power supplies to the specified SERVOPACK
terminals.
– Connect an AC power supply to the L1, L2, and L3 terminals and
the L1C and L2C terminals on the SERVOPACK.
– Connect a DC power supply to the B1/ and 2 terminals and
the L1C and L2C terminals on the SERVOPACK.
There is a risk of failure or fire.
– Always specify a DC power supply input (Pn001 = n.1) before
you input DC power for the main circuit power supply.
If you input DC power without specifying a DC power supply input
(i.e., without setting Pn001 to n.1), the SERVOPACK’s internal
elements may burn and may cause fire or damage to the equipment.
– With a DC power supply input, time is required to discharge electricity
after the main power supply is turned OFF. A high residual voltage
may remain in the SERVOPACK after the power supply is turned
OFF. Be careful not to get an electric shock.
– Install fuses on the power supply line if you use DC power.
– The Servomotor returns regenerative energy to the power supply. If
you use a SERVOPACK with a DC power supply input, regenerative
energy is not processed. Process the regenerative energy at the
power supply.
– If you use a DC power supply input with any of the following SERVO-
PACKs, externally connect an inrush current limiting circuit and use
the power ON and OFF sequences recommended by Yaskawa:
SGD7S-330A, -470A, -550A, -590A, or -780A.
There is a risk of equipment damage.
Refer to the following section for the power ON and OFF sequences.
Ä Chap. 5.4.4 ‘Power ON Sequence’ page 97
Refer to the following section for information on wiring the SERVOPACK.
Ä Chap. 5.4.5 ‘Power Supply Wiring Diagrams’ page 98
Sigma-7 Series SERVOPACKs
Basic Functions That Require Setting before Operation
Power Supply Type Settings for the Main Circuit and Control Circuit > AC Power Supply Input/DC Power Supply Input Setting
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