Power Supply Type Settings For The Main Circuit And Control Circuit; Ac Power Supply Input/Dc Power Supply Input Setting - YASKAWA SGD7S Product Manual

5.3 Power Supply Type Settings for the Main Circuit and Control Circuit

5.3.1 AC Power Supply Input/DC Power Supply Input Setting

5.3

Power Supply Type Settings for the Main Circuit and Control Circuit

A SERVOPACK with a 200-VAC power supply input can be operated on either an AC power
supply input or DC power supply input to the main and control circuits. If you select an AC
power supply input, you can operate the SERVOPACK on either a single-phase power supply
input or a three-phase power supply input. This section describes the settings related to the
power supplies.
Important
5.3.1

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.
Example
Pn001
5-12
You cannot input DC power to a SERVOPACK with a single-phase, 100-VAC power supply input.
Examples of When an A.330 Alarm (Main Circuit Power Supply Wiring Error) Occurs
• A DC power supply is connected between the B1/
supply input is specified (Pn001 = n.0).
• An AC power supply is input to the L1, L2, and L3 terminals, but a DC power supply is
specified (Pn001 = n.1).
Parameter
 
n. 0
(default set- Use an AC power supply input.
ting)
 
n. 1 Use a DC power supply input.
 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/
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 regenera-
tive energy at the power supply.
 If you use a DC power supply input with any of the following SERVOPACKs, externally con-
nect an inrush current limiting circuit and use the power ON and OFF sequences recom-
mended 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.
4.3.3
Power ON Sequence
Meaning
WARNING
and 2 terminals and the L1C and L2C terminals on
on page 4-16
and 2 terminals, but an AC power
When Enabled Classification
After restart Setup