6.2 Power Supply Type Settings for the Main Circuit
6-12
6.2
Power Supply Type Settings for the Main Circuit
A SERVOPACK can operate on either an AC power supply input or DC power supply input to
the main circuits. This section describes the settings related to the power supply.
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.
Refer to the following section for information on wiring the SERVOPACK.
4.3.4 Power Supply Wiring Diagrams
Examples of When an A.330 Alarm (Main Circuit Power Supply Wiring Error) Occurs
•
A DC power supply is connected betwee
n the B1 and
2 termi
nals, but an AC power sup-
ply 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
Meaning
When Enabled
Classification
Pn001
(2001h)
n.
0
(default set-
ting)
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 on the SERVOPACK.
•
Connect a DC power supply to the B1 and
2 terminals and the 24 V and 0 V 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 regenera-
tive energy at the power supply.
Example
