Power Connection And Grounding (1). Connection Method Of Power Supply Cable - Siruba D007S Manual

3. Power Connection and Grounding:
(1). Connection method of power supply cable:
Single Phase Connection
The green/ yellow wire is the ground wire. System grounding works must be done properly.
Please contact qualified electrical engineering personnel to perform the works.
(2). When the configuration of the power supply system is three-phase, four-wire 380V,
the connection method in order to supply single-phase 220 V to the product is as
follows.
Caution:
Caution: Configuration of neutral (point) line is necessary
380 V
Neutral (point) line
(3).When wishing to use three-phase 220V voltage for single-phase 220 V servo motor,
care must be taken regarding the load balance in the configuration:
When connecting a considerable number of sewing machines in the configuration,
the balance of the R, S, and T phases among the three phases should be
considered as shown in the following figure:
If the system configuration does not have a 【neutral (point) line】 , the single-phase 220V servo motor
is not suitable for use in this place. Please reorder the three-phase 380V servo motor model from
the original supplier.
220 V
380 V
220 V
220 V
380 V
Grounding system
L2
L1 L1
G G
1ψ220V 1ψ220V
Motor Motor
5
Brown wire
Blue wire
Green/Yellow wire
L2
L2
L1
G
1ψ220V
Motor
R
S
T
N
PE