Global LP 8970 I Series Manual page 121

II. Power Connection and Grounding
(1). Single phase and three phase connection :
Single Phase
Three Phase
1. When a control box used on single phase 200 ~ 240 V power, only connect brown
and blue wires. Use insulating tape to wrap up the black wire, in order to prevent the current leakage.
2. Green / Yellow wire must do the grounding.
(2). How to connect a 1Φ / 220 V power from a 3 Φ / 380 V power source
Caution：
380 V
Neutral
(3). Please consider R.S.T balance when connecting to several sewing machine.
Green/yellow wire is the ground wire
PVC Cable
To control box
If the power source does not have the neutral point, then this control box is not
suitable for this connection.
Caution: Must have a Neutral point
220 V
380 V
220 V
220 V
380 V
Grounding system
L2
L1 L1
G G
1ψ220V
1ψ220V
Control box
Control box
4
Brown wire
Blue wire
Green / Yellow wire
Brown
If use on single phase
Black
(220 V), don't connect
the black wire.
Blue
L2
L2
L1
G
1ψ220V
Control box
Green / Yellow
R
S
T
N
PE