Photovoltaic Direct-driven Inverter VRF
45
4.8 External Electrical Wiring Diagram
(1) Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general,
circuit breaker is at OFF status.
(2) During operation, all indoor units and outdoor units belonging to the same system must be kept energi zed
status. Otherwise, the unit can’t operate normally.
4.8.1 External wiring diagram of a single unit
AC
DC POWER
AC
POWER
AC POWER 3
3
L1
L2
L3
IDU 1
L1 L2 L3
D1 D2 H1 H2
IDU n
L1 L2 L3
D1 D2 H1 H2
IDU 2
L1 L2
D1 D2 H1 H2
G
G
G
G
G
G
QF
QF
QF
master module
Wired controller
Wire
(resistance-matching)
COMMUNICATION
COMMUNICATION
COMMUNICATION
POWER
POWER
POWER
Communication cord
Power cord
Power cord
G
G
Wired controller
Wired controller
QF
QF
QF
QF
QF
PV 1+PV 1- PV 2+PV 2- PV 3+PV 3- PV 4+PV 4-
ODU 1
PV Array
Power cord
Remote monitor
D1 D2 G1 G2
COMMUNICATION
Fig.4.8.1
NOTICE!
Maximum number of IDU is based upon ODU capacity. For details, please refer
to the introduction of units’ combination.
Содержание GMV-Y120WM/C-F
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