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©
2017 Sensata Technologies
Parallel Operation
REMOTE cables
from router to
each inverter’s
Remote Port
(blue)
#3
MS-PAE
I
NVERTER
(S
LAVE
2)
#2
MS-PAE
I
NVERTER
(S
LAVE
1)
#4
MS-PAE
I
NVERTER
(S
LAVE
3)
#1
MS-PAE
I
NVERTER
(M
ASTER
)
STACK cables
from router to
each inverter’s
Stack Port (red)
MS4024PAE Master
Inverting
23.4VDC 0ADC
P1 INV Home
MA
SL1
SL2
SL3
P1
P2
P3
P4 P5
P6
MS4024PAE Inverter
Searching
29.3VDC 0ADC
P3 INV Home
MS4024PAE Slave
Inverter Standby
23.4VDC 0ADC
P2 INV Home
Master Inverter
(stacked)
Slave Inverter
(stacked)
Standalone Inverter
(not stacked)
Figure 4-5, ME-RTR (Port) Master/Slave Displays
CAUTION:
If there is a communication issue, the ME-RTR’s top line will show the
inverter’s status (e.g., Off, Inverting, Searching) rather than identifying that port’s
connected inverter as a master or slave unit. In that case, the router mistakes the unit
as a standalone inverter, will not sync properly, and may result in damage to that unit—
possibly causing damage to the other inverters in the system as well.