Mitsubishi Electric GT1685 Connection Manual page 515

Model name Hardware version
B or later
GT1030-L D
GT1030-H D
A or earlier
E or later
GT1020-L D
D or earlier
Number of connectable
Inverter
31
10
31
10
15. INVERTER CONNECTION
15.2 System Configuration
9
10
11
12
13
14
15
16
15 - 5