85
7 Installation
Connecting the communication card
7.8.5 Connecting a ripple control receiver
Pin
Naming
Short cir-
cuit
Assigned action
1
V1
-
-
2
K0
V1 + K0
External power-off (EPO)
3
K1
V1 + K1
Maximum active power lim-
ited to 0 %
4
K2
V1 + K2
Maximum active power lim-
ited to 30 %
5
K3
V1 + K3
Maximum active power lim-
ited to 60 %
6
K4
V1 + K4
Maximum active power lim-
ited to 100%
7
K5
V1 + K5
Reserved
8
K6
V1 + K6
Reserved
Table 7.4.: Pin assignment of the terminal block with digital inputs
for connecting a ripple control receiver
Connection schema
Power limiting to:
Short circuit
0%
Terminals V1 and K1
30%
Terminals V1 and K2
60%
Terminals V1 and K3
100%
Terminals V1 and K4
R1
R2
R3
R4
V1 K0 K1 K2 K3 K4 K5 K6
Digital inputs
Ripple control receiver
Fig. 7.9:
Connection diagram for a ripple control receiver
7.8.6
Connecting the external power-off (EPO)
Pin assignments
Pin
Naming
Short cir-
cuit
Assigned action
1
V1
-
-
2
K0
V1 + K0
External power-off (EPO)
3
K1
V1 + K1
Maximum active power lim-
ited to 0%
4
K2
V1 + K2
Maximum active power lim-
ited to 30%
5
K3
V1 + K3
Maximum active power lim-
ited to 60%
6
K4
V1 + K4
Maximum active power lim-
ited to 100%
7
K5
V1 + K5
Reserved
8
K6
V1 + K6
Reserved
Table 7.5.: Pin assignment of the terminal block for the external
power-off
1. Connect the wires to the terminals V1 and K0.
2.
After commissioning, the relay for the external power-off
can be defined with Delta Service Software as a normally
closed or normally open contact.
Installation and Operation Manual for Solar Power Inverter M70A EU V2.0 EN 2020-08-03
