SMA PPM-10 - Connecting a Redundancy Connector

6 Electrical Connection
SMA Solar Technology AG
Installation ManualPPM-10-IA-en-1654
☐ Maximum conductor cross-section with bootlace ferrule: 1.5mm² (16AWG)
Procedure:
1. Insert the cable into the product (see Section6.10.1, page55).
2. Connect the insulated conductors to terminal X704 of PPMA as shown in the provided circuitry diagram.
Pretension the springs of the spring-cage terminals with a screwdriver if stranded wires are used (see
Section6.10.2, page56).
3. Connect the insulated conductors to terminal X704 of PPMB as shown in the provided circuitry diagram.
Pretension the springs of the spring-cage terminals with a screwdriver if stranded wires are used (see
Section6.10.2, page56).
4. Ensure that the insulated conductors are firmly in place.
6.9.2 Connecting a Redundancy Connector
The Redundancy Connector is used to connect 2 redundant PowerPlantManagers to a higher-level control system
(such as a SCADA system).
Both PowerPlantManagers must be connected to the Redundancy Connector as described in this section.
The following table shows the configuration of the inputs at terminal block X704 for the connecting to the Redundancy
Connector.
Terminal Input Function
X704:1 GND Provided for connecting the redundant PowerPlantManager (see Sec-
tion6.9.1, page53)
X704:2 DIO1
X704:3 GND Change-over requirement of PowerPlantManagerA for the Redundancy
Connector
X704:4 DIO2
X704:5 24V Feedback 1 of the Redundancy Connector to the PowerPlantManager
X704:6 DIO3
X704:7 24V Feedback 2 of the Redundancy Connector to the PowerPlantManager
X704:8 DIO4
X704:9 24V external Provided for connecting the redundant PowerPlantManager (see Sec-
tion6.9.1, page53)
X704:10 GND external
Cable requirements:
☐ Conductor cross-section: 0.5mm² to 1.5mm² (21AWG to 16AWG)
☐ Maximum conductor cross-section with bootlace ferrule: 1.5mm² (16AWG)
Procedure:
1. Insert the cable into the product (see Section6.10.1, page55).
2. Connect the insulated conductors to terminal X704 of PPMA as shown in the provided circuitry diagram.
Pretension the springs of the spring-cage terminals with a screwdriver if stranded wires are used (see
Section6.10.2, page56).
3. Connect the insulated conductors to terminal X704 of PPMB as shown in the provided circuitry diagram.
Pretension the springs of the spring-cage terminals with a screwdriver if stranded wires are used (see
Section6.10.2, page56).
4. Ensure that the insulated conductors are firmly in place.