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SMA Solar Technology AG
4 Product Overview
4.1
SMA I/O modules
The SMA I/O Module is a module with 6 digital inputs and 1 digital output operating as a multifunction relay. The
SMA I/O Module enables the implementation of grid management services for up to 12 SMA inverters in a network
with the same system password. The SMA I/O Module must be installed in one SMA inverter. For the implementation
of grid management services, the SMA I/O Module receives the specifications of the grid operator via a ripple control
receiver. The SMA I/O Module transmits the specifications of the grid operator via Speedwire network to a maximum
of 11 further SMA inverters. The multifunction relay can be configured for various operating modes. The multifunction
relay can, for example, be used for switching fault indicators on and off.
Design of the module
Figure 2: Design of the module
Position
Designation
A
B
C
D
E
4.2
Type Label
The type label clearly identifies the product. The type label is located on the front of the product.
Figure 3: Design of the type label
Position
A
Installation manual
D
Explanation
–
Opening for the fastening screw
–
Openings for the guide pins of the communication assembly
OUTPUT
Multifunction Relay Connection
INPUT
Terminals for ripple control receiver
–
Connector strip on the back of the module for connection to the com-
munication assembly in the inverter
A
B
C
Explanation
Device type
A
E
B
C
PC-PWC.BG1
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4 Product Overview
MD-IO-40-IA-en-11
9
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