SMA Inverter Manager - Page 11

SMA Solar Technology AG 4 I/O Box
Installation Manual IMVIOBOX-IA-xx-16 11
4.2 Mounting the I/O Box
4.2.1 Option 1: Wall Mounting
4.2.2 Option 2: Mounting on Top-Hat
Rail
4.3 Connection to the I/O Box
4.3.1 Overview
Figure 7: Overview of the connection to the I/O Box
4.3.2 Connecting the
Inverter
Manager
Pin assignment of the RS485 terminal
(see Section 3.3.5, page 8):
C 1 Quick reference guide for
installation
Damage to the products and cables due to moisture
The Inverter Manager and the I/O Box are not protected
against splash water. Consequently, moisture can
penetrate the device and damage the products and
cables.
• The Inverter Manager and the I/O Box must be
installed in a dry environment, e.g. indoors or in a
splash-proof enclosure (degree of protection: at least
IP54 (NEMA 3R)).
Item Quantity Designation
1
2
1
2
3
Item Designation
A Digital inputs for connecting a signal source
(inputs DI0 to DI5 can be assigned; all
other inputs have no function)
B Maintain the default setting: X1 = 1,
X10 = 0
C Connection of the Inverter Manager
D Connection of the electricity supply
E Maintain the default setting: 1 = Dual,
2 = Initial
Do not connect during operation
Do not connect the I/O Box to the Inverter Manager
during operation. Errors might occur that cannot be
detected immediately.
• Disconnect the Inverter Manager from voltage
sources.
• Connect the I/O Box with the Inverter Manager.
• Reconnect the Inverter Manager to the voltage
supply.
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
D1+
D1-
GND
D2+
D2-
P1
P2
V+
V-
X10
X1
Dual
Run
Rep
Initial
COM0
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
COM1
DIO0
DIO1
DIO2
DIO3
GND
DIO4
DIO5
DIO6
DIO7
GND
A
C
D
COM0
DI0
DI1
DI2
DI3
DI4
DI5
GND
B
E