beautypg.com

2 connecting the inverter manager, 3 connecting the signal source, 4 connecting the i/o box to the voltage supply – SMA INVERTER MANAGER User Manual

Page 9: 4 data a (−)

background image

SMA Solar Technology AG / SMA America, LLC

4  SMA Digital I/O Box

Installation Manual

IMVIOBOX-IA-xx-10

9

4.3.2 Connecting the

Inverter Manager

Pin assignment of the terminal (RS485):

4.3.3 Connecting the Signal Source

Connection of a Signal Source with
Potential-Free Relay Contact

Connection of a Signal Source (10 V to 30 V)
with Digital Output Signals

4.3.4 Connecting the I/O Box to the

Voltage Supply

Connect the 12 to 36 V DC connection cable to the terminal
for the voltage supply. Connect the grounding of the
connection cable to the "V-" terminal and connect the
grounding pin if grounding is present.

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

Pin

Assignment

D1+

---

D1-

---

GND

GND

D2+

DataA(+)

D2-

DataB(-)

Position

Designation

5 GND

3 Data B (+)

4 Data A (−)

COM0
DI0
DI1
DI2
DI3

DI4
DI5
DI6
DI7
COM1
DIO0
DIO1
DIO2
DIO3
GND
DIO4
DIO5
DIO6
DIO7

GND

COM0
DI0
DI1
DI2
DI3

DI4
DI5

GND

Dry Contact:
closed: DI0 = off
open: DI0 = on

Pin

Assignment

V-

Voltage Supply

V+

+24 VDC Nominal (+12 VDC to 36 VDC)

Diameter of the leads
For safety reasons, the leads for the electricity
supply must have a diameter of at least 2 mm².

COM0
DI0
DI1
DI2
DI3

DI4
DI5
DI6
DI7
COM1
DIO0
DIO1
DIO2
DIO3
GND
DIO4
DIO5
DIO6
DIO7

GND

COM0
DI0
DI1
DI2
DI3

DI4
DI5

GND

Wet Contact:

0 V ... 3 V = off

10 V ... 30 V = on

U

U

10 V ... 30 V

V-

V+

This manual is related to the following products: