4 I/O Box
4.3.4 Connecting the I/O Box to the
Voltage Supply
Connect the 12 Vdc to 36 Vdc connection line with the
terminal for the voltage supply. Connect the grounding of
the connection line to the "V" terminal and connect the
grounding pin (GND) if grounding is present.
Pin
Assignment
V- / V+ Voltage supply 24 Vdc
(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.
4.3.5 LED Signals of the I/O Box
LED
State
Power
Glowing
yellow
Off
Ready
Glowing
green
Green is
flashing once
per second
Flashing
green every
0.5 seconds
Flashing
green
Off
Port 1
Flashing
green
22
IMVIOBOX-IA-xx-19
Explanation
The I/O Box is in operation.
The I/O Box is not in operation.
The system is ready for
operation.
The "detect" function was
triggered.
Firmware is being updated.
When the green LED is on for
five seconds and then goes off
for five seconds, it means that
the system is in "Safe Mode".
The system is not ready for
operation.
Data is being sent or received.
LED
State
Port 2
Flashing
yellow
4.4 Technical Data
System data
Power supply
Cabling
Dimensions
Weight
Operating temperature
range
Storage temperature
Relative humidity,
non-condensing
Operating height
Industry standards and
certifications
Digital input
Sensor type
I/O mode
Potential-free contact
Wet contact (DI to COM)
Insulation voltage
Counter/Frequency
SMA Solar Technology AG
Explanation
Data is being sent or received.
24 Vdc nominal,
12 Vdc to 36 Vdc
I/O signal cable
max. 1.5 mm²
(16 AWG)
27.8 mm x 124 mm x
84 mm (1.09 in x 4.88 in x
3.31 in)
< 200 g
Standard module:
-10°C to +75°C
(14°F to 167°F)
-40°C to +85°C
(-40°F to 185°F)
5% to 95%
< 2000 m
UL 508, CE, FCC Class A
Potential-free contact (NPN
or PNP); wet contact
DI or event counter
On = ground fault
Off = open
On = 10 Vdc to 30 Vdc
Off = 0 Vdc to 3 Vdc
3000 Vdc or 2000 Veff
250 Hz, memory in off-state
Installation Manual