MAN-01-00028-1.1
4
Appendix A – Multiple SolarEdge Devices, RS485 Bus and GSM Modem Connection
This configuration enables you to connect multiple
SolarEdge devices through the same bus in a master/slave
configuration. In this configuration, only the master is
physically connected to the Internet through the GSM
modem.
Recommended Cable Type and Distance:
RS232:
Cable Type:
Supplied with kit.
Max. Distance:
15 m / 50 ft (supplied cable plus
extension).
RS485:
Cable Type:
Four-conductor cable (with RJ11
connectors for older communication board
versions).
Max. Distance:
1,000 m / 3,000 ft
(from the
master SolarEdge device).
Figure 5: Connecting Multiple SolarEdge devices
Additional Required Equipment:
Four-conductor cable (not supplied by SolarEdge).
This section assumes that GSM modem communication is already
configured, as described above.
►
RS485 bus terminations:
The two SolarEdge devices at the ends of the chain (meaning the first
SolarEdge device and the last SolarEdge device) must be terminated by
switching a termination dip-switch inside the SolarEdge device to ON.
The switch is marked
SW7
, as shown in Figure 6.
►
Configuring the SolarEdge devices using the user
buttons:
1
First, configure the GSM cellular modem connection, as described
above.
For each of the slave SolarEdge devices, perform the remaining
steps in this procedure.
Figure 6: RS485 Termination Switch
2
Verify that the SolarEdge device’s ON/OFF switch is OFF.
3
Press the LCD Light button once to turn ON the backlight.
WARNING!
If the SolarEdge device worked properly before this action, the adjacent message
is displayed.
This message is displayed until the DC is safe. The default safety voltage is 50 V.
Do not open the cover or open DC connectors until the voltage is indicated as
safe or until at least five minutes have passed.
4
Short press the LCD button to scroll through the
informative screens to show the ID status window and
verify the CPU firmware version. Verify whether it is
below or above version 2.250.
I D : # # # # # # # # # #
D S P 1 / 2 : 1 . 0 2 1 0 / 1 . 0 0 3 4
C P U : 0 0 0 2 . 0 2 5 0
C o u n t r y : U S A
5
The following configuration procedures are performed
with the SolarEdge device cover open.
Four buttons for controlling the LCD panel menus are
then accessible, as shown in Figure 4.
Esc:
Goes to the beginning of the currently entered
parameter or to the previous menu.
Up
(1):
Goes up one option in a menu.
Down
(2):
Goes down one option in a menu.
Enter (3):
Confirms the entry or selection of a
parameter.
6
Press the
Enter
button for at least five seconds. The
following message is displayed:
P l e a s e e n t e r
P a s s w o r d
* * * * * * * *
The SolarEdge device is now in Setup mode and all its
LEDs are lit. The SolarEdge device automatically exits
Setup mode if no buttons are pressed for more than two
minutes.
Use the left switch
