Power With External Power; Figure 5-2: Solar Panel Connection - ABB RMC-100 Startup Manual

listed on the last page of this guide for questions about mounting the solar panel on the top or side of a
meter house.
NOTICE – Equipment damage. Alternate installations could use a power source instead of a solar
panel charger. When using a power source, the output must be 14.5 Vdc to 15.5 Vdc maximum as
described in section 2.2.
Failure to use chargers that meet the required voltage specifications may cause equipment
damage.
Exercise caution when handling the solar panel to avoid damaging it.
For optimum charging, avoid placing the solar panel where it will be in shadows for any part of the day.
The hardware required to connect the solar panel to the RMC is:
 One solar panel with an integrated cable
 One solar panel mounting kit
NOTICE – Equipment damage. Never connect the solar panel or alternate charger cable to the
RMC before the battery is connected to the BAT port
To connect the solar panel charger (adapt instructions if connecting to a power source as a charger):
1. Verify that the solar panel is operating properly before installation:
a. Check the solar panel using a digital voltmeter to verify polarity and output voltage. Voltage
varies depending on the amount of sun, angle to sun, etc.
b. If the measured output voltage is within the manufacturer's specification as defined by the
specification sheet supplied with the panel, continue with the installation.
c. If the measured voltage is out of specification, call the ABB main office number listed on the
last page of this guide for a replacement panel.
2. Connect the solar panel cable to the CHARGER/EXT PWR terminals as shown in
Observe the polarity (+ and -).

Figure 5-2: Solar panel connection

BAT CHARGER/EXT PWR
3. Mount the solar panel facing up from the horizon at a 50°angle. For northern hemispheres,
position the solar panel facing south. For southern hemispheres, position the solar panel facing
north.
Clean the solar panel on a regular basis to ensure maximum charging.
Continue to section 5.4 Lithium
5.3

Power with external power

The controller can be powered from an external power supply (9 to 30 Vdc).
IMPORTANT NOTE: Make sure that the external power supply meets the specifications
given in section 2.3.
Solar
panel
battery.
(Figure 5-1).
2105551M NAD | RM C-100 | 19
Figure 5-2.