Table 2-11: Power Source Requirements Per Mode - ABB RMC-100 User Manual

IMPORTANT NOTE: The charger controller is a component on the RMC electronic board that
controls the battery charging process. The charger controller's design optimally controls the charge
and hold cycle for the battery. It prevents overcharging or complete draining of a battery. It
supports the three charge states: high current bulk charge, controlled over-charge, and a float
charge.
Figure 2-11: Battery mode with solar charger
12Vdc
Battery
BAT CHARGER/EXT PWR
Figure 2-12 illustrates the external power mode connection where an external power source supplies
the power to the RMC at the CHARGER/EXT PWR port. In this configuration, the external power supply
is the sole source of power to the controller.
Figure 2-12: External power mode
BAT CHARGER/EXT PWR
IMPORTANT NOTE: If you do not use ABB-approved power sources, verify that customer-
supplied power sources meet these requirements. For additional details about requirements, see
section 3.1 Site planning and

Table 2-11: Power source requirements per mode

Power mode Source type
Battery mode Battery charger:
(Battery and solar panel
charger)
Battery charger:
alternate charger
Battery
External External power
Power mode supply
2 4 | R MC-1 00 | 2 10 55 5 2MN A E
External
Power
Supply
requirements.
Requirement
Nominal:
12 Vdc,
20 W or less
Power source: 14.5
Vdc to 15.5 Vdc,
1.65 A
Nominal:
12 Vdc SLA,
30 Ah
Power source:
+9 Vdc to 30 Vdc, 5
A maximum
Solar
panel
Description
The solar panel charger provides power
to the RMC during daylight hours and
recharges the battery when the battery
power is low.
The charger provides power to the RMC
and recharges the battery when the
battery power is low.
Use Seal Lead Acid (SLA) batteries
only. The battery supplies 12 Vdc at the
BAT port.
The external power supply is the sole
supplier of power to the RMC in this
mode. The battery cannot be connected
when using an external power source.