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ROC827 Instruction Manual
Issued Mar-06 Power Connections 3-23
– CHG+ – BAT+
5 Amp Fuse
+
–
+
–
+
–
+
–
–
Batteries
809CHG.DSF
Solar
Regulator
Solar
Panel
+
–
5 Amp Fuse
Power Supply
Terminal Block
Figure 3-6. 12 Volt dc Power Supply and CHG+ and CHG– Wiring
10. Replace all other power sources (if necessary) to the ROC827.
11. Review “Restarting the ROC827” in Chapter 6, Troubleshooting.
Note: Refer to Table 3-2 concerning LEDs.
3.5.2 Wiring the External Batteries
You can use external batteries as the main source of power for the
ROC827 with the 12 volts dc Power Input module (PM-12). The
maximum voltage that can be applied to the BAT+ / BAT– terminals is
16 volts dc before damage may occur. The recommended maximum
voltage is 14.5 volts dc (refer to Table 3-2 concerning LEDs).
It is important that you use good wiring practices when sizing, routing,
and connecting power wiring. All wiring must conform to state, local, and
NEC codes. Use 12 American Wire Gauge (AWG) or smaller wire for all
power wiring.
Batteries should be rechargeable, sealed, gel-cell, lead-acid batteries.
Connect batteries in parallel to achieve the required capacity (refer to
Figure 3-6). The amount of battery capacity required for a particular
installation depends upon the power requirements of the equipment and
days of reserve (autonomy) desired. Calculate battery requirements based
on power consumption of the ROC827 and all devices powered by the
batteries.