Emerson ROC827 Wiring the DC Power Input Module, Volts dc Power Supply and BAT+ / BAT- Wiring

ROC827 Instruction Manual

The ROC827 should have a minimum of bare wire exposed to prevent short circuits. Allow some slack when making connections to prevent strain.

3.5.1 Wiring the DC Power Input Module

Use 12 American Wire Gauge (AWG) wire or smaller for all power wiring. It is important to use good wiring practice when sizing, routing, and connecting power wiring. All wiring must conform to state, local, and NEC codes.

Verify the hook-up polarity is correct. To make DC power supply connections:

1.Perform the backup procedure described in “Preserving Configuration and Log Data” in Chapter 6, Troubleshooting.

2.Install a surge protection device at the service disconnect.

3.Remove all other power sources from the ROC827.

4.Install a fuse at the input power source.

5.Remove the terminal block connector from the socket.

6.Insert each bared wire end from either the:

ƒ12 Volts dc source into the clamp beneath the appropriate BAT+ / BAT– termination screw.

ƒ24 Volts dc source into the clamp beneath the appropriate BAT+ / BAT– termination screw. The + terminal should have a similar fuse to the 12 Volts dc Power Input Module.

– CHG+ – BAT+

5 Amp Fuse

12 Volt DC Battery Bank AC to 12 Volt DC Power Supply

24 Volt DC/12 Volt DC Power Converter

Other 12 Volt DC Nominal Source

BATWIRE.DSF

Figure 3-5. 12 Volts dc Power Supply and BAT+ / BAT– Wiring

7.Screw each wire into the terminal block.

8.Plug the terminal block connector back into the socket.

9.If you are monitoring an external charge voltage (12 Volts dc Power Input Module only), wire the CHG+ and CHG– terminal block connector. Refer to Figure 3-6.

Issued Mar-06 Power Connections 3-22