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ROC800-Series Instruction Manual

3-2

Power Connections

Revised Jul-14

A

BAT+ / BAT–

B

CHG+ / CHG–

C

AUX+ / AUX–

D

AUX

SW

+ / AUX

SW

E

V

OK

LED

F

V

OFF

LED

G

V

OVER

LED

H

TEMP LED

Figure 3-1. 12 Volt dc Power Input Module

The CHG+ and CHG– terminals comprise an Analog Input channel that

allows you to monitor an external voltage between 0 to 18 Volts dc. For

example, you can connect a solar panel upstream of the solar regulator

to monitor the output of the solar panel. This allows you to compare the

System AI Point Number 2 for the charging voltage (CHG+) to the

actual battery voltage (BAT+) System AI Point Number 1 and take

action as required. The module has a low-voltage cut-off circuit built-in

to guard against draining power supply batteries. Refer to

Automatic

Self Tests

in

Chapter 1, General Information

.

Use the AUX+ / AUX– terminals to supply reverse polarity protected

source voltage to external devices, such as a radio or solenoid. Use the

AUX

SW

+ / AUX

SW

– terminals to provide switched power for external

devices. The AUX

SW

+ is turned off when the ROC800 detects a

software configurable voltage at the BAT+ / BAT– terminals.

Table 3-1

details the specific connection information for the 12 volt dc

(PM-12) Power Input module.

Table 3-2

indicates the LED fault

indicators.

E

F

G

H

A

B

C

D