Emerson ROC827 User Manual

ROC800-Series Instruction Manual
Revised July-2017 Power Connections 3-3
Table 3-1. 12 Volt dc Power Input Terminal Block Connections
Terminal Blocks
Definition
Volts DC
BAT+ and BAT–
Accepts 12 Volts dc nominal from an
AC/DC converter or other 12 Volts dc
supply.
 Maximum Range: 11.5 to 16 Volts dc
 Recommended Operating Range: 11.5
to 14.5 Volts dc
CHG+ and CHG–
Analog Input used to monitor an external
charging source.
 0 to 18 Volts dc
AUX+ and AUX–
Supplies reverse polarity protected source
voltage to external devices. Fused.
 0 to 14.25 Volts dc
AUX
SW
+ and AUX
SW
–
Supplies switched power for external
devices.
 0 to 14.25 Volts dc
Table 3-2. 12 Volt DC Power Input LED Indicators
Signal
LED
V
OK
Green LED on when voltage is in tolerance on BAT+ and BAT–.
V
OFF
Fault – Red LED on when the AUX
SW
+ output are disabled by
the CPU control line.
V
OVER
Fault – Red LED on when AUX
SW
+ is disabled due to excess
voltage on BAT+.
TEMP
Fault – Red LED on when AUX
SW
+ output are disabled due to
the excess temperature of the Power Input module.
3.1.2 24-Volt DC Power Input Module (PM-24)
Using the PM-24, the ROC800 can accept 24 Volts dc (nominal) input
power from an AC/DC converter or other 24 Volts dc supply connected
to the + and – terminals. Connect the input power to either or both of
the + and – channels. The 24 V dc Power Input module (PM-24) does
not have CHG terminals for monitoring a charging voltage, and does
not monitor the input voltage for alarming, sleep mode, or other
monitoring purposes. The module has two LEDs that indicate voltage is
received at the backplane and the CPU (see Figure 3-2 and Tables 3-3
and 3-4).
The Power Input module uses 3.3 Volts dc switching power to provide
power to the I/O and communications modules installed in the ROC800
and any expanded backplanes. With this Power Input module installed,
the ROC800 requires 20 to 30 Volts dc for proper operation.
Use the AUX+ and AUX– terminals to supply reverse polarity protected
source voltage to external devices, such as a radio or solenoid.

Emerson ROC827 Specifications

General

Brand	Emerson
Model	ROC827
Category	Controller
Language	English