Emerson ROC827 - Page 59

ROC800-Series Instruction Manual
Revised July-2017 Power Connections 3-5
expanded backplanes. With this module installed, the ROC800 requires
10.5 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.
A
Power Input Voltage + / –
B
AUX+ / AUX–
C
AUX
SW
+ / AUX
SW
–
D
Voltage present at Power Input
E
AUX Output enabled
F
Switched AUX Output enabled
G
12v power to backplane
H
3.3v power to backplane
Figure 3-3. PM-30 module
Table 3-5. 30 Volt dc Power Input Terminal Block Connections
Terminal Blocks
Definition
Volts DC
Power input +/-
+/-
Accepts 11-30Vdc nominal from an AC/DC converter or
other dc voltage supply
11 to 30 Volts dc
Aux +/-
Supplies reverse polarity protected source voltage to
external devices. Circuit limited (.9A +/- 10%)
Input Voltage minus .7Vdc
Aux
SW
+/-
Supplies reverse polarity protected source voltage to
external devices. Circuit limited (.9A +/- 10%)
Input Voltage minus .7Vdc
Table 3-6. 30 Volt dc Power Input LED Indicators
Signal
LED
V
ok
Indicates voltage is in tolerance on BAT+ and BAT-
V
12
Indicates the module is providing voltage to backplane
V
3.3
Indicates the module is providing voltage to backplane
Aux
Indicates the Auxiliary Output Power is enabled
Aux
SW
Indicates the Switched Auxiliary Output Power is enabled
A
B
C
D
E
F
G
H