Installation
11
UPC20+ Universal Power Controller
Dual circuit 277 VAC
Dual circuit connections provide power from 277 VAC for fluorescent ballasts (FIG. 6). Circuit board
power is provided by a separate 120/240 VAC high voltage circuit, or 12 VDC connected to terminals 1
and 6 on the low voltage terminal block. For dual circuit 120/240 VAC operation, remove the short 12
AWG wire jumper.
Wiring The UPC20+ to Either The IRX-DM+ Or IRX-SM+
Wire the UPC20+ to the sensor as shown in FIG. 7. .
Wireless IR Sensor Connection
The wireless IR sensor connections are located on P2, terminals 1 - 3. Terminal 1 is +12 VDC out,
terminal 2 is serial data in, and terminal 3 is GND. The +12 VDC is short circuit protected, and the
output supplies up to 25 mA for the remote sensor.
For dual circuit 277 VAC operation, remove both 12 AWG wire jumpers.
FIG. 6
Low voltage and 277 VAC high voltage wiring
1 2 3
4 5 6 7 8 9
For Dual 277 VAC Circuits
Power Circuit Board Electronics
From 12 VDC or 120/240 VAC
120/240
VAC
Line Neut
Line
#2
Load
#2
Line
#1
Load
#1
Line #1 in, Line #2 in,
and Line to transformer
are all independent
Terminal
Block P1
Remove
Line
Remove
Board
Power
-
+
External Power to Circuit
Board Electronics
12 VDC
Terminal
Block P2
6
5
4
3
2
1
If motors of any kind are used, do not set to a power control mode. When a power
control mode is selected, both relays can be on at the same time. Motors can be
severely damaged if this happens.
FIG. 7
Wiring diagram for UPC20+ to IRX-DM+ or IRX-SM+
2 AUX OUT
GND
IN
1
2
3
PWR
4
PWR
3 OUT
1
GND
UPC20+
IRX-DM+ or IRX-SM+
Top view
connector
Summary of Contents for UPC20 Plus
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