Installation; P1 Terminal Connections; P2 Terminal Connections; Control Mode - AMX UPC20 Plus Operation/Reference Manual

Installation

P1 Terminal Connections

Low voltage power (see the table below) for internal circuitry is provided from an on-board transformer,
powered by an external 120 or 240 VAC source. An onboard switch is used to select input voltage. When
using the UPC20+ for 277 VAC control, the on-board internal circuitry is powered by a separate 120/240
VAC line, or from an optional 12 VDC power supply.
P1 Terminal Connections
Terminal Input/Output
1
2
3
4
5
6
K1 and K2 are the power and motor control relay connections to P1 terminals 1 and 2, 3 and 4,
respectively. Each relay is capable of switching the following loads:
The maximum total combined current through both relays is 20 Amps. There are two 12-gauge jumpers
that are wired to supply board power at 120/240 VAC, and to connect the common terminals of the
relays. The jumpers are removed as needed according to the wiring options selected.

P2 Terminal Connections

The table below defines the inputs and outputs for Terminal P2.
P2 Low Voltage Terminal Inputs/Outputs
Terminal Input/Output
1
2
3
4
5
6
7
8
9

Control Mode

The table below defines the control mode functions for Inputs 1 and 2. TheUPC20+ Control Mode
Functions for Inputs 3 and 4 table on page 9 defines the control mode functions for Inputs 3 and 4.
UPC20+ Universal Power Controller
Function
Output Load 1 out
Input Line 1 in
Output Load 2 out
Input Line 2 in
Input Neutral to transformer on PCB which supplies low voltage
Input Line to transformer on PCB which supplies low voltage
Resistive Load 20 Amps at 120/240 VAC
Fluorescent Ballast 6 Amps at 277 VAC
Inductive Load 1 HP
+12 VDC out
Serial data in (IR sensor)
Ground
Ground (common)
Input 1
Input 2
Input 3
Input 4
+12 VDC in
Installation
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