Power Brick Controller User Manual
Connections and Software Setup
107
X19: External Encoder Supply
Typically, feedback devices power is supplied through the X1 – X8 connectors using the in5 VDC
power supply. However, if the total feedback devices power budget exceeds ~ 2 amperes, this connector
can be used to bring in the power supply from an external source.
Caution
Encoders requiring voltage supply levels other than +5 VDC must be
supplied externally, neither through X1-X8 nor through X19.
Caution
The maximum current draw out of a single encoder channel must not
exceed 500 mA.
Wiring the Encoder Supply
Pin#
Symbol
Description
Note
1
5V External
+5 VDC Input when using external supply
2
–
+5 VDC Output
Tie to pin #1 to use internal power supply
3
GND
0 VDC Input when using external supply
Mating Connector Phoenix Contact P/N: 1778845
Caution
Only two of the three available pins should be used at one time. Do
not daisy-chain the internal 5 VDC power supply with an external one.
By default, pins 1-2 are tied together to use the internal power supply. To wire an external power supply,
remove the jumper tying pins 1-2 and connect the ex5 VDC to pin #1, and 0 VDC to pin#3:
Internal Power Supply
Wiring (Default)
External Power Supply Wiring
1
+5 V Externa
2
3
0 V External
External 5 V
+5 V
1
+5 V Externa
Supply
0 V
2
3
0 V External
