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BLDC Controller Connectors

All connectors are shown relative to their respective board edges, with the edge indicated by a black vertical line.

Step/Direction RJ-45

The RJ-45 and 8-pin headers are electrically connected, you may use either but please use only one at a time. E-STOP is normally pulled high. Anyone may pull this low to force a stop; everyone must respond to this being pulled low. FAULT is for controller-specific faults; an incoming E-Stop does not cause FAULT to become active.

DIRECTION high counts up. STEP counts on the falling edge.

in/outE-STOP
inSTEP
ncVCC
inDIRECTION
in/outGND
outFAULT
outLIMIT1
outLIMIT2

Step/Direction Header

in/outE-STOP STEPin
ncVCC DIRECTIONin
in/outGND FAULTout
outLIMIT1 LIMIT2out

CAN RJ-11

The two CAN connectors are electrically connected so that devices may be chained. If this device is the last one on the chain, jumper the CANTERM jumper to terminate the CAN bus.

First prototype
telephone custom
CAN L
GND
CAN H
+5V
Rev 1.10 and later
telephone custom
+5V
CAN H
CAN L
GND

Hall/Encoder

Wire colors are for a DA34FBB-3A motor encoder's module.

GRY HALL W SIG HALL W GND GRY/BLK
BRN HALL V SIG HALL V GND BRN/BLK
WHT HALL U SIG HALL U GND WHT/BLK
RED/WHT HALL +5V HALL GND BLK/WHT
RED ENC +5V ENC GND BLK
GRN ENC A POS ENC A NEG GRN/BLK
BLU ENC B POS ENC B NEG BLU/BLK
PRP ENC Z POS ENC Z NEG PRP/BLK

Limit Sensors

Each limit sensor provides +5 and GND to power active sensors. Surface mount pads adjacent to each connector allow for pull-up or pull-down resistors to be soldered to the board for switch sensors. Resistors should be 4.7K to 10K

GND
LIMIT
+5V

Motor Phases

W
V
U

Motor Power Supply

Max 300 VDC. Ground is common with logic ground.

MOTOR V+
MOTOR GND

Logic Power Supply

+15 VDC
GND

UART2

UART2's pinout is designed for the FTDI TTY-232R-5V cable. Pin 1 is listed first. Protocol is 115,200 baud 8/N/1.

RTS
RXD
TXD
VCC
CTS
GND

UART1 and E1

The UART1 and E1 connectors are for programming the RX/62T processor. Use one or the other but not both at the same time. The PROG_RESET jumper should be jumpered on PROG when using the USB connector, and left open when using the E1. It may be jumpered to RESET temporarily to reset the processor. When the USB is used as a serial console, the protocol is 115,200 baud 8/N/1.


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  Copyright 2012   by DJ Delorie     Updated Mar 2012