IDX Manual (V1.15 / September 26
th
, 2008)
6
Copyright © 2005-2008, TRINAMIC Motion Control GmbH & Co. KG
3
Electrical and Mechanical Interfacing
3.1
Pinning
Power
&
Motor
Controls
OB2
OB1
OA2
OA1
GND
+VS
Common
Disable
Dir
Step
+5V
RefA
RefB
GND
GPI
GPO
RS485A
RS485B
RS485A
RS485B
IDX
Figure 3.1: Pinning of IDX
Pin
Number
Function
OB1, OB2
1, 2
Connections for motor coil B
OA1, OA2
3, 4
Connections for motor coil A
GND
5
GND, power
+VS
6
Positive power supply voltage
Table 3.1: Power and Motor Pinning
Pin
Number
Function
RS485 -
1, 3
RS485 remote control access -, TTL input
RS485 +
2, 4
RS485 remote control , TTL input
GPO
5
General Purpose Output, for wiring scheme see Figure 5.7
GPI
6
General Purpose Input, for wiring scheme see Figure 5.12
GND
7
GND reference
REF B
8
Reference signal B (integrated 3.9 K pull up resistor to +5V)
REF A
9
Reference signal A (integrated 3.9 K pull up resistor to +5V)
+5V
10
Co5V output, reference
Step
11
Opto-decoupled input (negative terminal):
Each impulse causes one motor microstep
Direction
12
Opto-decoupled input (negative terminal):
Polarity determines motor direction
Disable
13
Opto-decoupled input (negative terminal):
Tie to opto-coupler negative supply voltage to disable motor driver
Common
14
5…24V, Opto-coupler positive supply voltage
Table 3.2: Controls Pinning