IDX 7505 Manual (V1.17 / 2011-APR-11)
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Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
7
Functional description
The IDX module offers three different possibilities to control a stepper motor: step-dir, RS485, and
stand alone. With the RS485 it is possible to change parameters and save them to the EEPROM of the
module to have all options in any mode. Therefore there are different settings like microstep
resolution possible in step-dir mode also.
5V Power Supply
12… 75V DC
TMCM IDX 7505
High Power
Driver
TMC249
progammable
Motion
Controller
Step
Motor
step/dir
Stop
Switches
+5V
RS485
GPIOs
2
MOSFET
Driver
Stage
Opto
isolation
Figure 7.1: Main parts of the IDX 7505
7.1
Disable function
The disable works as an emergency shutdown. Connected to ground all power to the motor will shut
down independent of the current settings.
Please stop the step impulses or set the velocity to zero before enabling the motor again. It starts
abrupt otherwise.
Function Table:
V
OPTON
open wire
V
OPTOFF
motor disabled
motor enabled
7.2
RS485 interface
The RS485 interface can control all functions of the IDX. It is possible to change parameters, with this
interface which are also valid in the other modes like max. velocity or acceleration. The parameters
can be written to the EEPROM to obtain the changes after a restart.
