Trust Automation, Inc. TA333 High Power Linear Servo Amplifier
10-Apr-09 Page 15 of 38
Dual Brushed Motor Mode
Two independent motors or one stepper type motor may be driven in this configuration. For two
brushed-type motors (or voice coils) connect the (+) lead of the first motor to the A phase output (drive
with the A command) and connect the (–) lead to the power supply common (Pin 2 on J6). Connect the
second motor (+) to the B phase output (drive with the B command) and the (–) lead to the power
supply common. (See application example 5.5)
Stepper Motor
Two coil sets on a stepper type motor may be driven in this configuration. This configuration is the
same as the dual brushed mode except that the two coil sets are in the same motor. The linear
command is driven on command A and B with a motion controller setup to drive a stepper motor
sinusoidally. (See application example 5.6)
1.16 Serial Monitoring
The TA333 has a high speed data port for monitoring drive performance and logging of fault conditions.
The five pin port at J2 provides access to a TTL serial data stream presented at 230,400 baud. Set up a
terminal program (such as HyperTerminal) with the baud rate set to 230,400 bits per second, 8-bit data,
no parity, 1 stop bit, and flow control to no handshaking.
An optional TTL to USB serial cable may be ordered as CBLZ-0910-01 to facilitate connection to a PC.
Reference the FTDI installation guide for installing the TTL to USB serial cable.
Figure 4 – Com Port Settings for Serial Communication
When the TA333 is powered up, the serial port will transmit the firmware version and the drive mode
set by SW1 position 5 through 8. (See section 4.10 for more information)
Figure 5 - Firmware Version and Drive Mode
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