Specifications

SECTION 11 TROUBLESHOOTING

SECTION 11 - TROUBLESHOOTING

MY COMPUTER WON’T TALK TO THE SMC40

When using a computer to communicate to the SMC40, you must use Anaheim Automation

communications program such as Hyper Terminal, or a programming language such as BASIC or C. The

communication parameters must be set up correctly for 8 Data Bits, No Parity Bits, and 1 Stop Bit. The

Baud Rate can be set up for rates between 50 Hz to 38400 (50, 300, 1200, 2400, 9600, 19200, 38400).

Check the Baud Rate setting on the yellow and black rotary switch on the side of the unit. This

setting must match to the baud rate you specified (see Table 6). The Request To Send (RTS) signal is

supported by some software and not others. Refer to the software manual to see what you need, or just

use trial and error - it will not damage anything. Generally use RTS on, or the first 8 positions of the dip

switch. Once the communications are set up you finally need to talk to the SMC40. This is done by

selecting the axis you want to talk to. Position the Axis Select for the desired axis number for your

unit. If you chose axis 0 for example, the rotary dip switch would be pointing to 0. To communicate to this

axis, type ID then ↵Enter.

MOTOR IS STALLING

Check the kick current pot setting on the driver, be sure it is set to motor's current rating. Check the wiring

of the motor to the driver. Different step motors have different performances, some may be able to start

faster than other. If your motor is stalling at start up or during ramping, then lower the base and max speed

and increase the acceleration time (BASE SPEED 500, MAX SPEED 1000, AND ACCEL/ DECEL 10000

are settings that should be good for testing most motors).

THERE IS NO POWER TO THE UNIT

If the fan of the DPD72401 is not running, check the fuse in the fuse tray in the power connector terminal

(use 7 amp fast blow fuse only). If the fuse continues to blow call factory for assistance.

STATUS LED TURNS OFF WHEN I PLUG INTO THE UNIT

The communication switches on the side of the unit are most likely incorrect.