Hello again!
I have made great progress with the TIC825 and it is doing a wonderful job for me. I do have a question though regarding the current limit setting via serial control.
My stepper motor is 2.5 Amps per phase. The TIC825 can provide up to 4.0 amps.
The range we can use to specify the current is a value from 0 ~ 124 based on what I found in the directions.
This is what I calculated for a low and Hi setting for my stepper motor.
31 for 1000 mA of output (Low setting for my motor)
78 for 2500 mA of output (High setting for my motor)
I selected 1000mA for low current based on testing with the TIC Control Center software wherein at that setting the motor spins fine at speed, but once I add a little resistance the motor stalls - which gives me a good idle current.
The instructions started to confuse me in this area…
Disregarding the maximum allowed current limits documented above, the achievable current limits are as follows: 0 through 31, even numbers from 32 to 62, and multiples of four from 64 to 124. If you set a current limit that is not achievable, the Tic will generally accept it and store it in the “Current limit” variable, but it will actually have the same effect as the highest achievable current limit lower than it. For example, a current limit of 33 is the same as a current limit of 32, and a current limit of 66 is the same as a current limit of 64.
Thanks Again for the help and a great product!
Chris D