Table of Contents
Advertisement
BA SineDrive User's Manual
5.3.2. Restore/Reset Signal
This signal can be used to restore the parameters to their default settings during power up.
To restore the parameters, tie this signal to signal common (P1-20 to P1-15) and turn on
power to the unit. The user will be prompted for a course of action to take. After power
up, this signal can be used to reset the BAS.
5.3.3. Input+/Input- Command INPUT
The command input is a signal that represents a ±10V current command or a ±10V
velocity command from an external controller. The input impedance is at least 20K
ohms.
5.3.4. Thermistor Input Signal
A thermistor can be connected to the BAS as a means of detecting a motor over
temperature condition. If over temperature occurs, the BAS aborts motion and shuts
down the power stage. This is a latching condition, (meaning that power must be cycled
to clear the fault). Figure 5-5 shows the circuitry used to detect the over temperature.
While the temperature is low, so is the resistance of the thermistor. Consequently, the
input to the inverter is pulled low and its output is high. As the temperature increases, so
does the thermistor resistance. Once the resistance of the thermistor increases beyond
1.5K Ohms, the input to the inverter will pull high and generate a fault in the controller.
To Thermal
Sensor
Figure 5-5.
Version 1.4
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
+ 5V
5 V Logic Interface
1.5K
.1UF
Over-Temperature Circuitry
Aerotech, Inc.
Technical Details
74HCT04A
5-7
Advertisement
Table of Contents
