Galil DMC-3425 user manual Hardware & Software Protection, Troubleshooting, Theory of Operation

Displaying Variables and Arrays	137
Interrogation Commands	137
Formatting Variables and Array Elements	139
Converting to User Units	140
Hardware I/O	140
Digital Outputs	140
Digital Inputs	141
Input Interrupt Function	142
Analog Inputs	142
Extended I/O of the DMC-3425 Controller	143
Configuring the I/O of the DMC-3425	143
Saving the State of the Outputs in Non-Volatile Memory	144
Accessing Extended I/O	144
Interfacing to Grayhill or OPTO-22 G4PB24	145
Example Applications	145
Wire Cutter	145
A-B (X-Y) Table Controller	146
Speed Control by Joystick	148
Position Control by Joystick	149
Chapter 8 Hardware & Software Protection	151
Introduction	151
Hardware Protection	151
Output Protection Lines	151
Input Protection Lines	152
Software Protection	152
Example:	152
Programmable Position Limits	152
Example:	153
Off-On-Error	153
Examples:	153
Automatic Error Routine	153
Example:	153
Limit Switch Routine	154
Chapter 9 Troubleshooting	155
Overview	155
Installation	155
Communication	156
Stability	156
Operation	156
Chapter 10 Theory of Operation	157
Overview	157
Operation of Closed-Loop Systems	159
System Modeling	160
Motor-Amplifier	161
Encoder	163
DAC	164
Digital Filter	164
ZOH	165
System Analysis	165
System Design and Compensation	167
The Analytical Method	167
DMC-3425	Contents• v