Overview Of Outputs - Galil Motion Control DMC-21 5 Series User Manual

Reset Input/Reset Button
When the Reset input is triggered the controller will be reset. The Reset input and reset button will not master
reset the controller unless the MRST jumper is installed during a controller reset. The Reset input is an active low
signal.

Overview of Outputs

General Purpose Digital Outputs
The DMC-21x5 outputs are rated for 5V. The amount of outputs depends on the number of axes on the controller.
For instance, 1-4 axis models come with a single bank of 8 outputs, Bank 0 (DO[8:1]). 5-8 axis models come with an
additional bank of 8 outputs, Bank 1 (DO[16:9]), for a total of 16 outputs. These inputs can be read individually by
using the @OUT[n] operand where n specifies the input number.
Electrical Specifications
Output Voltage
Current Output
Output Compare
Output compare is controlled by the position of any of the main encoder inputs on the controller. The output can
be programmed to produce either a brief, active low pulse (624 nsec) based on an incremental encoder value or to
activate once ("one shot") when an axis position has been passed. When setup for a one shot, the output will stay
low until the command is called again. For further information, see the command
OC
Reference
Electrical Specifications
Output Voltage
Current Output
Error Output
The controller provides a TTL signal, ERR, to indicate a controller error condition. When an error condition occurs,
the ERR signal will go low and the controller LED will go on. An error occurs because of one of the following
conditions:
1. At least one axis has a position error greater than the error limit. The error limit is set by using the
command ER.
2. The reset line on the controller is held low or is being affected by noise.
3. There is a failure on the controller and the processor is resetting itself.
4. There is a failure with the output IC which drives the error signal.
For additional information see Error Light (Red LED) in Chapter 9 Troubleshooting.
Electrical Specifications
Output Voltage
Current Output
Chapter 3 Connecting Hardware ▫ 22
0 – 5 VDC
20 mA Sink/Source
0 – 5 VDC
20 mA Sink/Source
0 – 5 VDC
20 mA Sink/Source
in the Command
OC
DMC-21x5 User Manual 1.0a1