Example 8 - Operation Under Torque Limit

The magnitude of the motor command may be limited independently by the instruction TL.

Instruction

Interpretation

TL 0.2

Set output limit of X axis to 0.2 volts

JG 10000

Set X speed

BG X

Start X motion

In this example, the X motor will probably not move since the output signal will not be sufficient to overcome the friction. If the motion starts, it can be stopped easily by a touch of a finger.

Increase the torque level gradually by instructions such as

InstructionInterpretation

TL 1.0

Increase torque limit to 1 volt.

TL 9.98

Increase torque limit to maximum, 9.98 Volts.

The maximum level of 9.998 volts provides the full output torque.

Example 9 - Interrogation

The values of the parameters may be interrogated. Some examples …

Instruction

Interpretation

KP ?

Return gain of X axis.

KP ,,?

Return gain of Z axis.

KP ?,?,?,?

Return gains of all axes.

Many other parameters such as KI, KD, FA, can also be interrogated. The command reference denotes all commands which can be interrogated.

Example 10 - Operation in the Buffer Mode

The instructions may be buffered before execution as shown below.

Instruction

Interpretation

PR 600000

Distance

SP 10000

Speed

WT 10000

Wait 10000 milliseconds before reading the next instruction

BG X

Start the motion

Example 11 - Using the On-Board Editor

Motion programs may be edited and stored in the controller’s on-board memory. When the command, ED is given from communications software, the controller’s editor will be started.

The instruction

ED

Edit mode

moves the operation to the editor mode where the program may be written and edited. The editor provides the line number. For example, in response to the first ED command, the first line is zero.

Line #

Instruction

Interpretation

000

#A

Define label

001

PR 700

Distance

002

SP 2000

Speed

USER MANUAL

Chapter 2 Getting Started • 33

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Galil DMC-13X8 Example 8 Operation Under Torque Limit, Example 9 Interrogation, Example 10 Operation in the Buffer Mode