Control Techniques Epsilon EP-P, Reference Manual

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Epsilon EP-P Drive Reference Manual
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Revision A4 www.controltechniques.com
Travel Limit +/-
This fault is caused when either the + or - Travel Limit input function is active.
Sync Fault
This fault occurs when the user selected trajectory update rate is set too short based on the processor requirements. The
three possible trajectory update rates are 800µs, 1200 µs, or 1600 µs. Try changing the trajectory update rate to the largest
value (1600 µs) and run the application again. If the problem persists after setting to 1600 µs, contact Control Techniques
technical support.
Run Time Faults
A 4 will be displayed on the diagnostic display when the Epsilon EP-P drive experiences one of the following faults.
Trajectory Fault #1
This fault occurs when the drive commands motion that cannot be achieved due to excessive following error, accel, decel,
velocity settings, or unusable user units. Check the user units, velocities, accels and decels for correct values.
Trajectory Fault #2
This fault occurs when using the "Using Capture.#" option in a user program. If the capture has never been triggered, or the
capture data has gone "stale", the drive will not be able to process motion properly.
Program Fault
This fault indicates a problem was encountered in a user program. For example: an illegal math operation resulting in a divide
by zero or overflow of 32-bit data. This error can also occur if trying to access a drive parameter that is non-existent or not
available to the user.
Invalid Configuration Fault #2
The user program in flash memory will not run. Download the user program again using PowerTools Pro. A common cause of
this fault could be an interrupted configuration download, such as a cable being disconnected during the download.
No Program
This fault will be displayed on initial power-up indicating that no configuration has been downloaded to the drive. To clear the
fault, download a valid configuration to the drive.
All "On"
This is a normal condition during power up of the drive. It will last for less than 1 second. If this display persists, call Control
Techniques for service advice.
7.2 Drive Faults
The Active Drive Faults dialog box is automatically displayed whenever a fault occurs. There are two options in this dialog box:
Reset Faults and Ignore Faults.
Resetting Faults
Some drive faults are automatically reset when the fault condition is cleared. Others require drive power to be cycled or the
drive to be “rebooted” to be cleared. If you wish to continue working in the PowerTools Pro software without resetting the fault,
click the Ignore Fault button.
To reset faults that can be reset with the Reset Faults button, simply click the Reset Faults button in the Drive Faults Detected
dialog box or push the Reset button on the front of the drive where the fault occurred.
Viewing Active Drive Faults
To view all active drive faults, select the View Faults command from the Device menu. The dialog box displayed is the same as
Active Drive Faults dialog box described above.
Rebooting the Drive
To reboot the drive, cycle power or select Reboot Drive from the Device menu. This command reboots the drive attached to
the active Configuration Window.
7.3 Error Messages
PowerTools Pro will pop-up an error message box to alert the user to any errors it encounters. These message boxes will
describe the error and offer a possible solution.
The terms below appear in a list of common problems you might encounter when working with PowerTools Pro software along
with the error message displayed, the most likely cause and solution.
Assign means to set a value using an equation. For example, x = 2, you are assigning the value of 2 to x.
A Boolean value is a value that represents two states such as On or Off. In the Epsilon EP-P drive there are three variable
types that have Boolean values. They are Boolean Variables, Input Event Variables and Output Event Variables. They all have
a Boolean Value and can be used in equations to assign their Boolean value to another variable or in a conditional test.
In an equation, conditional tests such as (vel > 3.1) become Boolean values.
In Epsilon EP-P drive, unquoted text names are used to represent Boolean constants. Several different names are available.