Installation manual

70
Epsilon EP-B Base Drive Reference Manual
Position Command
This is the commanded position generated by the device.
Following Error
The Following Error is the difference between the Position Command and the Position Feedback. It is positive when the
Position Command is greater than the Position Feedback.
Encoder Position
The motor position in encoder counts since power up when the value was set to zero. This is a signed 32 bit value.
Position Feedback
This is the feedback position of the motor.
Analog Posn Cmd
Commanded position based on Analog Position mode setup when Enable Analog Position input is activated.
Velocity Group
Preset Velocity
The value of the Preset Velocity Command. The units are RPM and the range is from ± maximum motor velocity. A
positive value reflects the direction selected by the Positive Direction option buttons on the Setup view. (Motor direction
is determined as you face the shaft end of the motor).
Analog Command
The analog command voltage currently being applied to the analog command input on the analog/sync output
connector.
Velocity Command
The Velocity Command is the actual command received by the velocity loop.
Velocity Feedback
This parameter is the actual feedback motor velocity in RPMs.
Torque Group
Analog Torque
Displays the Analog input value converted to a percent of torque command.
Torque Command
This parameter returns the torque command value before it is limited. The torque command may be limited by either the
Torque Limit (if the Torque Limit Enable input function is active) or current foldback.
Torque Cmd Limited
This displays the percent of torque being commanded to the motor. The value is the result of the Torque Command after
being limited by Current Foldback and the Torque Limit value (if enabled).
Torque Feedback
The actual percentage of torque generated by motor, this is calculated using motor current
Drive Status Group
Drive Status
This reflects the state of the diagnostic LED on the drive. (i.e., Ready, Indexing, Homing, Jogging, etc.).
Foldback RMS
This parameter accurately models the thermal heating and cooling of the drive and motor. When it reaches 100 percent,
current foldback will be activated.
Segment Display
Character currently being displayed by the diagnostic display on the front of the drive.
Bus Voltage
Displays the actual measured voltage on the DC power bus.