Lenze S94P01G Position Servo - Manual (Page 41)

S94P01G
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Parameters
5 Parameters
The PositionServo drive is configured through an RS485 or Ethernet interface. The
drive has many programmable features and parameters accessible via a universal
software called MotionView. Refer to the MotionView Manual for details on how to
make a connection to the drive and change parameter values. This chapter covers the
PositionServo’s programmable features and parameters in the order they appear in
the Parameter Tree of MotionView. Programmable parameters are divided into groups.
Each group holds one or more user adjustable parameters.
All drives can execute a User Program in parallel with motion. Motion can be specified
by variety of sources and in three different modes: Torque, Velocity and Position.
In Torque and Velocity mode Reference can be taken from Analog Input AIN1 or from
the User Program by setting a particular variable (digital reference). In Position mode,
the reference could be taken from MA/MB master encoder/step and directions inputs
(available in terminal P3) or from trajectory generator. Access to the trajectory generator
is provided through the User Program’s motion statements, MOVEx and MDV. Refer to
the PositionServo Programming Manual for details on programming.
Whether the reference comes from an external device, (AIN1 or MA/MB) or from the
drives internal variables (digital reference and trajectory generator) will depend on the
parameter settings. Refer to “Parameters” group in MotionView.
5.1 Parameter Storage and EPM Operation
5.1.1 Parameter Storage
All settable parameters are stored in the drive’s internal non-volatile memory. Parameters
are saved automatically when they are changed and are copied to the EPM memory
module located on the drive’s front panel. In the unlikely event of drive failure, the EPM
can be removed and inserted into the replacement drive, thus making an exact copy
of the drive being replaced. This shortens down time by eliminating the configuration
procedure. The EPM can also be used for replication of the drive’s settings.
5.1.2 EPM Operation
When the drive is powered up it first checks for a white EPM in the EPM Port. If the EPM
Port is empty, no further operation is possible until a white EPM is installed into the EPM
Port. The drive will display “
-EP- ” until an EPM is inserted. Never install or remove the
EPM module while the drive is powered.
If a different color EPM is inserted the drive may appear to function however, some
operations will not be correct and the drive may hang. The white EPM is the only
acceptable EPM for the PositionServo drive. If a white EPM is detected, the drive
compares data in the EPM to that in its internal memory. In order for the drive to operate,
the contents of the drive’s memory and EPM must be the same. If “FEP?” is displayed
press the enter button to load the EPM’s data to the drive. Wait. The drive will display
“BUSY” during loading and will return to normal display once the update is completed.
STOP!
If the EPM contains any data from an inverter drive, that data will be overwritten during this procedure.
5.1.3 EPM Fault
If the EPM fails during operation or the EPM is removed from the EPM Port, the drive
will generate a fault and will be disabled (if enabled). The fault is logged to the drives
fault history. Further operation is not possible until the EPM is replaced (inserted) and
the drive’s power is cycled. The fault log on the display shows “
F_EP ” fault.