Lenze S94P01B2 - Manual (Page 37)

S94P01B2
35
Parameters
5 Parameters
PositionServo 940 series drives are configured through one of the interfaces: RS232,
RS485 or Ethernet. The drives have many programmable and configurable features
and parameters. These features and parameters are accessible via a universal software
called MotionView. Please refer to the MotionView Manual for details on how to make a
connection to the drive and change parameter values.
This chapter covers programmable features and parameters specific to the
PositionServo Model 940 drive in the order they appear in the Parameter Tree of
MotionView. Programmable parameters are divided into groups. Each group holds one
or more user’s adjustable parameters.
All 940 series 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 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). See Programmer’s
Manual for details on programming. 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
Programmer’s 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. Do not insert 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 940 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. Press the enter button
to load the EPM, this will take a moment. The drive will display ‘BUSY” during this time
and will return to normal display when update is complete.
STOP!
If the EPM contains any data from an inverter drive, that data will be overwritten
during this procedure.