ADMET eP2 - Testing Machine Movement Issues

51 Morgan Drive Norwood, MA 02062 22
Tel: (781) 769-0850 Fax: (781) 769-0884
Sales@ADMET.com www.ADMET.com R7 10/2018
eP2 Controller
Operators Manual
Testing Machine Movement Problems
Problem Description
Possible Cause
Action
Machine not moving at
requested rate
Tuning Gains (Control Menu) not set
properly
Ensure that the PID tuning gains are properly
set. The testing machine can be programmed to
move at either a specified load rate or a
specified position rate. The tuning gains for
position control have been set at the factory.
The tuning gains for load control need to be set
by the customer as these are dependent on the
sample being tested.
Incorrect Test Method is active
NOTE: tuning gaings which control
machine movement are test method
specific
Ensure that the appropriate Test Method with
the correct setup is selected. The Test Method
contains all of the information for the test
including the programmed control channels and
the control rates as well as the PID tuning gains.
Machine is not moving
Tuning Gains (Control menu) not set
properly.
Ensure that the PID tuning gains are properly
set. The testing machine can be programmed to
move at either a specified load rate or a
specified position rate. The tuning gains for
position control have been set at the factory.
The tuning gains for load control need to be set
by the customer as these are dependent on the
sample being tested.
Incorrect Test Method is active.
NOTE: tuning gains which control
machine movement are test
method specific.
Ensure that the appropriate Test Method with
the correct setup is selected. The Test Method
contains all of the information for the test
including the programmed control channels and
the control rates as well as the
PID tuning gains.
Postion Calibration value is incorrect.
Ensure that the position calibration value is
appropriate for the test frame. (Utils menu ->
Transducer -> Position). Contact ADMET for the
correct position calibration value for your test frame.
Machine moves in wrong
direction during testing
Direction of movement specified
incorrectly.
Control menu -> Dir
Ensure that the direction of movement setting
(Control menu -> Dir) is set to the desired
direction: Tension or Compression
Machine moves in wrong
direction during testing
Home Location is not set properly.
Ensure that Home Location in the Control
menu is set to an amount appropriate to your
test. For most testing applications Home
Location is set to the default of 0.0000 such
that the machine returns to zero position when
homing. However in some applications, such as
compression testing it is required to have the
home location offset from the zero position