ETS-Lindgren 2090 Controller - Manual (Page 60)

Operation Model 2090 Multi-Device Controller
USING THE STEP FUNCTIONS
The STEP functions can move a device in “momentary”
increments using the toggle keys under STEP. These keys
allow “jogging” the device to a more exact position. These
keys are as follows:
INC Moves the device up or clockwise.
DEC Moves the device down or counterclockwise.
The controller will move the device in the desired direction
as long as the key is pressed. When the key is released, the
device will stop. The corresponding motion indicators
under the POSITION control group will light to indicate
the actual motion. Under the default configuration, the
STEP keys are not restricted by the software limits. Thus
they can be used for adjusting position outside the soft limit
settings during configuration. Optionally, the Model 2090
can be configured to restrict the motion to stay within the
soft limits using parameter b1 . This parameter also allows
configuring the STEP keys to use a “fast stop” option on
variable speed devices, which will eliminate the normal
deceleration in favor of a much quicker deceleration curve.
This can be used to improve the jog response of a device
with a long deceleration. In addition, parameter S0 can be
used to specify a fixed speed for use by the STEP keys.
CHANGING POLARIZATION
60 © ETS-Lindgren– April, 2006
Revision G– P# 399199