Series DC Digital Controllers
22
6.3 Basic Mode
The test stand moves in the direction indicated by the UP and DOWN buttons.
When the test stand is in motion, an LED indicator on the button pushed will be
illuminated. The KEYS setting controls how test stand movement responds to
the push of the UP and DOWN buttons. The three settings are:
1. Maintained (default)
The test stand will move continuously once the button has been
pressed. Subsequently pressing STOP during a test will stop
motion.
2. Momentary
The test stand will move only if the button is pressed and held.
Releasing the button will stop movement immediately.
3. Auto
Holding down the button for more than 0.5 seconds will enter
Momentary mode, at which time an audible indicator will sound
and the LED indicator on the button pushed will be illuminated. A
short tap on the button will operate the test stand in Maintained
mode. Pressing STOP during Maintained mode will stop motion.
To resume the test, press UP or DOWN again.
Pressing EMERGENCY STOP will immediately stop motion in any
mode. To release, twist the button counter-clockwise until it
assumes its original position. To resume the test, press UP or
DOWN.
The test stand will move until a limit switch, load set point, or travel distance set
point (TSTM / TSTMH only) has been reached. If the test stand has stopped at
a load set point or travel distance set point, the limit condition may be
overridden by pressing and holding UP or DOWN for two seconds.
6.3.1 Travel Indication (TSTM / TSTMH only)
Travel indication is displayed in the upper left corner of the display, as shown in
Section 6.1. The displayed units are the same as configured in the UNITS
parameter. Indicated travel is a relative value. To zero out travel distance,
ensure that the test stand is not in motion, then press and hold STOP for three
seconds. If the cable connecting the angle encoder to the rear of the controller
is unplugged, the error message ENCODER ERROR will appear. To clear the
message, insert the cable, then press STOP.
6.3.2 Limit Switch Operation
Note: limit switches are standard on the ESMH test stand, and are optional on
the ESM and TSFM500 / TSFM500H test stands. Not applicable for TSTM /
TSTMH test stands.
Limit switches allow the operator to set a location along the column at which
point the crosshead will stop moving. Adjust the switches’ positions by
To Next Page
Loading...
Need help?
General
