Cooper Instruments & Systems DFR 1250 Two Channel Paperless Recorder - Manual (Page 17)

TSFM 500 DC 15 32-1101 REV 2 710
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 loosening, repositioning, and re-tightening the thumb screws.
Note: the distance between limit switches must be at least 0.2 in [5 mm].
6.3.3 Overload Protection
The 09-1143 cable is required for overload protection of a Mark-10 gauge. If overload protection is enabled, the test
stand will stop when the programmed percentage of full scale of the gauge has been reached.
When overload protection is enabled, if the 09-1143 cable is disconnected, and/or if the force gauge is turned off, the
error message GAUGE ERROR will appear. Plug in the cable and/or turn on the force gauge to clear the message.
Note: For force test stands, when the crosshead is moving in the UP direction, only the tension overload setting applies.
When the crosshead is moving in the DOWN direction, only the compression overload setting applies. The same concept
applies to the CW and CCW directions for torque test stands.
6.3.4 Auto Return Mode
With this setting, the test stand moves to a limit switch, load set point, or travel distance (TSTM / TSTMH only),
whichever occurs first, and stops. Then, the test stand returns at maximum speed to the other limit, whichever occurs
first, and stops. The speed at which the test stand travels is dictated by the independent speed settings.
The test stand can be stopped at any time during an Auto Return sequence by pressing STOP. To resume the test, press
UP or DOWN.
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.
Travel indication and limit switch operation is the same as in Basic Mode
.