Terminal Switch Configuration
1-57
element
TM
Series
Terminal Switch Learn
The Terminal Switch Learn procedure is used to learn the locations of the NTS and ETS
switches. ETS switches are required where full-stroke buffers are used and the rated car speed
is greater than 200 fpm/1.0m/s and ETSL switches are required where reduced-stroke buffers
are used. Primary ETS/ETSL switches can either be “virtual” or “physical cam-operated
switches”. Optional ETS-LS magnets can be used as a backup to the primary switches. If the
installation includes reduced stroke buffers (rated for less than contract speed), some jurisdic-
tions may
require
the ETSL switches to be of the cam-operated type. Use one of the following
procedures to determine and learn the optimal location/placement of the virtual switches,
physical switches and/or magnets.
NTS/ETS Switches with Full Stroke Buffers
Virtual NTS/ETS (Landing system position count)
Use this procedure to learn
the positions of the virtual NTS/ETS switches.
1. Calculate the ETS % to use for terminal switch learn by dividing the buffer rated speed
by the actual car contract speed times 0.91 = _____. For example 200 fpm/350 fpm x
0.91 = ETS % = 052. For contract speed rated buffers enter 091 for ETS %.
2. Place the car on MACHINE RM INSPECTION (INSP/NORM switch = INSP), and move
the car to the bottom terminal landing.
3. Select CONFIG 02 > ETS SWITCHES. Verify/set U/DETS-LS OPTION = NO and U/
DETS OPTION = VIRTUAL. Press SAVE, if changes were made, and EXIT.
4. Select UTILS > LANDING SYSTEM UTILITIES > TERMINAL SWITCH LEARN. Press
NEXT twice. Enter the value for ETS% calculated in step 1. Press ENTER.
5. Press NEXT twice. The car will travel up to learn the top terminal limits. Press NEXT
again. The car will travel down to learn the bottom terminal limits.
6. At the end of the learn operation, observe and record UETS position ____ inches and
speed ____ FPM. Also record DETS position____ inches and speed____ FPM.
7. Select CONFIG 02 > ETS SWITCHES. View UTS SPEED and DETS SPEED and confirm
that the values match the values determined in step 6.
8. If ETS-LS Magnets are to be used as a backup, proceed to step 14.
Physical ETS (Cam-operated switches)
Use this procedure if the primary ETS
switches are physical cam-operated switches. Where reduced-stroke buffers are used, some
jurisdictions (e.g., TSSA) may require the ETSL switches to be of the cam-operated type. First
perform steps 1 through 6 above. Then continue with step 9.
9. Install the physical switches at the UETS and DETS positions recorded in step 6.
10. Select CONFIG 02 > ETS SWITCHES. Set U/DETS OPTION = PHYSICAL. Press SAVE
and EXIT.
11. Relearn the limits (repeat steps 4 and 5). Observe and record UETS position ____
inches and speed ___FPM. Also record DETS position____ inches and speed___FPM.
12. Select CONFIG 02 > ETS SWITCHES. View UTS SPEED and DTS SPEED and confirm
that the values are close to the values determined in step 6.
13. If ETS-LS Magnets are to be used as a backup, proceed to step 14.
