Configuration and Troubleshooting
2-90 Manual # 42-02-2P26
USL1 Position Low (402) Car encountered USL1 switch at a position lower than that learned during
the learn operation. The car will perform an emergency slowdown then
proceed at correction speed to the landing.
Correction:
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL1 Speed High-Lower (391) Traction Only. The car was travelling faster than the learned speed upon
encountering the USL1 switch. The car will perform an emergency slow-
down then proceed at correction speed to the landing.
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL1 Speed High-Upper (392) Traction Only. The car was travelling faster than the learned speed plus
the delta upon encountering the USL1 switch. The car will perform an
emergency stop then proceed at correction speed to the terminal.
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL2 Position High (405) Traction Only. The car encountered the USL2 switch at a position higher
than that learned during the learn operation. The car will perform an
emergency slowdown then proceed at correction speed to the landing.
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL2 Position Low (404) The car encountered the USL2 switch at a position lower than that
learned during the learn operation. The car will perform an emergency
slowdown then proceed at correction speed to the landing.
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL2 Speed High-Lower (393) Traction Only. Car travelling faster than learned speed upon encountering
USL2 switch. Car performs emergency slowdown then proceeds at cor-
rection speed to landing
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
USL2 Speed High-Upper (394) Traction Only. Car travelling faster than learned speed plus delta upon
encountering USL2 switch. Car will perform emergency stop then proceed
at correction speed to terminal.
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
Table 2.15 Touch Screen Event Listings
Event Description
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