Configuration and Troubleshooting
2-64 Manual # 42-02-2P26
DSL2 Speed High-Lower (398)
Traction only. The car was travelling faster than the learned speed upon
encountering the DSL2 switch. The car will perform an emergency slow-
down 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).
DSL2 Speed High-Upper (399)
Traction only. The car was travelling faster than the learned speed plus
the delta upon encountering the DSL2 switch. The car will perform an
emergency stop then proceed at correction speed to the terminal.
Correction:
1. Verify position of switch (software or physical).
2. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
DTL and USLx Are Low (314)
The Down Terminal Limit switch and the named Up Slow Limit are both
low (open); both cannot be low at the same time. The car will stop at the
next floor, cancel all calls, cycle doors to allow passengers to exit, and
will not be allowed to move. Fault-bypassed in Construction.
System Verifies:
- Limit inputs DTL and USL low.
- 2 bus has power.
Correction:
1. Verify switches mechanically and electrically.
2. Verify input connections.
3. View touchscreen landing system flags for correct status.
4. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
DTL is Low (155)
The Down Terminal Limit switch has opened. If moving down, the car will
perform an emergency stop. This switch should not open unless the car
overshoots the terminal and opens the switch. The open switch prevents
further movement towards the terminal. Cannot be bypassed.
System Verifies:
- 2 bus has power.
- DTL input is low.
Correction:
1. If in error, verify switches and connections mechanically and electri-
cally.
2. Use System Diag > Landing System to check the state of the switch.
3. Repeat learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
Duplicate Car ID (379)
Same ID has been assigned to more than one car. Event is informational.
Duplicate Dispatcher (382)
Both cars in a duplex have been assigned the dispatcher role.
DZF Output Fault (Edge) (215)
Measured DZ and the 24VDC discrete DZ do not match. Fault-bypassed
in Construction/Inspection.
System Verifies:
- LS-EDGE-EL is the selected landing system.
Correction:
1. Check for back-fed wires at the cartop board.
2. When reader is sensing a DZ magnet (DZ LED on the reader is on),
there should be 24VDC at the DZ terminal.
3. Conversely, there should be about 0VDC at the DZ terminal when
reader is not sensing DZ.
Table 2.15 Touch Screen Event Listings
Event
Description
