Motion Control Engineering 2000 Manual page 193

Status and Error Messages
Table 6.1 Status and Error Messages
Scrolling Message - Special Event Message
AUXILIARY STARTER TIMEOUT
Description: One of the auxiliary starters did not start properly.
Troubleshooting: On a solid state starter, the DR1 input did not go high within the time pro-
grammed in the UP TO SPEED TIMER parameter (1.0 - 8.0 sec).
BATTERY BACKUP POWER SYSTEM FAULT
Description: The battery lowering system has fault.
Troubleshooting:
1. Check proper operation of the battery lowering system.
BATTERY POWER CAR RECALL ACTIVATED
Description: The battery lowering system has been activated.
Troubleshooting:
1. Normal operation during commercial power failure.
BOTTOM ACCESS SW. FAILURE (CTLB)
Description: The Up and Down Bottom Access inputs are active at the same time.
Troubleshooting: Check the wiring and switches associated with the ABU and ABD inputs.
BOTTOM FLOOR OR TOP FLOOR DEMAND
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Description: The controller is trying to establish the position of the car by sending it to either the
top or the bottom. Usually associated with bottom floor demand. Bottom Floor Demand has four
possible causes:
1. A change from Inspection to Automatic operation.
2. Pressing the COMPUTER RESET button.
3. Initial Power-up.
4. If the car is at the top floor, and the controller gets an up slow down signal (USD), the controller
will create a Bottom Floor Demand.
Troubleshooting: Bottom Floor Demand should be cleared when all of the following conditions are
met:
1. The car is at the bottom and the down slow down (DSD) input to the controller is OFF (because
the switch should be open).
2. The Door Zone (DZ) input to the controller is ON.
3. The Door Lock (DLK) input to the controller is ON.
If the car is at the bottom, and the message still flashes, check the Down Slow Down switch &
associated wiring. Also, inspect the door zone landing system vane or magnet at the bottom floor
and the door lock circuit.
Top Floor Demand should be cleared when all of the following conditions are met:
1. The car is at the top and the up slow down (USD) input to the controller is OFF (because the
switch should be open).
2. The Door Zone (DZ) input to the controller is ON.
3. The Door Lock (DLK) input to the controller is ON.
If the car is at the top, and the message still flashes, inspect the Up Slow Down Switch & associated
wiring. Also, inspect the door zone landing system vane or magnet at the top floor and the door
lock circuit.
NOTE: If the controller has the absolute floor encoding feature, then the Bottom and Top Floor
Demands should be cleared when the car stops in any door zone. The car does not have to travel to
the top or bottom.
CAPTURE FOR TEST
Description: CTST input has been activated.
Troubleshooting: Go into Program Mode. Check the spare inputs to see if any are programmed as
CTST. Ensure that this input is NOT activated.
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