The Computer
5-48 Manual # 42-02-1P28 A3
Event and Fault Message Descriptions
The following is a list of Events and Status Messages that can be displayed on the second line of
the Mode of Operation box on the Home screen, and in the Event Log screen.
Table 5.10 Touch Screen Event Listings
Event Description
2 BUS IS LOW (119)
2 BUS IS LOW (496)
Description: 2 Bus (120VAC) monitoring input is low. Cannot be bypassed.
Check fuse F2 on SCE-UPD board.
Verify 120VAC across terminals X1B and X2B on the SCE-UPD.
2FS BUS IS LOW (497) Description: 2FS bus (120CVAC) monitoring input is low.
Troubleshooting: Check 2 bus fuses.
2HA BUS IS LOW (498) Description: 2HA bus (120CVAC) monitoring input is low.
Troubleshooting: Check 2 bus fuses
2MV BUS IS LOW (499) Description: 2MV bus (120CVAC) monitoring input is low.
Troubleshooting: Check 2 bus fuses
3HN COMM LOSS (160) Communication to the serial hall call bus is lost
ABD INPUT FAILURE (482) Description: The Bottom Down Access (ABD) switch is high when 2HA bus
is low.
1. Check for incorrect wiring or short on the HC-CTL-2 board ABU input and
2HA or 2 bus.
2. Check the bottom access switch and associated wiring per the job prints.
ABU INPUT FAILURE(481) Description: The Hoistway Access Bottom Up (ABU) switch is high when
2HA bus is low.
1. Check for incorrect wiring or short on the HC-CTL-2 board ABU input and
2HA or 2 bus.
2. Check the bottom access switch and associated wiring per the job prints.
ATD INPUT FAILURE (480) Description: The Top Down Access (ATD) switch is high when 2HA bus is
low.
1. Check for incorrect wiring or short on the HC-CTL-2 board ATD input and
2HA or 2 bus.
2. Check the top access switch and associated wiring per the job prints.
ATU INPUT FAILURE (479) Description: The Top Up Access (ATU) switch is high when 2HA bus is low.
1. Check for incorrect wiring or short on the HC-CTL-2 board ATU input and
2HA or 2 bus.
2. Check the top access switch and associated wiring per the job prints.
ATTENDANT SERVICE (770) Description: The car is on attendant operation. The attendant service
input (ATS) is activated.
AUTOSTOP (774) Description: Autostop is enabled. The car will stop and cycle the doors and
the specified floor/direction whenever the car passes that floor.
AUX POWER: COMPLETE (51) Description: The car has completed lowering/recall under auxiliary power
(HAPS). Cannot be bypassed.
System Verifies:
- Aux Power Data = APS Recall Done
- APS Done output true
Troubleshooting:
If in error, verify the status of the spare input programmed for APS.
AUX POWER: FAIL (52) Description: The car has failed to recall under auxiliary power. Fault-
bypassed in Construction/Inspection.
System Verifies: - Aux Power Data = APS Recall Fail
Troubleshooting:
Verify car is not obstructed. Verify doors closed.
Check function of HAPS or TAPS unit.
To Next Page
Loading...
