- 127 -
5 Troubleshooting
5
Chapter 5 Troubleshooting
5.1 Description of Fault Levels
The NICE3000
new
has almost 70 pieces of alarm information and protective functions. It monitors various
input signals, running conditions and feedback signals. If a fault occurs, the system implements the relevant
protective function and displays the fault code.
The controller is a complicated electronic control system and the displayed fault information is graded into
īæve levels according to the severity. The faults of different levels are handled according to the following
table.
Table 5-1 Fault levels
Category Action Remarks
Level 1
1. Display the fault code.
2. Output the fault relay action command.
1A: The elevator running is not affected on any
condition.
Level 2
1. Display fault code.
2. Output the fault relay action command.
3. Continue normal running of the
elevator.
2A: The parallel/group control function is disabled.
2B: The door pre-open/re-leveling function is disabled.
Level 3
1. Display the fault code.
2. Output the fault relay action command.
3. Stop output and apply the brake
immediately after stop.
3A: In low-speed running, the elevator stops at special
deceleration rate, and cannot restart.
3B: In low-speed running, the elevator does not stop.
In normal-speed running, the elevator stops, and then
can start running at low speed after a delay of 3s.
Level 4
1. Display the fault code.
2. Output the fault relay action command.
3. In distance control, the elevator
decelerates to stop and cannot run
again.
4A: In low-speed running, the elevator stops under
special deceleration rate, and cannot restart.
4B: In low-speed running, the elevator does not stop.
In normal-speed running, the elevator stops, and then
can start running at low speed after a delay of 3s.
4C: In low-speed running, the elevator does not stop.
In normal-speed running, the elevator stops, and then
can start running at low speed after a delay of 3s.
Level 5
1. Display the fault code.
2. Output the fault relay action command.
3. The elevator stops immediately.
5A: In low-speed running, the elevator stops
immediately and cannot restart.
5B: In low-speed running, the elevator does not stop.
In normal-speed running, the elevator stops, and then
can start running at low speed after a delay of 3s.