High Speed Troubleshooting/Sequence Of Operations - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

13.3 High Speed Troubleshooting / Sequence of Operations
At this time it will be necessary to run the microprocessor.
The status of inputs represented on the screen typically coincide with the status of the redundant
relay associated with it. In other words, if the DG relay is energized, the DG input is highlighted on the
screen. Some inputs on the screen are purposely done in reverse video for safety reasons. The SAF
(safety circuit verification), INSP (inspection operation), REG ( Regulator/ Drive Trip), MGS (MG
start), LIM (Limit Board Trip). It is important to note the following about these inputs:
•
When the SAF input is lit on the screen, the safety string is open.
•
When the DCL input is lit on the screen, the doors are fully closed.
•
When the DOL input is lit on the screen, the doors are fully open.
•
When the INSP input is lit on the screen, the car is on inspection.
•
When the LIM input is lit on the screen, the limit board is tripped.
•
When the REG input is lit on the screen, the Motor Drive system is faulted.
Note:
Inputs DCL, DOL and EE can be seen reversed by the processor. There are parameters
which allow you to change the polarity of the input, either normally open or normally closed.
Refer to the parameter explanations in section 11.7 for more details.
MG Jobs Only
•
When the MGSH input is lit on the screen, the MG switch is off.
•
When the GIN input is lit, the generator has transferred to the delta, or run mode.
IMPORTANT NOTE: The following procedure assumes that the car runs on inspection operation as
outlined in the inspection troubleshooting procedure. Car should be on inspection on the controller
with the door disable switch to the disable position.
1. Check the fault log on the controller.
-Any faults which are causing the car not to run? If in doubt, reset MPU
and see if car runs.
2. Run the car on inspection using the up/dn toggle switch. Does BKR input on monitor
change state when the brake lifts?
-Faulty brake switch contact, line 145.
-Faulty BKR input opto-isolator at line 145.
3. Does the encoder present value on the monitor increase as the car runs up and
decrease as the car runs down?
-Faulty encoder or stick assembly, line 211.
4. Does the actual car speed as shown on the monitor agree with the observed speed of
the hoist motor?
-Faulty encoder sensor at line 218.
5. Does the DZ relay pick when passing a door zone?
-Faulty encoder sensor at line 218.
- Missing door zone magnets.
- Faulty encoder board at line 211.
6. Does the DZ input on the monitor turn on when the DZ relay picks?
-Faulty DZ input opto-isolator at line 136.
Revision: AA 2.2
Microflite Ultra 2000
Printed 03 - 15 - 03 13 - 16