Counterweight Buffer Test; Car Buffer Test - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

10.3

Counterweight Buffer Test

Note:
On higher speed cars (700 fpm or higher), it is sometimes best to tie down the car
safety arm for this test as the car may bounce in the overhead and set the car
safeties and become lodged in the overhead.
Place the car 3 - 5 floors below the top landing.
1.
2. Go to Page 12 of the Parameters (Floor Landing Values)
Move the cursor to the top floor position and write down the current count.
3.
Add 5000 counts to the top floor position count.
4.
5. Go back to the main parameter screen and save the new temporary value.
6. Place temporary jumpers between the SF1 & SF2 and SF3 & SF4 terminals on the
limit board to prevent the limit board from stopping the car.
7. Remove the connectors and place temporary jumpers from Speed Ref In + to Speed
Ref Out +, and Speed Ref In - to Speed Ref Out -.
Put a call in for the top floor. The car will continue into the overhead, compressing the
8.
counterweight buffer.
9. Immediately place the car on inspection. Remove the temporary jumpers from the limit
board.
10. Check that the compensating sheave has not come out of its rails if applicable.
Go back to the Floor Landing Values Screen and put the original floor count for the top
11.
floor in the top floor position. Remember to write the value to non-volatile memory
before putting the car back in automatic.
12. Run the car on inspection down to one floor below the top floor.
Put the car back in automatic and place a call for the top floor. Make sure the car
13.
makes a normal stop and comes into the top floor level.
10.4

Car Buffer Test

Note:
On higher speed cars (700 fpm or higher), it is sometimes best to tie down the
counterweight safety arm for this test as the counterweight may bounce in the
overhead and set the counterweight safeties and become lodged in the overhead.
1. Place the car 3 - 5 floors above the bottom landing.
Go to Page 12 of the Parameters (Floor Landing Values)
2.
3. Move the cursor to the bottom floor position and write down the current count (should
be 2000).
Change the bottom floor position count to 100.
4.
5. Go back to the main parameter screen and save the new temporary value.
6. Place a temporary jumper between the SF1 & SF2 and SF3 & SF4 terminals on the
limit board to prevent the limit board from stopping the car.
7. Remove the connectors and place temporary jumpers from Speed Ref In + to Speed
Ref Out +, and Speed Ref In - to Speed Ref Out -.
Put a call in for the bottom floor. The car will continue into the pit, compressing the car
8.
Revision: AA 2.2
Microflite Ultra 2000
Printed 03 - 15 - 03 10 - 2