Counterweight Governor Overspeed Test - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

Inch the car up until the governor jaw can be reset.
12.
13. Untie the car governor jaw and reset the latch.
Remove the temporary jumper placed across the governor overspeed switch.
14.
15. Remove the temporary jumpers from the Limit board.
16. Restore the Motor RPM parameter to its correct value, or reset SW1 on the Amicon
regulator.
10.6 Counterweight Governor Overspeed Test (If Applicable)
Note:
If the Ultra 2000 "OVERSPEED" parameter is set, you will need to change this to a
value equal to approximately 150% of contract speed to perform the normal
overspeed tests for your local inspectors. This parameter should be set back to
110% of contract speed after this test is complete.
Bring the car to a floor above the bottom floor where there is enough room to
1.
accelerate to a speed which will trip the governor. It is best to perform this test toward
the bottom of the hoistway so if the safety does not release, it can be easily accessed.
TEMPORARILY set the Motor RPM parameter in the drive to 150% of its present value.
2.
(Parameter 11 on the Magnetek DSD 412 DC drive, and CONTRACT MTR SPD in the
Magnetek AC drive). On the Amicon generator shunt field regulator, set the SW1 dip
switches to their next highest setting. See page 6c-8 for switch settings.
Tie the Car governor jaw up to prevent it from dropping.
3.
4. Place a temporary jumper across the car governor overspeed switch.
Place a temporary jumper between the SF1 & SF2 and SF3 & SF4 terminals on the
5.
limit board to prevent the limit board from stopping the car.
Remove the connectors and place temporary jumpers from Speed Ref In + to Speed
6.
Ref Out +, and Speed Ref In - to Speed Ref Out -.
Put the main line power on. Run the car to the bottom floor. Place a call such that the
7.
car will reach top speed for a long period of time. Do not place a call any closer than
three floors from the top.
The car will accelerate past contract speed until the governor trips. Immediately place
8.
the car on inspection.
Check that the comp sheave has not come out of its rails, if applicable.
9.
Check the car, cab, and counterweight for damage
10.
11. Reset the car and counterweight governor overspeed switches.
Inch the car down until the counterweight governor jaw can be reset.
12.
13. Untie the car governor jaw and reset the latch.
14. Remove the temporary jumper placed across the car governor overspeed switch.
Remove the temporary jumpers from the Limit board.
15.
16. Restore the Motor RPM parameter to its correct value, or reset SW1 on the Amicon
regulator.
Revision: AA 2.2
Microflite Ultra 2000
Printed 03 - 15 - 03 10 - 4