Section 7A; High Speed Adjustment - Magnetek Dsd 412; 7A.2 Initial Set - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

Microflite Ultra 2000 - Magnetek DSD 412 DC Drive

Section 7a

High Speed Adjustment - Magnetek DSD 412

7a.1 Final System Checks Prior to High Speed Adjusting
1. Verify that all safety circuits are operative and that each device in the string will prevent
the car from starting or continuing to run.
2. Verify that all hoistway door interlocks function properly both electrically and
mechanically.
3. Verify that hoistway access circuits function according to your local applicable codes.
4. Verify that the car gate is set and functions properly according to local applicable
codes.
5. On inspection, run the car to both extreme limits of travel to insure there is adequate pit
and overhead clearance for both the car and counterweight in the event the car or
counterweight should go onto their buffers during the initial adjustment process.
6. Verify that the electrical neutral of the hoist motor is set properly.
7. Set the up and down directional limits to open when the car is 1" beyond floor level at
the top and bottom terminal floors.
8. Set the final limits to open when the car is 6" beyond floor level at the top and bottom
terminal floors.
Verify the power wiring on the encoder electronics power supply and insure the D8 LED
9.
is on continuously on the encoder electronics board.
10. While riding on the car top on inspection, verify as the car travels up past the last top
terminal slowdown that the D5 LED on the encoder electronics board turns on. If it does
not, check the terminal slowdown wiring to the limit board and to the encoder
electronics board.
11. While riding on the car top on inspection, verify as the car travels down past the last
bottom terminal slowdown that the D6 LED on the encoder electronics board turns on.
If it does not, check the terminal slowdown wiring to the limit board and to the encoder
electronics board.
Verify that the terminal slowdown limit switches are set according to the tables in
12.
section 8.
13. On the car top, verify that all encoder and pretorque cables are securely plugged in
inside the encoder electronics box.
14. On the car top, verify that all thumb screws on the cable from the sensor stick to the
encoder electronics box are fastened securely to the boxes at each end.
7a.2 Initial Set Up
1. Place the car in the center of the hoistway. Mark the cables with chalk when the car
crosshead and the counterweight crosshead are exactly adjacent to each other.
Revision: AA 2.2 Printed 03 - 15 - 03 7a - 1