One Floor Up & Down; Two Floor Up & Down; Multi-Floor Up & Down; 7A.3 High Speed Adjustment - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

Microflite Ultra 2000 - Magnetek DSD 412 DC Drive
18. Install a TEMPORARY jumper from J3-1 to J7-1.
Install a TEMPORARY jumper from J3-2 to J7-2.
19.
7a.2.1 One Floor Up & Down
Make a one floor run up and a one floor run down in the middle of the hoistway.
Referring to Section 11.7 - Parameters, adjust motion parameters to get desired ride.
Note: Stay away from terminal floors.
7a.2.2 Two Floor Up & Down
Make a two floor run up and a two floor run down in the middle of the hoistway.
Referring to Section 11.7 - Parameters, adjust motion parameters to get desired ride.
Note: Stay away from terminal floors.
7a.2.3 Multi-Floor Up & Down
Make a multi-floor run up and a multi-floor run down in the middle of the hoistway.
Referring to Section 11.7 - Parameters, adjust SPEED CURVE parameter to get
desired ride. Continue making multi-floor runs until the system demands contract
speed.
Note: Stay away from terminal floors.

7a.3 High Speed Adjustment

Place a digital volt meter on MPU board terminals MJ7-1 (positive) to MJ7-2 (negative).
1.
2. Run the car from the bottom floor to the top floor. Verify that the speed reference signal
to the drive is +7.00 volts when at full speed. If not, adjust pot R25 on the MPU board
to obtain +7.00 volts.
Run the car from the top floor to the bottom floor. Observe the meter. The voltage
3.
should be -7.00 volts. If not, adjust MPU pot R28 to obtain an equal voltage, but of
opposite polarity, while the car is running up and down.
Note: It may be easier to adjust the R28 pot while the car is in leveling speed.
TEMPORARILY set the "ADVANCE COUNTS" parameter in the motion parameter screen
to 90. Run the car and adjust R28 to obtain the same speed reference but opposite
polarity while the car is leveling up and down.
If pot R28 was changed, it will be necessary to adjust pot R25 again. Verify that the
4.
voltage to the drive is +7.00 volts in the up direction, and -7.00 volts in the down.
Observe the diagnostic screen on the monitor. Check that the actual car speed as
5.
shown on the monitor is contract speed of the car. If not, adjust the MOTOR RPM
parameter (#11) to obtain as close contract speed as possible.
6. On gearless machines, modify parameter 16, Gearless Ratio, to obtain exact contract
speed from the machine.
Revision: AA 2.2 Printed 03 - 15 - 03 7a - 3