P34AL-15 & P34ALOF-15 Service Manual
Options and Accessories
9/22/05
10-15
Reduced Voltage (Soft-Start) Cutter Motor Starters
Several Vogt Tube-Ice machine models are available from the factory with a reduced voltage “soft”
cutter motor starters. These units reduce inrush current to approximately 200% of rated full load
amps, as compared to 600% for across the line start. The units are also available for after market or
retrofit installation. The soft starters include a NEMA 12 (water tight) enclosure, and should be
mounted near the control panel.
Initial Torque Adjustment
The initial Torque adjustment is factory preset for maximum torque (maximum starting voltage).
1. Rotate the START TIME adjustment fully clockwise (to 100) so that the longest starting time is
obtained.
2. Rotate the INITIAL TORQUE adjustment to midrange on the dial (50), to lower the starting
torque.
3. Start the motor. If more or less torque is required to break the load free, turn off the power, rotate
the INITIAL TORQUE adjustment in the appropriate direction until the load just begins to move
when power is first applied.
Start Time Adjustment
The START TIME adjustment range is 1/2 to 30 seconds for a motor voltage from 10% to 100% of
line voltage. The higher the value of the INITIAL TORQUE, the shorter the duration of the overall
time period. In most applications it is desirable to start the motor as quickly as possible without
causing unnecessarily high inrush currents.
1. During the INITIAL TORQUE adjustment process, the START TIME was adjusted for the
longest start possible. If a shorter time is desired, rotate the adjustment toward 0
(counterclockwise).
2. Start the motor and determine if the soft start is acceptable. If not, continue to rotate the start
time adjustment until an acceptable start is obtained.
Note: The soft starter should be adjusted to bring the cutter up to full speed in 10 to 15 seconds.
Any longer than this will not obtain a further reduction in starting current.
Wiring
The soft starter should be wired in series between the cutter motor contactor and the compressor.
Summary of Contents for P-34AL-15
Page 1: ...P 34AL 15 P34ALOF 15 TUBE ICE MACHINE Service Manual 5000 9 22 05 ...
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Page 14: ...P34AL 15 P34ALOF 15 Service Manual TABLE OF CONTENTS vi ...
Page 19: ...P34AL 15 P34ALOF 15 Service Manual INTRODUCTION 9 22 05 1 5 FIGURE 1 2 P34AL 15 Right Side ...
Page 20: ...P34AL 15 P34ALOF 15 Service Manual INTRODUCTION 9 22 05 1 6 FIGURE 1 3 P34AL 15 Left Side ...
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Page 23: ...P34AL 15 P34ALOF 15 Service Manual INTRODUCTION 9 22 05 1 9 FIGURE 1 6 P34ALOF 15 Left Side ...
Page 24: ...P34AL 15 P34ALOF 15 Service Manual INTRODUCTION 9 22 05 1 10 ...
Page 50: ...P34AL 15 P34ALOF 15 Service Manual INSTALLING YOUR TUBE ICE MACHINE 9 22 05 3 24 ...
Page 62: ...P34AL 15 P34ALOF 15 Service Manual START UP OPERATION 9 22 05 5 8 ...
Page 88: ...P34AL 15 P34ALOF 15 Service Manual TROUBLESHOOTING 9 22 05 8 13 ...
Page 130: ...P34AL 15 P34ALOF 15 Service Manual Options and Accessories 9 22 05 10 16 ...
Page 131: ...P34AL 15 P34ALOF 15 Service Manual TABLES CHARTS 9 22 05 11 1 11 Tables Charts ...
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