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7. TRIMPOT ADJUSTMENTS
The control contains trimpots which have been factory set for most applications. Figure 2-3 illustrates the
location of the trimpots and their approximate factory set positions. Some applications may require
readjustment of the trimpots in order to set the control for a specific requirement. See Table 1-5 for range and
factory setting of all trimpots. The trimpots may be readjusted as follows.
WARNING! IF POSSIBLE, DO NOT ADJUST TRIMPOTS WITH THE MAIN POWER APPLIED.
IF ADJUSTMENTS ARE MADE WITH THE MAIN POWER APPLIED, AN
INSULATED ADJUSTMENT TOOL MUST BE USED AND SAFETY GLASSES MUST
BE WORN. HIGH VOLTAGE EXISTS IN THIS CONTROL. ELECTROCUTION CAN
RESULT IF CAUTION IS NOT EXERCISED. SAFETY NOTICES AND MUST BE
READ AND UNDERSTOOD BEFORE PROCEEDING.
7.1 Acceleration Trimpot (ACCEL)
The ACCEL Trimpot is provided to allow for a smooth start over an adjustable time period each time the
AC power is applied or the Main Speed Potentiometer is adjusted to a higher speed. The ACCEL
Trimpot is factory set to 2 seconds, which is the amount of time it will take for the motor to accelerate
from zero speed to full speed. To increase the acceleration time, rotate the ACCEL Trimpot clockwise. To
decrease the acceleration time, rotate the ACCEL Trimpot counterclockwise. The ACCEL Trimpot range
is 0.2 – 10 seconds.
See Figure 7-1.
Figure 7-1 Accel Trimpot Range
