Phasetronics
Page 18
8. The unit should switch on. If the unit fails to come on, adjust the Current Trip pot R42 slightly
counter clockwise to decrease the sensitivity and momentarily press the reset button again.
9. Repeat this process until the unit will remain on after a reset.
6.5 Current Trip
(Option “KF”) Start-up
1. This section assumes the regular start up in sections 6.1 and/or 6.2 have been successfully
completed and the current/volt meters are still connected.
2. Verify the Current Trip potentiometer P6 is set fully clockwise (Maximum)
3. Select the Long or Short, Current Trip Reset Time range jumper X1 or X2 (See section 7).
4. Set the Current Trip Reset Time potentiometer P7 to mid-scale.
5. Energize the unit.
6. Increase the manual pot or automatic control signals to maximum.
7. Verify the units output is at maximum.
8. Monitor the Voltage and Current meters and slowly turn the Current Trip Pot (P6) counter
clockwise (decrease) until the units output abruptly drops to zero.
9. Allow the Auto Reset Time to expire while monitoring the output voltage.
10. At the end of the Auto Reset Time, the unit will ramp the output voltage to the command level.
11. The unit may trip again during the ramp up. If this occurs, increase the Current Trip adjustment
a small amount and allow the Auto Reset Timer to cycle again.
12. Repeat this process until the unit can ramp to 100% power without a Current Trip.
13. Decrease the command signal to minimum.
14. Increase the command signal again to maximum. If the unit trips again, increase the Current Trip
adjustment slightly and repeat the Reset process until the unit can reach full output.
6.6 Soft Start
(Option “B-H” and “KB-KH”)
Start-up
This section assumes the regular start up in sections 6.1 and/or 6.2 have been successfully completed
and the current/volt meters are still connected.
6.6.1 Option B-E
1. Option B thru E soft start is active only during power up.
2. Preset the Soft start potentiometer R46 to mid scale.
3. Remove power from the unit and wait one minute.
4. Increase the command signal (Manual or Automatic) to maximum.
5. While monitoring the volt meter, apply power to the unit and time how long it takes the unit to
reach maximum output.
6. Adjust R46 counter clockwise to decrease the soft start time or clockwise to increase the soft
start time.
7. Repeat steps 3 thru 6 until the desired soft start time is reached.
