Electronics LP-24 - Manual (Page 13)

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The last step of the installation is to adjust the AC-24 controller to the same operating amperage not-
ed before at the beginning of the installation, 24 amps. Push and hold the Setpoint and press the
Down arrow until the value 24.0 appears in the display. Release the keypad and notice that the dis-
play returns to show the no load amperage. Activate the MagnaValve, either by pressing the Mode
keypad to the on position or pressing the Mode keypad to the Ready position and activate the blast
machine automatic cycle. The green ON LED on the front of the AC-24 controller will come on and
the green VALVE ON LED on the valve will start to blink, indicating that the valve is receiving power
pulses to allow shot to flow. After a few seconds the motor current will rise to the setpoint value, in
this case 24.0 amps. It is normal for the digital display to vary by +/- 0.2 amps. If the variation is
greater than this refer to the installation manual for the AC-24 controller.
This installation also included an alarm horn and a highly visible pedestal mounted light stalk with
green indicator to indicate shot flow and a red blinking indicator to show an alarm condition (such as
low shot flow). The elapsed meter for “abrasive on” time was included to verify the increased
productivity and reduced downtime.