6Operating the Pump Motor in the RUNNING Display Mode
500Ω LED
Aux Out V+
+
9Volts
–
Aux Out Gnd
Figure 6-10. Schematic of Auxiliary Out Circuit
1.Connect the circuit shown to the Auxiliary Out terminals with the motor stopped.
2.Press the START/STOP key. The motor starts, and the LED in the circuit goes off.
3.Press the START/STOP key. The motor stops, and the LED in the circuit lights up.
6.6.2Auxiliary In (Remote Start/Stop)
The Auxiliary In function allows you to remotely start and stop the pump motor. The Auxiliary In terminals are located near the bottom, on the back of the pump motor, next to the Auxiliary Out terminals.
1.Momentarily short the Auxiliary In V+ terminal to the Auxiliary In Ground terminal. The pump starts. The display enters the RUNNING Display Mode.
2.Momentarily short the Auxiliary In V+ terminal to the Auxiliary In Ground terminal. The pump stops. The display enters the STOPPED Display Mode.
NOTE
The momentary shorting action may be achieved with proper TTL or CMOS circuitry.
