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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.
6.6.2 Auxiliary 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.
The momentary shorting action may be achieved with proper TTL or CMOS
circuitry.
Aux Out V+
Aux Out Gnd
9Volts
+
–
500Ω
LED
Operating the Pump Motor in the RUNNING Display Mode
6
6-22
NOTE