Elkhart Brass 2900E Series - Manual (Page 6)

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B. Indicator Light Signals:
The valve controller/position indicator module (81384001) uses three high intensity
LED’s, red, amber, and green, for reliable status indication under all ambient lighting
conditions. These LED’s provide the following signals to the operator:
SIGNAL MEANING
Steady lit red Valve ball in the fully closed position
Steady lit green Valve ball in the fully open position
Steady lit amber Valve ball is in a throttled position
Steady lit amber with flashing green Valve ball is moving toward the open position
Steady lit amber with flashing red Valve ball is moving toward the closed position
C. Other Control Features:
Low Voltage Protection:
Should the valve power source voltage ever drop to six volts or less, the control module
automatically prevents application of power to the motor. Low voltage conditions can
cause serious damage to DC motors.
Automatic Power Off:
If the valve becomes jammed (ice, debris, or any other reason) while the valve is in Auto-
Travel, this feature will automatically shut off motor power after fifteen seconds.
Manual Valve Actuation:
If valve motor power fails for any reason, the valve can be opened or closed manually.
Manual actuation is accomplished by turning the hex fitting on the end of the worm drive
shaft opposite the motor. Turning the hex fitting clockwise will open the valve, while
turning it counterclockwise will close the valve. A ¾” ratchet box end, standard box end
or open-end wrench is recommended for this purpose.
Reverse Polarity Protection:
The circuitry within the 81384001 control module is designed to be immune to the effects
of reversed polarity of the incoming power. If polarity is reversed at the time of system
installation or any time during system maintenance or troubleshooting, no damage will
result. None of the LED’s will light up and the unit will not function during polarity
reversal.
NOTE: DO NOT use any motorized or air actuated devices to drive the hex fitting.
This will void all warranties.