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Power
MX3650-01 Rev. D
17
Connecting DC Power
To connect the DC power:
1. Turn off the DC and AC power switches.
2. Slide the plastic cover off the control box.
3. Attach the red spade connector to the battery
terminal on the DC power switch.
Turning the Power Switch ON
When both DC and AC power switches are turned ON:
• The barrier arm travels open and initiates a target
search. StrongArmPark DC senses the arm position
and establishes its open and close limits. No
physical limit switches exist. Limits are automatically learned and remain intact even if AC power is lost
and the batteries are fully drained. The only exception occurs when factory defaults are reinstated, or
the Smart DC Controller is replaced. For more information about Learn Limits and Menu modes, refer
to
Display & Menu Options on page 19
.
• A green status LED appears on the Smart DC Controller and remains static. The status light appears
above the display and indicates that the processor is receiving power.
NOTE:
The Smart DC Controller can be powered when either switch is turned on. However, the operator is a DC-powered unit and
runs on its batteries. If the DC power switch is off, the operator will not function (even though the AC power switch is on). When the
operator is connected to AC power and the both AC and DC power switches are turned on, the charge level of the battery is being
monitored and maintained. On a solar-powered operator, the AC power switch connects and disconnects the DC power from the
solar panels.
The flashing red indicator light next to the OPEN button on the Smart DC Controller is considered the heart
beat of the system. It indicates that the electronics board is receiving power. When AC power is lost, the rate of
flashing slows down. Another indicator light, above the display, is multi-colored and corresponds to the action
that the operator is performing:
• Green - the operator is stopped.
• Flashing yellow - the operator is running.
• Red - the operator has experienced an
error.
• Not lit - AC power is lost. Pressing the
SHOW LEDs button indicates which
inputs, if any, are active. Refer to Figure
4-2 for the SHOW LEDs location on the
board.
Red spade
connector
Status light
PREV
OPEN
NEXT
SELECT
CLOSE
STOP
MENU
RESET
Green LED
Red LED
flashes
indicating
processor is
working.