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6.0 Operation
After the Relay Driver has been programmed, mounted, and wired into
the system, there are few operator tasks to perform. This section
provides information pertaining to the normal operation and
maintenance of the Relay Driver.
6.1 LED Indications
Start-up
WARNING: Equipment Damage
When power is applied, all four (4) channels are immediately
energized for ~one (1) millisecond before transitioning to an OFF
state. Take great care to have sensitive loads disconnected before
applying power to the Relay Driver.
Upon power-up, each of the Relay Driver's four channel LEDs will blink
in sequence – this signifies that initial start-up/boot has occurred.
Power LED
Green ON: Relay Driver is powered and running
OFF: No power to the Relay Driver
Channel LEDs*
Green ON: Channel output is HIGH
OFF: Channel output is LOW or channel is configured as Input
(disabled)
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