
EPRAD Incorporated LED Light Dimming System PATENT PENDING
S1 ON OFF
1 Force Boot Loader Normal Use (Default)
2 Stand Alone Mode eCNA Mode - Communicates with the eCNA
via LIN
3 Password Disabled Password Enabled (Default)
4 Triac gate is held on until just before
zero-cross
Triac gate is pulsed
5 ALL ON Input igh ALL ON Input Low
6 Not Defined
The eCNA Local I/O Network (LIN) can support up to 32 devices. Each of these devices requires a unique ID
number. IDs 13 through 16 are reserved for the QDC-400 control board. The ID must be set correctly. The ID
number determines which channel configuration or control record data the QDC-400 will use. ID switches are
ignored in Stand Alone mode.
S1 ID = 13
(Channels 1 - 4)
ID = 14
(Channels 5 - 8)
ID = 15
(Channels 9 - 12)
ID = 16
(Channels 13 - 16)
7 OFF OFF ON ON
8 OFF ON OFF ON
2. Statu LED
The RED Status LED on the QDC-400 control board indicates the following
conditions:
Statu LED
Statu Condition
Fast Blink The QDC-400 computer is working and is communicating properly with the
CNA.
1 Blink On,
Pause 2 seconds
The QDC-400 computer is waiting for data from the CNA, and the outputs
are disabled. This condition indicates that since a power up, the QDC-400
has not received data from the CNA. The lights are off and QDC-400 will
wait indefinitely for communications to be established.
2 Blinks On,
Pause 2 seconds
Communications Timeout, outputs are disabled. This condition indicates
that communications were once established to the CNA and subsequently
lost. The lights are off.
3 Blinks On,
Pause 2 seconds
Communications Timeout, outputs are held. This condition indicates that
communications were once established to the CNA and subsequently lost.
The lights hold their current output level. The local Stage and ouse
overrides will ramp outputs to the new level.
4 Blinks On,
Pause 2 seconds
Running BOOT LOADER program. The Boot loader program should only be
running if the ‘force bootloader’ switch is on or the a ‘Flash’ program
upgrade is in process.
5 Blinks On, Pause
2 seconds
The QDC-400 is running in ‘Stand Alone’ mode. DIP switch S1-2 is on.
3. Local Power LED
The GREEN Status LED indicates the local power supply is on.
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