CyberResearch UCERB 24, Руководство пользователя

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Each DIP switch sets the configuration of one relay group. The DIP switch labeled
A
configures relays 1
to 8, the switch labeled
B
configures relays 9 to 16, the switch labeled
CL
configures relays 17 to 20, and
the switch labeled
CH
configures relays 21 to 24 ( ). Figure 2-2
Figure 2-2. Typical board switch
Configures 9-16 relays
Configures relays17-20
Configures relays21-24
CL
CH
A
B
Port A consists of relays 1 through 8, Port B consists of relays 9 through 16, Port CL consists of relays 17
through 20, and Port CH consists of relays 21 through 24.
Remove from the enclosure to access the on-board switches
To change the configuration of a switch, you must first remove the
UCERB 24
from the enclosure.
Relay control logic polarity
Configure the
Invert/non-invert
switch (S1) to set the relay control logic polarity for each relay bank for
invert or non-invert. By default, this switch is shipped with all banks configured for non-inverted logic, as
shown in
. Figure 2-3
Figure 2-3. Relay logic switch S1
NON-INVERT INVERT
S1
CL
CH
A
B
ƒ
NON-INVERT
mode: when "0" is written or read back via the USB bus, the relays are not energized.
ƒ
INVERT
mode: when "0" is written or read back via the USB bus, the relays are energized.
Switch settings for polarity can be read back via software through the USB bus. Switch settings for S1 do
not affect the power-on condition.
Relay power-on state
Configure the
Pull-up/pull-down
switch (S2) to set the state of each relay bank at power-up. By default,
this product is shipped with the switch for all banks configured for pull-down (relays inactive at power
up), as shown in
. Switch settings can be read back via software through the USB bus. Figure 2-4
Figure 2-4. Resistor pull-up/down switch S2
S2
PULL UP PULL DOWN
CL
CH
A
B
ƒ
PULL-UP
: the relays are put into an energized state at power-up, regardless of the state of switch S1
ƒ
PULL-DOWN
: the relays are put into a non-energized state at power-up.
Connecting the external power supply
Power to the
UCERB 24
is provided with the 9 V, 3 A external power supply. You
must connect the
the external power supply before connecting the USB connector to the
UCERB 24
.
To connect the power supply to your
UCERB 24
, do the following:
1.
2.
Connect the external power cord to the power connector labeled
POWER IN
on the
UCERB 24
enclosure (
PWR IN
on the board). Refer to for the location of this connector. Figure 3-1
Plug the AC adapter into a power outlet.
CyberResearch
®
Digital I/O UCERB 24
CyberResearch, Inc
.
7
25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024
Branford, CT USA www.cyberresearch.com