Contrôleur À Minuterie Dct1000 Pour Collecteur De Poussière (Suite) - Eco blast DCM 3000 Série Manuel D'instructions Et Pièces Détachées

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CONTRÔLEUR À MINUTERIE DCT1000 POUR COLLECTEUR DE POUSSIÈRE (SUITE)
E-97 DCT iom 12/29/04 8:55 AM
4-20 mA CONNECTIONS
RECEIVER
USING DCT1000
24V SUPPLY
RECEIVER
OPTIONAL
SUPPLY CONNECTION
USING EXTERNAL
POWER SUPPLY
ALARM
SUPPLY
LOAD
Figure 2
Wiring Connections
1.2.2 Manual Override Switch Connection
The manual override function allows the system to be set to the run
mode regardless of other conditions. This mode is enabled when
the manual override terminal and common are connected. It is dis-
abled when they are disconnected. If the controller is to be run in
continuous mode, a jumper wire may be wired across these termi-
nals. When manual override is needed on a periodic basis, wire a
SPST toggle switch between the manual override terminal and the
common terminal.
1.2.3 Down Time Clean Connection
The down time clean operation forces the system into a run cycle
for a programmed length of time between 0 – 255 minutes. The
operation is initiated by connecting the down time clean terminal to
a common terminal. This function is best accomplished through use
of an external normally open switch.
1.2.4 Connecting Multiple Timer Boards
Both master controller boards and slave boards can have up to a
maximum of 22 channels each. The system may be expanded up
to 255 channels using master controller boards and slave boards.
The DCT1000 will automatically detect the total number of channels
involved and make their outputs available. You will note that both
the master controllers and slave boards have a telephone style con-
nector mounted on the upper right hand side of the board. These
connectors are for use in systems requiring slave boards that must
be daisy chained together to provide additional channel capability.
For systems that require the slave boards, the master controller
must not have any connection made to its daisy chain input unless
it is designated as a slave control itself. (For larger systems requir-
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NORMALLY OPEN CONTRACTS
HIGH LOW ALARM MAN D1 ALARM
LIMIT COM LIMIT COM MODE OVR CLN RESETCOM
TB2
TB3
4-20 MA
OUTPUT
TB4
TB5
MASTER CONTROLLER
C3Ø4
(INTERNALLY CONNECTED)
(10 CHANNEL SHOWN)
TB1
F1
5
L1 L2 SOL 1 2 3 4 6 7 8 9 10
COM
LINE
SOLENOIDS
INPUT
Dépoussiéreurs DCM3000 à 50000 - Manuel d'instruction
MASTER CONTROLLER
INPUT MUST NOT BE
CONNECTED
SLAVE CHANNEL EXPANDER
(INTERNALLY CONNECTED)
TB1 (10 CHANNEL SHOWN)
3 4 5 6 7 8 9 10
L1 L2 SOL 1 2
COM
LINE
SOLENOIDS
INPUT
ing more than three slave boards, a master controller must be used
as the fourth slave board to satisfy power requirements.) This
sequence would repeat itself until the limit of 255 channels has been
reached. The cables used are not ordinary telephone style cables.
Caution: Do not use telephone jumper cables. These
have a "twist" in the connection and may damage the
controllers. Cables designed for use with the DCT1000
are available from Dwyer Instruments (Model DCAC02-2
ft., DCAC04-4 ft., etc.).
1.2.5 Continuous Cycle Mode
The master controller has several operating modes available for dif-
ferent applications. Starting with the most basic mode, it is capable
of operating in a continuous cleaning cycle. This can be initiated by
either placing a jumper between the high limit input and the com-
mon, or the manual override input to the common connection.
Controlling this cycle are three setup parameters: time off, time on,
and cycle delay. Time on and time off specifically deal with the sole-
noid on time and the time interval between the end of the on pulse
and the start of the next. The cycle delay allows a delay of up to 255
minutes to be programmed between the end of one complete
cleaning cycle and the beginning of the next. This allows additional
options for defining a cleaning profile.
TO ADDITIONAL
EXPANDER MODULES
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