User Manual

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IPN 074-289L
Composer Operating Manual
4.3.6.2 SENSOR Connector
A DB-15 connector used for connecting the Controller to the Transducer. There
are no user connections on this connector.
IN#1 SET reference zero 18 Sets a new value of
Reference Zero—will not
take action unless: (a) steady
condition is met (see K4
above), (b) the Transducer is
at temperature set point, and
(c) a zero value for the MIN
FLOW parameter has been
set.
IN#2 ** HOLD CONTROL OUTput 19 Holds CONTROL OUTput at
present voltage value **
IN#3 ** STOP CONTROL OUTput 20 Sets CONTROL OUTput to
zero volts**
IN#4 ** START CONTROL
OUTput
21 Initiates feedback control to
maintain target concentration
set point (or value on
CONCENTRATION INput)**
IN#5 ** BYPASS 22 Initiates full flow through
dilution line (requires SW#5
of CFGR2 be set)** See
Table 4-5 on page 4-26.
IN#6 spare 1 23
IN#7 spare 2 24
GND system chassis ground 13, 14,
15, 16, 17
** Inputs 2, 3, 4, and 5 are mutually exclusive in Concentration Control mode.
The last command to change state from off to on will be operative. Certain
transitions are not allowed: (a) Stop to Hold, (b) Bypass to Hold. Inputs 2, 3,
and 5 are inoperative in Bulk Flow mode.
Table 4-2 System I/O Connector Function (continued)
Relay
I/O #
FUNCTION PIN #s Comment