Sp2 Subsidiary Mode; Sp2 As A Proportional Output; Sp2 Alarm Condition Table; Sp2 Alarm Annunciator - Omega Engineering CN9400 User Manual

SUBSIDIARY SP2 MODE
Latch/sequence or non-linear cool.
Latch alarm LtCh
When activated, the alarm latches until manually reset, even
though the alarm condition may have disappeared.
Sequence alarm hoLd
When hoLd is selected, in any alarm mode, it prevents an
alarm signal on power-up. The alarm is enabled only after
the process temperature has reached setpoint.
SP SP
setpoint setpoint
Y
Without sequence
alarm
Alarms on No alarm on
power up power up
TO CONFIGURE SP2 AS A PROPORTIONAL
CONTROL OUTPUT
In level 2 select
then select the required option.
In level 1 select
and then set the required proportional band.
:
SP2.B
SP SP
setpoint setpoint
Y
With sequence alarm
Alarm Alarm operates
enabled normally
SP2.A
BND.2
In level 1 select
and then set the setpoint (SP2) value (y°).
SP2 OUTPUT AND LED INDICATION STATES - IN
ALARM CONDITION
Alarm type ON-OFF
operating mode
Deviation SP2 SP2
Output state LED state
DV.HI
DV.LO
BAND
Full scale
FS.HI
FS.LO
Temperature above setpoint
COOL
Strategy
Output ON Output OFF
(Relay or SSd energised) (Relay or SSd de-energised)

SP2 ALARM ANNUNCIATOR

When an SP2 alarm mode is selected in SP2.A the alarm
annunciator -AL- is displayed, alternating with the process
temperature, during alarm condition.
Note: The annunciator may be disabled by selecting
function
and option on in level 4.
SP2 in cool strategy
(See heat-cool configuration in ADVANCED SETTINGS page 23).
SET.2
Proportional
operating mode
SP2 SP2
Output state LED state
: on-off mode only
BAND
LED ON
NO.AL
ON
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