Super Systems AC20 User Manual

Page 76

NOTES

NOTES:
1) If the alarm is programmed as band or deviation alarm, this

function masks the alarm condition after a set point change or
at the instrument start-up until process variable reaches the
alarm threshold plus or minus hysteresis. If the alarm is
programmed as a process alarm, this function masks the alarm
condition at instrument start-up until process variable reaches
the alarm threshold plus or minus hysteresis.

2) The change from On to OFF has immediate effect, while the

change from OFF to On has effect at the next start up or set
point change

R.F09 -

R.F09 -Alarm 3 type

Alarm 3 type

This parameter is available only when OUT 3 is configured as
alarm 3 output (“O3.Fn” [C.E03] = “ALr.3”)
Upper display: Gr.6
Lower display: A3.tP
Range: Proc = Alarm on process variable

bAnd = Band alarm on process variable
dEV

= Deviation alarm on process variable

NOTE

NOTE: When alarm type has been changed the alarm threshold

will be forced to its default value and alarm status will be
cleared.

H.L.

= High alarm (outside band) with manual reset.

L.L.

= Low alarm (inside band) with manual reset.

NOTE

NOTE: When alarm configuration has been changed, the alarm
status will be cleared.

R.F07 -

R.F07 -Alarm 2 action

Alarm 2 action

This parameter is available only when OUT 2 is configured as
alarm 2 output (“O2.Fn” [C.E02] = “ALr.2”)
Upper display: Gr.6
Lower display: A2.Ac
Range: dir

= direct action (Relay energized or SSr=1 in alarm

condition)

rEV

= Reverse action (Relay energized or SSr=1 in non

alarm condition)

R.F08 -

R.F08 -Alarm 2 stand by (mask) function

Alarm 2 stand by (mask) function

This parameter is available only when OUT 2 is configured as
alarm 2 output (“O2.Fn” [C.E02] = “ALr.2”)
Upper display: Gr.6
Lower display: A2.St
Range: OFF = Stand-by function disabled

= Stand-by function enabled