19
Silencing of alarm
Active sides of alarm
With parameter
SId3
you can choose the active side of alarm:
•
SId3
=
both
, both sides (limits) are active.
•
SId3
=
hI
, only high alarm side (limit) is active.
•
SId3
=
Lo
, only low alarm side (limit) is active.
6.4
System Master – Slave
If the controller is equipped with communication line (EIA-485), it can be set up as MASTER as well as SLAVE in system
Master – Slave
, ie. in system when 1 controller transmits stp value and the other controllers receive this stp value. Slave
controllers can modify this value by difference, parameter
dIF
.
Multi-zone
furnace
Master
controller
Slave
controller
T+/R+
T-/R-
As MASTER conroller
you can use also other
controllers (INDUSTRY,
CERAMIC, Ht40A, … ).
Procees
value
time
Active
Active
Deactivated
When power
up alarm is
deactivated
Silencing of alarm can be used to disable
alarm at startup rising to set point value. This
state should not be evaluated as error because
the system is not yet stable. This function is
set with the parameter:
•
SIL3
=
oFF
, function is not active
•
SIL3
=
on
, alarm can be activated
after the process value at startup rising
reached the allowed range for the first
time (between alarm limits ).