User Manual

Commissioning
Part No.: 4417.762_Rev07 SmartRadar FlexLine
Service Manual 6 - 97
☛ Set the [Relay Mode] entity of R3 and R4 relay to <Normally Energized> for
both FII-DO boards.
☛ Set the
[Alarm Mode] entity of R3 and R4 relay to <PV Monitoring> for
both FII-DO boards.
☛ Set the
[Monitor Mode] entity of R3 and R4 relay to <Local> for both FII-
DO boards.
☛ Set the
[Threshold] entity and [Hysteresis] entity of R3 and R4 relay to
the application-specific desired values, for both FII-DO boards iden-
tically.
☛ For overfill protection, configure the
[Threshold] entity above the HA
and HH setting of the TII-XR board. Entities
[High alarm] and [High high
alarm]
.
☛ For underfill protection, configure the
[Threshold] entity below the LA
and LL setting of the TII-XR board. Entities
[Low alarm] and [Low low
alarm]
.
☛ For overfill protection, configure the
[Threshold Mode] entity of R3 and
R4 relay to
<Treat as HA> for both FII-DO boards.
The threshold will now be approached as high alarm above
[High
alarm]
and [High high alarm], with the relevant hystresis behaviour.
☛ For underfill protection, configure the
[Threshold Mode] entity of R3 and
R4 relay to
<Treat as LA> for both FII-DO boards.
The threshold will now be approached as low alarm below
[Low alarm]
and [Low low alarm], with the relevant hysteresis behaviour.
☛ Set the other relevant entities:
The [Overfill Protection Status] entity shows the Overfill Protection Status of
each FII-DO board.
<H> = Healthy
<W> = Gauge alarm (Warning)
<O> = Overfill alarm
With the
[Safety shut down timer] entity, the user can set the time that a safe
shutdown will be forced when only an error or failure in one relay chain
is detected. Default value:
<0>: Safety Shutdown Timer DISABLED.
NOTE: This is an enhanced safety function.
When one potential fail situation is detected in one chain, the other
chain will be forced to fail safe (contacts opened) after the safety shut
down time.
Philosophy: the first detected fail will not result in a shut down directly
but should be solved within a certain time.
 If the Safety shut down timer is enabled, so value z
<0>, then
operation can continue with one branch till second fault is detected.