Siemens FC300, Руководство по эксплуатации, Страница: 292 / 518

HMI menu ID Parameter Description Default value
[unit]
Value range Access
level
2.4.1.4 Direction Select measured flow direction.
The flow meter will only output
current when flow value is meas‐
ured in selected direction.
Positive
● Positive
● Negative
● Bidirectional
● Bidirectional
(symmetric)
User
2.4.1.5 Loop current scale Select current output scaling ac‐
cording to desired measurement
range and fail-safe mode.
● 4 to 20 mA
(3.5) 3.8…
20.5 (22.6)
NAMUR
● 4 to 20 mA
(3.5) 3.8…
20.5 (22.6)
NAMUR
● 4 to 20 mA /
(3.75) 4 to
20.8 (22.6) US
User
2.4.1.6 Upper range value Assign process value to the up‐
per output current (20mA)
1) 1) User
2.4.1.7 Lower range value Assign process value to the low‐
er output current
1) 1) User
2.4.1.8 Fail safe activation con‐
dition
Fail-safe becomes active if ei‐
ther the selected process value
is unreliable, or the device
shows "Maintenance alarm".
Invalid proces‐
value
● Invalid
process value
● Maintenance
alarm
User
2.4.1.9 Damping value Set filter time constant. Defines
the damping of the current out‐
put signal.
0 s 0 to 100 s User
2.4.1.10 Fail-safe behaviour Select current output reaction in
case of a fault.
Lower fault cur‐
rent
● Lower fault
current
● Upper fault
current
● Last valid
value
● Current value
● Fail safe value
User
2.4.1.11 Fail safe value Define fail-safe current output
value if 'Fail-safe behaviour' pa‐
rameter is set to ’Fail-safe value’.
3.5 mA 0 to 25 mA
2.4.1.12 Fail-safe minimum dura‐
tion
Minimum time the output stays
in fail-safe mode. Short events
will be prolonged.
0 0 to 100 s
1)
: See Sensor dimension dependent default settings (Page 259)
2)
Process value is set to Mass flow
3)
Process value is set to Volume flow
4)
Process value is set to Density
Default settings
B.5 Inputs and outputs
MASS 2100 & FC300 (FCT030)
292
Operating Instructions, 06/2017, A5E39789040-AA