Samson TROVIS 3730-3, Operating Instructions Manual

Page: 107 / 132

EB 8389 EN 107
Binary input
8.2 Type 3730-4
The optional binary input BI2 can be config -
ured over the PROFIBUS PA network in the
CONFIG_BINARY_INPUT_2 parameter of
the Physical Block. See
u
KH 8384-4.
8.3 Types 3730-5 and 3731-5
Binary input BI1
The following functions can be activated by
the standard binary input BI1:
−
5–30 V DC
As a standard feature, the positioner
comes with a contact input to analyze bi-
nary voltage signals (terminals 87 and
88). The DI1 Function Block analyzes the
state of the contact and issues it over
OUT_D.
− Internal solenoid valve
In this setting, the current switching state
of the optional internal solenoid valve is
analyzed and issued over OUT_D. '0' in-
dicates a de-energized solenoid valve (U
< 15 V DC) and '1' an energized sole -
noid valve (U > 19 V DC).
−
Discrete final valve position
In this setting, the current discrete valve
position is issued over OUT_D. The val-
ues are assigned as follows:
0
Device not initialized
1 Valve closed
2 Valve open
3 Valve in intermediate position
− Condensed state
In this setting, the current condensed
state according to NAMUR Recommen-
dation NE 107 is issued over OUT_D.
The status messages are assigned to the
discrete value as follows:
0
No message
1 Maintenance required
2 Maintenance demanded
3 Maintenance alarm
7 Function check
Settings > Binary input 1 (DI1, TRD)
−
Selection binary input 1: [5-30 V DC], Internal
solenoid valve, Discrete final valve position,
Condensed state
− Assignment TRD/DI: [Connected with DI1
TRD (1)], Not connected with TRD (0)
Binary input BI2
The optional binary input BI2 can be used to
activate the following functions:
− Floating contact
The positioner can be fitted with an op -
tional binary input to analyze a floating
contact (terminals 85 and 86). The DI2
Function Block analyzes the state of the
contact and issues it over OUT_D.
When a pressure sensor (leakage sensor)
is connected, its switching state can be
issued as a diagnostic alarm in the XD_
ERROR_EXT parameter of the AO
Transducer Block and logged. In this
case, the 'Actively Open – Ext. Leak.
Sens.' or 'Actively Closed – Ext. Leak.
Sens.' option must be activated in
CONFIG_BINARY_INPUT2. Additionally,
the switching state of the binary input is