Secutech Radio modules ST002002 データシート
製品コード
ST002002
Page 20
Security & Electronic Technologies GmbH
SECU-DATA 600M (NAMUR)
Terminal Signal, function
1 Plus-pole of power supply (
+11 … +40 V), re-
verse polarity protection by two 2 diodes,
igni
igni
tion prevention level “ib“
2 Ground line of power supply (0 V)
3 Positive pole for connection of the NAMUR-
probe.
SECU-DATA 600M applies 8.2 V DC via
1000 Ohms
1000 Ohms
4 Negative pole for connection of the NAMUR
probe
5 Not connected
6, 7, 8 Relay contacts, passive, for monitoring the sta-
tus of the RF-connection
7 is the root, for active RF-connection terminals
6-7 are interconnected, during RF-interruptions
terminals 7-8 are interconnected.
6-7 are interconnected, during RF-interruptions
terminals 7-8 are interconnected.
Rated switching capacity: 30 V / 500 mA
SECU-DATA 500C / 1550C is used as the receiver, for the terminal connec-
tions see section SECU-DATA Relay on page 18 in this chapter.
Functionality:
The connected probe is tested for basic functionality: If the probe current is
below 0.4 mA or higher than 6 mA, relay Re2 of the receiver SECU-DATA
500C is activated per RF-connection, the contact is closed. This can be
used to issue an alarm message. The contact is connected to terminals 5, 6
of the SECU-DATA 500C / 1500C.
During the filling process the contact of relay Re1 SECU-DATA 500C /
1550C is also closed via RF-signals (probe current is more than 2 mA); if
the tank is full (filling is not permissible, probe current below 1 mA) Re1
opens.
See also the important application hint on page 19.