Siemens SIPROTEC 7SJ61 Manual page 287

Time Synchronization Interface
It is optionally possible to process 5 V-, 12 V- or 24 V- time synchronization signals, provided that they are
carried to the inputs named in the following table.
Table 3-15
Pin No.
1
2
3
4
5
6
7
8
9
1)
assigned, but not used
Fiber-optic Cables
WARNING!
Laser Radiation!
Do not look directly into the fiber-optic elements!
Signals transmitted via optical fibers are unaffected by interference. The fibers guarantee electrical isolation
between the connections. Transmit and receive connections are represented by symbols.
The standard setting of the character idle state for the optical fiber interface is „Light off". If the character idle
state is to be changed, use the operating program DIGSI as described in the SIPROTEC 4 System Description.
RTD-Box (Resistance Temperature Detector)
If one or two 7XV566 temperature meters are connected, check their connections to the port (port C).
Verify also the termination: The terminating resistors must be connected to 7SJ61 (see margin heading „Ter-
mination").
For further information refer to the operating manual of 7XV5662-xAD. Check the transmission settings at the
temperature meter. Besides the baud rate and the parity the bus number is also important.
For connection of RTD-box(es) proceed as follows:
• For connection of 1 RTD box 7XV5662-xAD: Bus number = 0 (to be set on 7XV5662-xAD).
• For the connection of 2 RTD boxes 7XV5662-xAD: bus number = 1 for the 1st RTD box (to be set on
7XV5662–xAD for RTD 1 to 6), bus number = 2 for the 2nd RTD box (to be set on 7XV5662-xAD for RTD 7
to 12).
Please observe that detector input 1 (RTD1) of the first RTD-box is assigned for ambient or coolant temperature
of the overload protection.
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
D-SUB socket assignment of the time synchronization interface
Description
P24_TSIG
P5_TSIG
M_TSIG
1)
–
SHIELD
–
P12_TSIG
1)
P_TSYNC
SHIELD
Mounting and Commissioning
Signal Meaning
Input 24 V
Input 5 V
Return Line
1)
–
Shield Potential
–
Input 12 V
1)
Input 24 V
Shield Potential
3.2 Checking Connections
287