A 01/13 2-channel Binary Signal Transducer Page 13 of 40
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Page 12 of 40 2-channel Binary Signal Transducer A 01/13
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General data
Auxiliary DC or AC power is connected by 2 terminals (N/L-, L1/L-). The
wide range of auxiliary supply (24 - 250V DC and 60 - 230V AC) allows
the connection to all common substation batteries or AC mains voltages
(without jumpers in the device).
An LED display for the operating voltage (green LED: RUN) is attached
to the front, to indicate correct operation.
Data transfer
The optical interface works in positive logic (light OFF in idle state),
incoming light is treated as active = 1 (high). For the adaption to systems
with negative logic a switch is integrated which allows the negative
logic setting (FO interface).
Position as delivered is positive logic (lights OFF in idle state).
Both convertes must operate in the same logic. It is recommended to
remain the factory setting.
FO connection
The optical fibre cables are connected to the converter via
ST-connectors.
Connecting to the serial RS232 interface
Connecting to the RS232 interface disconnect the FO-transmitting and
set the communication to seriell interface.
The Connection to the serial interface of the converter can be done via
a serial 7XV5100-4 cable.
For use with an other cable, Pins 7 and 8 of this cable must be bridged
and Pin 1 and 4 (X1 at BST) has no assignment.
Binary inputs
Both binary inputs BI-1 and BI-2 operate with a wide range of input
voltage. Logic high "1" is a voltage level of 24V-250V DC / -15% +20%
with polarity reversal protection and a pick up threshold at 18V. The
threshold can be raised in exceptional cases (e.g. long and unshielded
lines and high electrical interference, see table 8 and fig. 7).
Logic low "0" is a voltage level below the threshold. The associated yellow
LEDs (BI-1, BI-2) light up if the corresponding binary input is activated (if
it is in a logic high state).
Binary input 1
BI-1
Binary input 2
BI-2
LED BI-1 LED BI-2 LED K1 LED K2
Activ Lights up
Activ Lights up
Table 1: Binary inputs
The LEDs K1, K2 show the state of the outputs contacts wich are set by
the binary inputs from the remote converter via a serial telegramm
transmitted via fibre optic cables or RS232 connection (e.g. modem
with RS232 interface).
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