20
Figure 10 Connection of transmitters using 4-20 mA
Connection of optical and sound signaling
Figure 11 Signaling connection
Note: The outputs are protected by a 5A-T tubular fuse.
Output relay
Each relay can be configured to activate the following arbitrary number and combination of events:
4 levels of gas leak alarm, PEL, STEL, transmitter failure, and control panel signal states.
After activation, the relay can have the following output functions configured: idle on, idle on, cycling on/off, automatic
deactivation of outputs after a certain time, or after pressing a button.
The specific configuration of the relay can be found in the configuration protocol supplied with the control panel.
RS485 Host connection
This interface is used to transfer process data using the MODBUS protocol. It must be enabled in the settings menu. See
chapter 9.11.1. The interface is galvanically separated from the rest of the control panel and should be connected to the
superior system in 3 wires using data signals A and B and a common GND wire.
If the control panel is the last element on the bus, it should be terminated with a termination resistor - shorted jumper JP6.
