External alarm
We recommend connecting the appliance to an external alarm device.
There are various connection options at the back of the appliance.
The appliance may only be connected to an external alarm device by trained personnel.
Floating alarm output
These three contacts can be used to connect the appliance to an optical or acoustic alarm device.
The connection is designed for a maximum of 42 V/8 A DC from a safety
Important
When supplying mains voltage to the floating alarm contact, the technical safety requirements of standard EN 60335 will not be satisfied.
N.O
Optional temperature sensor connection
Floating alarm output
Connection to RS485 interface
Terminating resistor
When connecting several appli- ances via the RS485 interface, the terminating resistor must remain on the last appliance.
Remove the terminating resis- tors from the appliances in between.
Alarm output
Connection for a visual warning light or an acoustic alarm signal.
N.C
Operating light
Connection for a control lamp to indicate that the appliance is in normal mode.
COM
External power supply unit 42 V/8 A DC maximum. Minimum current: 150 mA.
RS485 interface
Rx- / Tx-
Note
The connectors are secured with screws. To remove the connectors, undo the left and right screws.
Send/Receive data cable (negative pole)
Rx+ / Tx+
Send/Receive data cable (positive pole)
GND
Earth cable
24