Interfaces
ETAS
32
AC Voltage Distributor ES4700.1-B
8.7
THERMO SWITCH connector
Interface to connect an external thermo switch circuit. If no thermo switch is used, the
thermo switch circuit has to be closed otherwise the system can’t be switched on.
8.7.1
Pin assignment THERMO SWITCH connector
Fig. 8-9
Connector "THERMO SWITCH"
The pin assignment is as follows:
Pin
Signal
type
Imax
Signal_Name
Voltage
Range
1
Output
1.6A
Fan_Control_1
24V +/- 10%
2
Signal
1.6A
Fan_Control_2
24V +/- 10%
3
Signal
1.6A
Thermo_1
24V +/- 10%
4
Signal
1.6A
Thermo_1
24V +/- 10%
5
nc.
--
--
--
6
nc.
--
--
--
7
nc.
--
--
--
8
nc.
--
--
--
Tab. 8-7
Pin assignment of connector "THERMO SWITCH"
8.7.2
Connect a thermo switch circuit
Example how to connect an external emergency button
