PROTEM
®
D 404
33
5.0 Connections
Rear view of the device:
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15
21 22 23 24 25 26 27 28
31 32 33 34 35 36 37 38 39 40
1
2
3
4
5
6
7
8
S501
S502
Test Plug
Sensor connection
1
2
3
4
5
6
7
8
Power Supply
Relay contact occupation
Relay 1 break contact
Terminal 31 und 32
Relay 1 make contact
Terminal 33 und 34
Relay 2 break contact
Terminal 35 und 36
Relay 2 make contact
Terminal 37 und 38
Relay 3 break contact
Terminal 21 und 22
Relay 3 make contact
Terminal 23 und 24
Relay 4 break contact
Terminal 25 und 26
Relay 4 make contact
Terminal 27 und 28
Collective Error relay make contact
Terminal 39 und 40
Attention!
The contact 39-40 is closed after connecting the power supply under normal
conditions and will be opened when:
1.
missing power supply
2.
broken wire or short circuit in the measuring circuit
3.
programmed switch-point reached (exceeded temperature)
Power supply
The power supply has to be connected to the terminals 13 and 15 without heeding the
polarity.
