31
5 Connecting to power supply
WEIGHTRAC 31 • 4 … 20 mA/HART - four-wire
42374-EN-131119
1
1
24
56
22
11
12
21
22
19
20
18
17
14
13
16
15
12
1
2
91
01
1
3
A
Fig. 17: Belt speed - plant control system (PLC) or tachometer (analogue)
A Output
1 Plant control system (PLC)
2 Tachometer (analogue)
3 Diode (blocking voltage > 50 V)
3)
Fig. 18: Digital tachometer (TACHO.A1A4M)
Tachometer (digital)
3)
Not required with output "open collector"