Connection Examples For Peripherals (Incl. Hart) - ABB FSM4000 Manual

FSM4000 ELECTROMAGNETIC FLOWMETER | DS/FSM4000-EN REV. L

Connection examples for peripherals (incl. HART)

Current output
I internal
Figure 38: Current output active with / without HART protocol (4 ... 20 mA)
Current output active with / without HART protocol (4 ... 20 mA)
Terminals 31, 32
Current output can be selected via software
Function Active
0/4 ... 20 mA (0 Ω ≤ RB ≤ 560 Ω)
0/2 ... 10 mA (0 Ω ≤ RB ≤ 1120 Ω)
(for HART only 4 ... 20 mA)
Switch output
I internal
Figure 39: Switch output for system monitoring, Max. / Min. alarm for empty meter
tube or forward / reverse signal
Switch output for system monitoring
Terminals 41, 42
Current output can be selected via software
Function Passive
• 'closed':
0 V ≤ UCEL ≤ 2 V, 2 mA ≤ ICEL ≤ 220 mA
• 'open':
16 V ≤ UCEH ≤ 30 V, 0 mA ≤ ICEH ≤ 2 mA
Note
Horn and alarm light are shown only as examples. Other
suitable devices such as bells, sirens, buzzers, etc., can also
be used.
E external
E external
Switch input
I internal
Figure 40: Switch input for external totalizer reset and external zero return
Switch input, passive
Terminals 81, 82
Current output can be selected via software
Function Passive
• 'On':
16 V ≤ UKL ≤ 30 V
• 'Off':
0 V ≤ UKL ≤ 2 V
Ri = 2 kΩ
E external
63