ABB SE21 series - Interconnection Examples for Peripherals

5 Electrical Interconnections Converter
18 S4 D184B122U02
5.7 Interconnection Examples for Peripherals
Fig. 9: Interconnection Examples for Peripherals
Contact output for System Monitor, Max.-Min.-Alarm, Empty Pipe or Fro-
ward/Reverse Signal
Important:
Horn and alarm lights are only shown as
examples. Other suitable alarm instru-
ments; bell, siren, buzzer etc. could be
also be used.
Contact Output
R
L
U
CE
I
CE
-----------
≥
4) Contact output:
Function:
software selectable
Passive
„closed“: 0V ≤ U
CEL
≤ 2 V, 2 mA ≤ I
CEL
≤ 220 mA
„open“: 16 V ≤ U
CEH
≤ 30 V, 0 mA ≤ I
CEH
≤ 2 mA
Terminals: 41, 42
41
42
external
internal
R
L
*
+U
0 V
24 V DC
6) Pulse Output:
Function:
Settable
Active/passive
fmax: 5 kHz, fmin: 1/100 Hz
Setting range: Pulses/unit, pulse width (observe dynamic limits)
„closed“: 16 V ≤ U
CEH
≤ 30 V, 2 mA ≤ I
CEH
≤ 220 mA
„open“: 0 V ≤ U
CEL
≤ 2 V, 0 mA ≤ I
CEL
≤ 2 mA
Terminals: 51, 52
Active/passive selection using jumpers (see Chap. 9.9)
Current output active with/without HART-Protocol (4–20 mA)
R
L
U
CE
I
CE
-----------
≥
Pulse Output
Contact input for external totalizer reset or external zero return
Scaled pulse output active Scaled pulse output passive, optocoupler
Current Output
Switch Contact Input
3) Current output:
Function:
software selectable
Active
0/4–20 mA, 0/2−10 mA, 0 Ω ≤ R
L
≤ 560 Ω
Terminals: 31, 32
5) Contact input:
Function:
software selectable
Passive
„On“: 16 V ≤ U
SM
≤ 30 V
„Off“: 0 V ≤ U
SM
≤ 2 V
R
i
= 2 kΩ
Terminals: 81, 82
externalinternal
82
81
+16-30 V DC
0 V
R
I
+31
-32
0/4-20 mA
0/2-10 mA
externalinternal
52
24 V+
–
externalinternal
51
externalinternal
52
51
16-30 V DC
-
R
L
*