12
Electromagnetic Flowmeter Converter
Terminal Designations 1/10” to 40” [DN 3 to DN 1000]
1)
Supply power, see Instrument Tag.
2)
Magnet coil supply from line.
3)
External zero return, passive, over contact with internal
voltage supply terminals U2 (+24 V DC) and 22. Switch S902 closed.
External totalizer reset, passive over contact with internal voltage supply
terminals U2 (+24 V DC) and 31. Switch S902 closed.
4)
External totalizer reset with external voltage supply (for galv. isolation) terminals G2 (–)
and 31 (+24 V DC). Switch S902 on the Connection Board must be opened.
External zero return with external voltage supply (for galv. isolation) terminals G2 (–)
and 22 (+24 V DC). Switch S902 on the Connection Board must be opened.
Dynamic zero compensation with external voltage supply (for galv.isolation) terminals G2 (–)
and A1 (+24 V DC). Switch S902 opened. The fluid must be at absolute zero flowrate
the metering tube must be completely filled, see 3.3.
5) *
Scaled pulse output, 24 V DC active, load
≥
150
, fmax 10 kHz
terminals V1, V2; Function 9, 11 forward
terminals V3, V4; Function 9, 11R reverse
6) *
Scaled pulse output, passive, relay contact,
≤
28 V DC,
≤
250 mA,
≤
3 W, fmax 20 Hz
terminals V1, V2; Function 55, 56 forward
terminals V3, V4; Function 57, 58 reverse
7)
Option, data link RS 485. terminals V1, V2, V3, V4; Function T-, T+, R-, R+.
8)
Option, data link Profibus DP, terminals V1, V2, V4, G2, Function RxD/TxD-P(B),
RxD/TxD-N(A), +5V (VP), DGND(G2) terminals V4, G2 use only for bus terminations.
9)
Alarm max., relay contact
≤
28 V DC,
≤
250 mA,
≤
3 W,
passive or optocoupler U
CE
≤
25 F, I
CE
≤
7.5 mA. terminals P1, P2; Function E7, C7.
10)
Alarm min., relay contact
≤
28 V DC,
≤
250 mA,
≤
3 W,
passive or optocoupler U
CE
≤
25 F, I
CE
≤
7.5 mA. terminals P3, P4; Function E8, C8.
11)
Forward/reverse direction signal, relay contact
≤
28 V DC,
≤
250 mA,
≤
3 W. terminals 44, 45, 46 44, 45, 46.
12)
Current output, R
L
≤
550
0/4–20 mA, 0–10–20 mA, 4–12–20 mA, R
L
≤
1000
0/2–10
mA,
R
L
≤
2000
0–5 mA. terminals –, +.
13) a) Alarm output, relay contact opens at alarm,
≤
28 V DC,
≤
250 mA,
≤
3 W, terminals V5, V6; Function 39, 40 or
b) Alarm output, optocoupler, U
CE
≤
25 F, I
CE
≤
7.5 mA. terminals V5, V6; Function E9, C9.
If a passive scaled pulse output is required in addition to the data link, then the alarm output is not available.
c)
Scaled pulse output, optocoupler, U
CE
≤
25 F, I
CE
≤
7.5 mA
terminals V5, V6; Function 55, 56 forward.
14)
Shielded signal cable, already installed. If a new signal cable is required ,
see Interconnection Diagram 20” to 40” [DN 500 to DN 1000].
15)
Reference voltage cable, already installed.
*)
Scaled pulse output, active or passive, pulse width can be set from 0.032 to 2000 ms.
Ω
Ω
Ω
Ω
Содержание 50SM1000
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