KROHNE IFC 110 Converter - Manual (Page 23)

Part A System installation and start-up Sect. 2.6
05/2003 IFC 110 F 23
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Pulse output P active
‚
Pulse output P active
for electronic totalizers (EC)
for frequencies
≤ 1 kHz
for electronic totalizers (EC)
for frequencies > 1 kHz
R1 = 1 k Ω/0.5 W I ≤ 20 mA R
i EC
> 100 k Ω R = 1 kΩ/0.35 W I ≤ 30 mA
R2 / 0.2 W 10 k Ω 1 k Ω 270 Ω
U
EC max
22 V 12 V 5 V
ƒ
Pulse output P
passive
for electronic totalizers (EC)
for frequencies ≤ 1 kHz
U
ext
≤ ≤ 32 V DC / ≤ 24 V AC
I ≤ ≤ 30 mA
R = 1 - 10 k Ω
U
ext
2
P
R
≥
R
for frequences > 1 kHz
U
ext
= ≤ 24 V DC / AC
R
i EC
≥ 100 k Ω
I
~ 30 mA ~ 18 mA
R 560 Ω 1 k Ω
P
R
0.5 W 0.35 W
U
EC
16 V 18 V
* Shielded cables
must be used to prevent radio interference at pulse output frequencies > 100 Hz