Semi-conductor switch elements with a residual voltage of -0.7 V (e.g.
transistors in open-collector circuits) or contacts (relays) can be used as
input switch elements.
Pin
Pin 1 = Pause input (activating func‐
tion)
Voltage with open contacts:
approx. 5 V
Input resistance:
10 kΩ
Control:
n
Potential-free contact (approx. 0.5
mA)
n
Semiconductor switch (residual
voltage < 0.7 V)
2 = contact input
Voltage with open contacts:
approx. 5 V
Input resistance:
10 kΩ
Control:
n
Potential-free contact (approx. 0.5
mA)
n
Semiconductor switch (residual
voltage < 0.7 V)
min. contact duration:
20 ms
Max. pulse frequency:
25 pulses/s
3 = Analogue input
Input load:
approx. 120 Ω
4 = GND
5 = Auxiliary input
Voltage with open contacts:
approx. 5 V
Input resistance:
10 kΩ
Control:
n
Potential-free contact (approx. 0.5
mA)
n
Semiconductor switch (residual
voltage < 0.7 V)
The metering pump makes its first metering stroke at approx. 0.4 mA (4.4
mA) and enters into continuous operation at approx. 19.2 mA.
Technical data "External control"
1
5
4
2
3
P_BE_0014_SW
Installation
37
Содержание S3Cb
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