Watson-Marlow 630 U - 14.1 External Interface Parameters

14.1 Pump external interface parameters
Parameter
Limits
Units Comment
Sym Min Nom Max
Digital input voltage high VD
IH
5 24 V
Leak, Stop, Pressure,
Frequency
Digital input voltage low VD
IL
0 0.8 V
Leak, Stop, Pressure,
Frequency
Digital input voltage absolute
maximum
VD
in
-30 30 V Non operational
Digital input resistance RD
in
10 110 kΩ 110K for ≤ 5V
Frequency range F
max
1 1000 Hz Flow sensor use
Analogue input, voltage mode VA
in
-15 10 30 V
0-10V range (100R source
impedance)
Analogue input, voltage mode
RVA
in
34.4 kΩ ±3%
Analogue input measurement
range
I
in
0 25 mA
Analogue input current absolute
maximum
IA
in
-50 28 mA Dissipation limit
Analogue input voltage absolute
maximum
VA
in
0 7.0 V Dissipation limit
Analogue input resistance RI
IN
250 270 Ω 250R Sense Res.
Analogue input filter bandwidth BW 67 Hz -6dB Bandwidth
22V supply output V
aux
18 30 V Un-regulated
24V isolated supply output V24 24
22V/24V supply load current 80 mA Self-resetting fuse
50 m-630un-en-08