D39489-BA-PM-EN.pdf - 第28页
28 D39489 | Date 12/2019 Diaphragm pump PJ25481 - 950.50.1 8 Operation Translation of origina l Installat ion Instructions , english , KNF 125530 - 31 6634 06/18 17 Extern al actuation Elektrische Anschlüss e / Electrica…
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D39489 | Date 12/2019
Operation Diaphragm pump PJ25481-950.50.18
16 Translation of original Installation Instructions, english, KNF 125530-316634 06/18
WARNING
Hazard of the pump head bursting due to excessive
pressure increase
Do not exceed max. permissible operating pres-
sure (see Chapter 4. Technical Data.
Monitor pressure during operation.
If the pressure exceeds the maximum permissi-
ble operating pressure, immediately switch off
pump and eliminate fault (see Chapter
9. Trou-
bleshooting).
Only throttle or regulate the air or gas quantity in
the suction line to prevent the maximum permis-
sible operating pressure from being exceeded.
If the air or gas quantity in the pressure line is
throttled or regulated, make sure that the maxi-
mum permissible operating pressure is not ex-
ceeded.
Ensure that the pump outlet is not closed or con-
stricted.
Excessive pressure (with all of the related hazards) can be pre-
vented by placing a bypass line with a pressure
-relief valve be-
tween the pressure and suctions sides of the pump. For further
information, contact our technical adviser (contact data: see
www.k
nf.com).
With the pump at a standstill, open pressure and suction lines to
normal atmospheric pressure.
WARNING
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
thermal
switch or the trigging device for PTC sen-
sors, the pump will restart automatically after cooling
down.
Take all necessary care to prevent this leading
to a dangerous situation.
7.3. Switching Pump on/off
Switching pump on
The pump may not start up against pressure during switch-on.
This also applies in operating following a brief power failure.
If
a
pump starts against pressure, it may block.
This activates the
overload switch and the pump switches off.
Make sure that normal atmospheric pressure is present in the
lines during switch-on.
Pumpe am Netzschalter einschalten (siehe Fig. 1/3 in Kapitel
5).
Depending on the applied electrical voltage, initialization of the
electronics may take up to one second before the pump starts.
Pump standstill
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D39489 | Date 12/2019
Diaphragm pump PJ25481-950.50.18 Operation
Translation of original Installation Instructions, english, KNF 125530-316634 06/18 17
External actuation
Elektrische Anschlüsse / Electrical connection
Litzenbelegung / lead assignment
Pin Nr. Funktion / function
Signalname
signal name
1
5V Ausgangsspannung
5V power supply
U
5V
2
Masse
Ground
GND
3
Masse
Ground
GND
4
Ausgangssignal Drehzahl
Output signal speed
U
Spd
5
Versorgung Gasballastventil
Supply gas ballast valve
U
+GB
6
Eingangssignal Drehzahlregelung
Input signal speed control
U
Ctrl
7
Ausgangssignal Fehler
Output signal fault
U
Flt
8
Eingangssignal Remote EIN/AUS
Input signal Remote ON/OFF
U
Rmt
9
Masse Gasballastventil
Ground gas ballast valve
U
-GB
5V Ausgangsspannung U
5V
/ 5V Power supply U
5V
Ausgangsspannung DC
Output voltage range DC
[V] 5 ± 0.2
Max. Ausgangsstrom
Max. current output
[mA] 170
Tab. 9 (part 1): Connection plan motor electronics
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D39489 | Date 12/2019
Operation Diaphragm pump PJ25481-950.50.18
18 Translation of original Installation Instructions, english, KNF 125530-316634 06/18
Ausgangssignal Drehzahl U
Spd
/ Output signal speed U
Spd
Analog
Pulse pro Umdrehung
Pulses per revolution
[-] 1
Pulstastverhältnis
Pulse duty cycle
[%] 50 ± 1
PWM-Signal
PWM Frequenz
PWM frequency
[Hz] 50 ± 0.5
Ausgangspegel „high“
Output level „high“
[V]
5
[4.1 … V
5V
]
Ausgangspegel „low“
Output level „low“
[V]
0
[0 … 0.6]
Max. Strombelastbarkeit
Max. current carrying capacity
[mA] 10
Ausgangsimpedanz @ 1 kHz
Output impedance @ 1 kHz
[kΩ] ≥ 9
Eingangssignal Drehzahlregelung U
Ctrl
/ Input signal speed control U
Ctrl
Analog
Steuerspannungsbereich DC
Control voltage range DC
[V] 0 … 5
Steuerspannungsbeschreibung:
min. Pumpe min. Förderleistung
max. Pumpe max. Förderleistung
Contol voltage description
min. pump min. flow
max. pump max. flow
[V]
min.
max.
0.1 5
Max. Eingangsspannung
Max. input voltage
[V] 5.5
Schwellenspannung
Treshold voltage
[mV] 25 ± 0.5
PWM-Signal
PWM Frequenzbereich
PWM frequence range
[Hz]
100
[50 … 150]
Eingangspegel „high”
Input level „high”
[V]
5
[4.2 … 5.5]
Eingangspegel „low”
Input level „low”
[V]
0
[0 … 0.9]
Tastgradbereich
Duty cycle range
[%] 0 … 100
Tastgradbeschreibung:
min. Pumpe min. Förderleistung
max. Pumpe max. Förderleistung
Duty cycle description
min. pump min. flow
max. pump max. flow
[%]
min.
max.
2 100
Eingangsimpedanz @ 1kHz
Input impedance @ 1kHz
[kΩ] ≥ 12
Tab. 9 (part 2): Connection plan motor electronics