The PLC interface of the OEM model enables the implementation of precise closed loop flow or pressure
control in connection with either a flow or pressure sensor (see Figure 8). Precise ultrapure flow control
systems can be realized in combination with LEVIFLOW
®
flowmeters.
Figure 8: System configuration of OEM model for process control
(Pressure or flow control with external sensor, details in Section 4.3.1)
2.2.4 System Configuration for OEM ATEX / IECEx Models
Together with the standard pump head an ATEX / IECEx certified pump driver allows installation of the pump
within an Ex classified area (see Figure 9 and Figure 10). One option to lead the driver cable outside the Ex
area is to use an Ex certified cable sealing system as listed in Table 3.
Figure 9: System configuration OEM Ex model for speed control
Integrated Ex Pump Driver
OEM Model
Outlet
Inlet
PLC Interface:
- Analog and Digital IO s
- Remote Control with Speed Signal
- Flowcontrol with external Sensor
- Pressure Control with ext. Sensor
AC/DC
Power
Supply
(DIN-Rail)
AC InputDC Output
PC Connection:
- System configuration
- Service and Firmware update
- Monitoring
Open Wires
Fieldbus Interface:
- Remote control with fieldbus
- Connection to PC
Screw type connector for
open-wires connection included in
converter cable package.
Fieldbus
RS485 of Driver
Integrated Driver Cable
Cable Bushing
DC Supply 24 V
USB to RS485
Converter with Cable
Cabinet Boundary for
Ex classified Area
Ex conform cable
sealing system
Ex classified
Location
Single
-Use
Pump Head
Bayonet Socket
with Locking Pin
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