LEYBOLD 250000V01, Operating Manual

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Installation
30
GA10218_002_C0 - 10/2016 - © Leybold GmbH
Digital In (Control 2)
These inputs can be used to control the PHOENIX L300i with a programmable
logic control (PLC).
The contacts are numbered from bottom to top.
Maximum input voltage 35V.
These inputs Fig. 9 /6 are working only, if the correct location of control is chosen.
See chapter Interfaces .
To avoid a mistake between the connection Control 2 and Record, pin 1 and 4 are
blocked. When using the connectors the guiding nose for pin 1 and 4 must be
removed.
Recorder/RECORD
The recorder output
Fig. 9 /7 may be used to chart the leak rate, the inlet pressure
and the fore vacuum pressure. Both recorder activities can be adjusted individually
for showing leak rates and pressures.
The measured values are provided by way of an analogue signal in the range of 0 V
… 10 V. The resolution is limited to 10 mV. The instrument which is connected to
the recorder output (e. g. X(t) chart recorder) should have an input resistance of no
less than 2.5 kW. The measured values are available through pins 1 and 4. The
reference potential (GND) is available at pins 2 and 3.
The contacts are numbered from bottom to top.
The chart recorder outputs are electrically isolated from other plugs. If, in spite of
this, hum interference is apparent it is recommended to operate the PHOENIX
L300i and the chart recorder from the same mains phase. If this is not possible,
you must make sure that the frame ground of both instruments is kept at the same
potential.
For further information see chapter Interfaces .
Pin Assignment
1 PLC in free selectable
2 PLC in free selectable
3 PLC in free selectable
4 PLC GND
Pin Assignment
1 Analog 1, leak rate, inlet pressure P1 or fore vacuum pressure P2
2 GND
3 GND
4 Analog 2, leak rate, inlet pressure P1 or fore vacuum pressure P2
Digital In (CONTROL2)
Caution
Recorder/RECORD