Pump Connection; Remote I/O Connector - Varian MidiVac 929-5000 Bedienungshandbuch

PUMP CONNECTION

The pump is connected to the controller rear panel via
HV connector by a coaxial high voltage cable assembly
(cable to be separately ordered).
High voltage can cause severe injury or death.
When installing the high power cable:
− Turn the power off.
− Plug the cable on the pump side.
− Plug the cable on the controller side and secure it.
When removing the cable make sure that the power is
off.
The controller is able to accommodate cables which
contain an interlock circuit. Such an interlock will
disable the High Voltage if the cable is not connected
to the pump (or switch off if the High Voltage is already
on). This interlock cable must be connected to the
provided connector under the HV connector of the
MidiVac rear panel.
If there is no interlock circuit in the ion pump cable,
there is an interlock short attached to the MidiVac. The
cable is connected to the back of the rear chassis and
must be
Otherwise there will be an interlock fault on the control
unit.

REMOTE I/O CONNECTOR

The Remote I/O connector layout is shown in the
following figure.
Downloaded from www.Manualslib.com
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WARNING!
inserted into the corresponding
Remote I/O Connector
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The signals available on the connector pins are
detailed in the following table.
PIN
1 ON/OFF status (normally open)
2 ON/OFF status (normally closed)
3 Fault signal (normally open)
4 Fault signal (normally closed)
5 Start/Protect signal (normally open)
6 Start/Protect signal (normally closed)
7 Recorder output: 0 to +5 Vdc logarithmic
(see diagram)
8 Recorder output: 0 to +0.1 Vdc logarithmic
(see diagram)
9 Common of ON/OFF status signal
10 Common of fault signal
11 Common of Start/Protect signal
12 Recorder output: 0 to +7 Vdc linear
13 Interlock input/Remote HV ON/OFF
command
14 Ground
15 Ground
jack.
Without the interlock connection between pins 13 and
14 of the remote I/O connector the controller cannot
operate. To remotely switch ON or OFF the HV, a
voltage free contact must be applied between pins 13
and 14.
To switch ON the HV, the pins must be short circuited
(with the HV ON/OFF switch on the front panel in ON
position).
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TECHNICAL INFORMATION
DESCRIPTION
NOTE
87-900-080-01 (D)