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To make connections, remove the plug and wire the
pins (maximum wire size 18 AWG, 1 mm
in the figure to obtain the desired capability.
CAUTION!
On
the
J6+J7
outlets
120 Vac with the maximum current of 1 A. If more than
one device is connected, be sure to draw not more than
120 VA to avoid controller damage. Use a relay coil
with a maximum surge power of 65 VA.
NOTE
Forepump relay coil is an independent user supplied item.
OPTIONAL SERIAL PORT
NOTE
The Controller can be read when set in the
Front/Remote mode, (read window only enabled), while
it can be written to and read when set in the Serial
mode (write window enabled).
Serial Port Installation
Optional RS 232/422/485 kits are available for both
models. To install them, proceed as follows:
•
Switch off the power and disconnect the power
cord.
•
Unscrew the cover screws and remove the cover.
•
On rear panel, remove the connector plate, and
then secure connector J5 to the frame using the
turrets provided.
•
On rear panel, remove the fixing turrets of
connectors B and C and then remove the controller.
•
Attach the interface board connector to connector
P6 on the controller and then secure it in place
using screw A (3x6), which is not provided.
•
Insert the flat cable through the rear panel and plug
it into the socket P1 located on the Interface board.
•
Restore the main board into its original position.
•
Install and tighten the connector screws and turrets.
•
Replace the cover.
Serial port connector installation
£
) as indicated
the
output
Voltage
RS 232 Communication Port
Communication serial port connections and mini- mum
connection configuration are shown in the following
figures. The communication port mating connector is
supplied with the RS 232 PCB (AMP/Cannon or
equivalent 9-pin "D" type male connector). The external
is
cable (not supplied) between the host computer and
the controller requires some crossed wires so that
signals are connected correctly.
For example, the Transmit data signal from controller
(pin 2) must be connected to the host computer's
Receive data line (pin 3) and vice versa. Consult the
host computer's instruction manual for its serial port
connections.
Varian
cannot
regulations for radiated emissions unless all external
wiring is shielded, with the shield being terminated to
the metal shroud on the O-subconnector. The cable
should be secured to the connector with screws.
55
TECHNICAL INFORMATION
NOTE
guarantee
compliance
87-900-873-01 (C)
with
FCC
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