Connection P6 - 24 Vdc Connector; Logic Interconnections; Connection P1 - Logic Input Interconnections - Varian Turbo-V 70 PCB Mode D'emploi

Connection P6 - 24 Vdc Connector

This is a dedicated 24 Vdc, 100 mA maximum, output
for the optional Turbo-V 70 PCB pump cooling fan.
The mating connector and cable are provided
assembled with the air cooling kit.
Fan Connector

LOGIC INTERCONNECTIONS

Connection P1 - Logic Input Interconnections

P1 logic input connector
All the logic input to the controller must be connected at
J1 mating connector. With the provided J1 mating
connector (shipped with pin 3 and pin 8 shorted) make
the connections with AWG 24, (0.24 mm
wire to the pins indicated in the following figure to
obtain the desired capability.
PIN
1-6
2-7
3-8
4-9
Pin 3-8 must be shorted to allow the Turbo-V 70 PCB
pump to start if no interlock contact is connected. If,
after starting the pump, the interlock contact opens, it
has no effect on the operation and the pump continues
to turn.
The following figure shows a typical contact logic input
connection and the related simplified circuit of the
controller.
2
) or smaller
52
TECHNICAL INFORMATION
DESCRIPTION
Remote START/STOP optically isolated from
the internal circuit, requires a permanently
closed contact (relay contact. transistor, etc.).
When the contact closes, the turbopump
starts, and when the contact opens, the
turbopump is stopped.
Remote LOW SPEED optically isolated from
the internal circuit, requires a permanently
closed contact (relay contact, transistor. etc.).
When the contact closes, the turbopump runs
at low speed and when the contact opens, the
turbopump reverts to high speed mode.
INTERLOCK optically isolated
internal circuit, this signal can be used to
delay the starting of the turbopump. It
requires a permanent closed contact before
starting the turbopump.
SYSTEM OVERRIDE optically isolated from
the internal circuit, this signal is used to stop
the pump in emergency condition, requires a
closed contact.
When the contact is closed, the turbopump
and the interconnected devices are stopped.
NOTE
Typical logic input connection
from the
+24 V
87-900-871-01 (B)