Connection J2 - Logic Output Interconnections - Varian Turbo-V 300 ICE series Bedienungshandbuch

PIN DESCRIPTION
1-6 Remote START/STOP S1 optically isolated
from the internal circuit, requires a permanently
closed contact (relay contact. transistor, etc.).
When the contact closes the turbopump starts
at high speed and when the contact opens, the
turbopump is stopped. With the remote mode
operation selected, the front panel push-button
is inoperative.
2-7 Remote START/STOP S2 optically isolated
from the internal circuit, requires a permanently
closed contact (relay contact. transistor, etc.).
When the contact closes the turbopump starts
at low speed and when the contact opens, the
turbopump is stopped. With the remote mode
operation selected, the front panel push-button
is inoperative.
3-8 INTERLOCK optically isolated from the internal
circuit, this signal can be used to delay the
starting of the turbopump. It requires a
permanent closed contact before starting the
turbopump.
4-9 SPARE.
NOTE
In the presence of both S1 and S2 signals, the one that
reaches the processor first is executed.
NOTE
Pin 3-8 must be shorted to allow the Turbo-V 300 ICE
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.
Typical logic input connection
Connection J2
Logic Output Interconnections
Logic output connector
All the logic output from the controller must be
connected at P2 mating connector. With the optional
P2 mating connector make the connection with AWG
2
24 (0.25 mm ) or smaller wire to the pins indicated in
the figure to obtain the desired capability. The following
table describes the signals
available on the connector.
The following figure shows a typical logic output
connection (relay coil) but any other device may be
connected e.g. a LED, a computer, etc., and the related
simplified circuit of the controller.
15
9
Typical output connection open collector
PIN
1-10 Normal S1 signal 24 V 60 mA, optically
* isolated output
negative). The output Voltage will be present
when the rotational speed of the pump is
higher than the selected high speed threshold.
2-10 Normal S2 signal 24 V 60 mA, optically
∗
isolated output
negative). The output Voltage will be present
when the rotational speed of the pump is
higher than the selected low speed threshold.
73
TECHNICAL INFORMATION
8 8
15
12
4
9
1
1
DESCRIPTION
(pin 10 positive,
(pin 10 positive,
87-900-902-01 (L)
+ 24
+24 V
pin 1
pin 2
➔