Connection J2 - Logic Output Interconnections - Varian Turbo-V 70 PCB Mode D'emploi

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 24 (0.25 mm
the pins indicated in the figure to obtain the desired
capability. The following table describes the signals
available on the connector.
PIN DESCRIPTION
1-2 Analog output Voltage of DC current drawn by
the turbopump (pin 2 positive, pin 1 negative).
2 Vdc ≡ 1 A.
4-11 R1 signal 24 V, 60 mA, optically isolated
output (pin 11 positive, pin 4 negative). The
output voltage will be present when the
rotational speed of the pump is higher than the
selected
Default value = 67 KRPM
5-12 LOW SPEED signal, 24 V, 60 mA, optically
isolated output
negative). The output voltage will be present
when the low speed mode is selected.
6-13 START signal 24 V, 60 mA, optically isolated
output (pin 13 positive, pin 6 negative).
The output voltage will be present when the
remote start
operation is reached.
2
) or smaller wire to
speed threshold.
(pin 12 positive, pin
is present until NORMAL
PIN
7-14 R2 signal 24 V, 60 mA, optically isolated
output (pin 14 positive, pin 7 negative).
The output Voltage will be present upon the
programmed condition delay YES or delay NO
(see the cycle diagram in the following pages).
If YES is selected, R2 is off and the
is zero over all run up time, then:
a) If
R2 = OFF
b) If
R2 = ON
If NO is selected:
a) If running speed > speed threshold
R2 = OFF
b) If running speed < speed threshold
R2 = ON
8-15 FAULT signal 24 V, 60 mA, optically isolated
output (pin 15 positive pin 8 negative).
The output Voltage will be present when a fault
condition is detected.
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.
5
53
TECHNICAL INFORMATION
DESCRIPTION
running speed > speed
running speed < speed
8 8
15
15
9
9
1
1
Typical output connection
87-900-871-01 (B)
output
threshold
threshold
+24 V
+ 24