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INTERCONNECTIONS
The following figure shows the Controller interconnections.
Connection P17 - Mains and Input/Output
Interconnections
Input/output signals and mains must be connected to
J17 mating connector (not provided). Make the
connections with AWG 20 (0.5 mm
indicated in the following figure, to obtain the desired
capability.
The following table describes the signals available on
the connector.
PIN
DESCRIPTION
a8
GROUND power connection.
a2
MAINS neutral connection.
b2
MAINS line connection.
a5
SIGNAL COMMON connection for all
input/output signals.
a6-a5
Remote
LOW
permanently closed contact (relay contact,
transistor
When the first time contact closes, the
turbopump runs at low speed and when
the contact opens, the turbopump reverts
to high speed mode.
All manuals and user guides at all-guides.com
Controller interconnections
2
) to the pins
SPEED,
requires
a
etc).
51
TECHNICAL INFORMATION
PIN
DESCRIPTION
a4-a5
R2 INTERLOCK, requires a permanent
closed contact to set at infinite the run-up
time.
After
closure,
when
reopened, the run-up time is set to zero
minutes.
b7-a5
Remote STOP signal, requires a closed
contact and it is used to stop the pump.
When
the
conract
turbopump
and
devices are stopped.
b8-a5
Remote RESET, requires a momentarily
closed contact for at least 0.5 seconds to
reset the pump after failure.
b6-a5
ANALOG OUTPUT SPEED signal 0 to
+10 Vdc proportional to pump rotational
speed 0 to 56000 RPM.
a7-a5
VENT
VALVE
+24 Vdc without load; +6.5 Vdc with vent
valve
load
The output voltage is present when the
turbopump is started, and will remain
present for about 5 more seconds after
the turbopump is stopped or after a power
failure.
the
contact
is
is
closed,
the
the
interconnected
output
voltage.
(430
Ohm).
87-900-856-01 (B)
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