Mark V ProVis Injection System
14 - 4
Imaging System Interface Circuits are located on the ISI 100 Option
Card. The disarm and handswitch disable inputs are buffered by a sep-
arate circuit on the motherboard. For the following description, refer to
Figure 14.2.
Disarm Input Circuit
Inverters / buffers U3D and U3E comprise the Remote Disarm Input
Circuit. These components are controlled by an external switch clo-
sure, connecting J40 pins 6 and 8. When the external switch closes,
U3D activates a signal that disarms, or prevents arming of the injector.
When the external switch opens, the injector can then be armed.
CAUTION
:
Do not apply voltage to J40 pins 6 or 8.
Equipment damage or malfunction may result.
Handswitch Disable
Input Circuit
Inverter U3A and relay K3 comprise the Handswitch Disable Input Cir-
cuit. This circuit is controlled by an external switch closure, connecting
J40 pins 5 and 6. This circuit can disable the injector handswitch, mak-
ing the start of an injection possible only from a remote start control.
This disabling is useful in the prevention of miscued starts by the oper-
ator when connected to an imaging system. When the external switch
closes, relay K3 energizes and disables the handswitch circuit. When
the external switch opens, the handswitch circuit again functions nor-
mally.
NOTE
: This input disables the RJ Start Switch at J1 on Rack-
mount systems, and J3 on Pedestal systems.
NOTE
: When using this input, the injector can still be started
from the Control Panel (if the jumper on the the Control-
ler Card is connecting pins 1 and 2), J20, or J40.
CAUTION
:
Do not apply voltage to J40 pins 5 or 6.
Equipment damage or malfunction may result.
Handswitch
Operated Output
This circuit provides an indication that the handswitch is closed when
the Handswitch Disable circuit is active, through relay K2 and transistor
Q4. When J40 pins 5 and 6 are shorted, the Handswitch Disable circuit
is enabled, and the normal ground path of the handswitch is opened.
When the handswitch is depressed, Q4 will activate, supplying ground
to energize K2. This provides a relay closure at J40 pins 14 and 15,
thus supplying the external device with an indication then the hand-
switch is depressed. When the Handswitch Disable circuit is disabled,
J40 pins 5 and 6 are open, and K2 is disabled. Relay contacts at J40
pins 14 and 15 are rated for 28 VDC at 1 amp.
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Содержание ProVis Mark V
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Страница 15: ...Operating Guide 3 1 3 Operating Guide...
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Страница 30: ...Mark V ProVis Injection System 7 4 Figure 7 1 Block Diagram Servo Control Card...
Страница 31: ...Servo Control Card 7 5...
Страница 37: ...Mark V ProVis Injection System 9 4 Figure 9 1 Block Diagram Control Panel Digital Logic...
Страница 39: ...Mark V ProVis Injection System 9 6 Figure 9 2 Block Diagram Control Panel DC to DC Converter...
Страница 49: ...Mark V ProVis Injection System 10 10 NOTES...
Страница 60: ...Injector Head 13 7 Figure 13 1 Block Diagram Head Card...
Страница 61: ...Mark V ProVis Injection System 13 8 NOTES...
Страница 64: ...Imaging System Interface 14 3 Figure 14 1 Connector Locations...
Страница 67: ...Mark V ProVis Injection System 14 6 Figure 14 2 Block Diagram Imaging System Interface...
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