Sedecal SHF-310 - 5 System Interconnections; System Interconnection Signals

HF Series Generators
Installation
IN-1052R0
39
SECTION 5 SYSTEM INTERCONNECTIONS
5.1 SYSTEM INTERCONNECTION SIGNALS
All input signals are active low. This means the inputs must be pulled to ground
(chassis ground of the Generator) thru relay contacts, by a transistor or other
switching device. The current requirement of the s witch is less than 10 mA.
Do not apply 115 / 220 VAC logic signals to any of the logic
inputs. If 115 / 220 VAC logic signals are used in the X-ray
table, these signals must be converted to a contact closure
by a relay.
The outputs signals from the Generator to the subsystem devices are usually
active low (switched to chassis ground of the Generator). The outputs are open
collector transistor drivers with a maximum current of 0.5 Amperes.
Table 5-1
System Interconnection Signals
SIGNAL NAME SIGNAL DESCRIPTION
AUX BUCKY SPLY External voltage supply required for the Bucky motion, when this voltage is not +24 VDC.
--BUCKY 1 DR CMD A low signal to the Interface Control Board as a command to output a Bucky-1 (normally the Table Bucky) drive signal.
--BUCKY 1 MOTION This low going signal from Bucky-1 indicates Bucky-1 motion, and therefore the exposure is enabled.
BUCKY 1 DR This signal is originated from the Bucky supply of the Power Module when an exposure order. It starts the Bucky.
--BUCKY 2 DR CMD A low signal to the Interface Control Board as a command to output a Bucky-2 (normally the Vertical Bucky Stand) drive signal.
--BUCKY 2 MOTION This low going signal from Bucky-2 indicates Bucky-2 in motion, and therefore the exposure is enabled.
BUCKY 2 DR This signal is originated from the Bucky supply of the Power Module when an exposure order. It starts the Bucky.
--BUCKY EXP This low going (0 volts) signal starts the Bucky exposure. The signal originates on the Interface Board
BUCKY SPLY Voltage supply required for the Bucky drive command.
C--HT CLK Serial data clock to the HT Control Board. This clock synchronizes the C --HT DATA signal.
C--HT DATA Serial data to the HT Control Board. This data is synchronous with the C--HT CLK signal.
--COLLIMATOR
This active low signal indicates that NO EXPOSURE HOLD condition exists at the Collimator. This input is read only when the
Radiographic Tube is selected.
--DOOR This low signal is the interlock for the Door of the X-ray room.