Section 2: Installation
2.6 Cable Installation
0101-8242-0, Rev. C
2-15
CV-6SLX User Manual
Table 2-1 Descriptions of I/Os Exchanged via HVPS Rear Panel
Connector J4 and the HVPS I/O Cable (PN 0620-6682-0)
Signal Name
Pin I/O Type Description
KV SET IN
1
Analog
input
HV adjustment input, 0-10 V dc = 0-10 KV. Controls high voltage if Pin 5 is high, in
which case the HVPS front panel OUTPUT kV ADJUST pot is disabled.
ANALOG COMMON
2
Analog
common
Common for KV MONITOR OUT and mA MONITOR OUT outputs (see Pins 3 and 4), if
used. Connect to vacuum system ground.
KV MONITOR OUT
3
Analog
output
High voltage monitor output, linear (0-10 V dc = 0-10 kV).
mA MONITOR OUT
4
Analog
output
Emission current monitor output., linear. Scaling is factory set (0-10 V dc = 0-1500 mA).
REMOTE/LOCAL IN
5
Digital
input
Selects either remote or local HV control. If high, (i.e., if +24 V dc is supplied), then 0-
10 dc input via Pin 1 controls HV exclusively. If low, then HVPS front panel OUTPUT kV
ADJUST pot exclusively controls the high voltage.
I/O SWITCHES POWER
6 DC voltage + 24 V dc output, fused at 1 A. Can be used to supply Pin 5, if remote HV control via
Pin 1 is desired. NOTE: To be used only for power supply control; do NOT use this
voltage to drive any external device.
DIGITAL COMMON
7
Digital
common
Common for digital indicator signals output via Pins 12, 13, 14, 15, and 16, if any of
them are used.
HV ON IN +
8
Digital
input
Controlled by a normally open external switch. If HV OFF IN + is high, then a
momentary contact closure between Pins 8 and 9 switches the high voltage ON.
HV ON IN –
9 DC voltage + 15 dc output supplied to Pin 8 via a normally open switch.
RESET +
10
Digital
input
Controlled by a normally open external switch. If the POWER SUPPLY FAULT
INDICATOR output (Pin 13) is true, then a momentary contact closure between Pins 10
and 11 resets the HVPS.
RESET –
11 DC voltage + 24 dc output supplied Pin 10 via a normally open switch controlling.
HV IS ON INDICATOR
12
Digital
output
When high (+24 V dc), this output indicates that the high voltage is ON.
POWER SUPPLY FAULT
INDICATOR
13
Digital
output
When high, this output indicates that a latching power supply fault has occurred. For
additional details about latching PS faults, see section 5.2.
HV READY INDICATOR
14
Digital
output
When high, this output indicates that the HV can be switched on. This indicator is high
when the HV OFF IN+ input supplied via Pin 17 is high.
OUT OF REGULATION
INDICATOR
15
Digital
output
High whenever the HVPS front panel HV OUT OF REGULATION LED is lit. For additional
details about that LED, see section 5.2.
INTERLOCK OK INDICATOR 16
Digital
output
High when all interlocks are made, so that the REMOTE INTERLOCK IN input (Pin 24) is
high.
HV OFF IN+
17
Digital
input
Controlled by a normally closed external switch. This input is high when the HV is OFF
and when no latching power supply faults exist. When the HV is ON, then momentary
opening of the external contact closure between Pins 17 and 18 switches off the HV.
HV OFF IN–
18 DC voltage + 15 dc output supplied to Pin 17 via a normally closed switch.
REMOTE INTERLOCKS IN
24
Digital
input
High when the external interlock string is made; connect to Pin 24 via external interlock
switches.
REMOTE INTERLOCKS OUT 25 DC voltage + 24 dc output, fused at 0.2 A and supplied to Pin 24 via external interlock switches.
NOTE: Minimum external interlocks required are WATER (= e-beam gun’s water-flow
switch is true), DOORS (= all vacuum cubicle doors are closed), and VACUUM (=
vacuum system is pumped down to crossover point). If e-beam position is controlled by
a beam sweep controller, a POSITION interlock signal from that component must also
be true. NOTE: Within the HVPS, the external interlock string is connected in series with
the internal interlocks for the HVPS and FPS covers.
