
Software Comparator
Function
HW
Threshold
HV Over Voltage (window compare to program ref)
DSP +10%
HV under voltage (window compare to program ref)
DSP _-10%
mA Over Current (window compare to program ref)
DSP Fast
mA under Current (window compare to program ref)
DSP Fast
Over Power (user setting)
DSP +5%
½ kV ref vs. kV mon (used in switching from preheat to ECR)
---
LVPS Fault (window compare)
DSP
Over Temp (fixed thres)
DSP
50 Deg C
Temp Warning
DSP
45 Deg C
DC Rail Monitor (window comparator)
DSP +/-10%
AC Line Monitor (window comparator)
DSP +/-10%
kV Diff (Bipolar units , compares Cathode - Anode)
DSP +/-10%
mA Diff (Bipolar units , compares Cathode- Anode)
DSP +/-5%
Digital logic functions are implemented in the DSP. All of the fault latching is done in the
DSP. The DSP is field programmable. An array of Fault/Status LED’s located on the
front panel provided a visual indication of the status of the HVPS, and to identify fault
conditions.
The DSP supports remote communications and diagnostics over RS-232, Ethernet and
USB. The other main function of the DSP is to support and control the factory settings,
which include DAC settings, ADC output settings, Digital Pot values and operational
configuration settings. These factory settings and user setting are programmed over the
communication port like RS-232 using the GUI control software.
XRV SERIES
Page 22
118116-001 REV C