Ransburg 80100 Series Service Manual page 20

9060 High Voltage Controller - Introduction
W A R N I N G
!
DO NOT attempt to use both analog
voltage and analog current at the same
time. The analog inputs are mutually ex-
clusive. Using both inputs simultaneous-
ly will damage the input circuit. Only one
analog input, current or voltage, can be
used at time to control the setpoint value.
Remote Mode Configuration is set to enable
Analog Control. For more information on how
to configure Remote Mode, please see the
Operation section of this Service manual.
Analog Setpoint Control
In analog setpoint control, the unit will output
voltage from the minimum voltage of 20kV (2V
or 4mA) up to the maximum kV allowed for the
specific gun configuration. Depending on the
analog control signal being used, the signal
can be adjusted from 0-10V (or 0-20mA) which
are mapped directly to 0-100kV. For example,
8 VDC (or 16mA) will produce an 80kV set-
point if it is within the maximum voltage of the
applicator. After the applicator's maximum
setpoint is reached, further increases in analog
signal will NOT result in a setpoint increase.
The lower part of the range below 2V (4mA)
will set the cascade to output 0kV allowing for
the cascade to remain energized while output-
ting no voltage.
value can be adjusted at any time during
operation of the unit as long as the unit is in
remote mode, regardless of the state of the HV
trigger signal.
Analog Voltage Signal
The analog voltage signal (TB3-7) is an input
control signal that adjusts the KV setpoint
scaled relative to the voltage signal applied.
The allowable range for the voltage control
signal is 0-10V mapped directly to a setpoint
range of 0-100kV, or (1V per 10kV). When the
analog signal is less than 2V, the KV setpoint
is set to 0kV and the cascade outputs no
voltage.
Analog Current Signal
The analog current signal (TB3-6) is an input
15
The analog control signal
control signal that adjusts the KV setpoint
scaled relative to the current signal applied.
The allowable range for the current control
signal is 0-20mA mapped directly to a setpoint
range of 0-100kV, or (2mA per 10kV). When
the analog signal is less than 4mA, the KV
setpoint is set to 0kV and the cascade outputs
no voltage.
N O T E
Although the allowable range for the
analog current signal does include 0mA-
3mA, it will normally be listed as 4-20mA
as the 0-3mA portion of the range is insuf-
ficient to override KV setpoint control.
Analog Common Signal
The analog common signal (TB3-8) is the
connection for the common reference (-) of the
analog signal source. It is used as the com-
mon for both the voltage and current signal.
Analog Output
The 9060 High Voltage Controller provides a
single analog output signal that can be used
for monitoring the current output. This output
can be used for simple monitoring or it can be
used by the control system to allow for closed
loop analog setpoint adjustment.
Analog Current Signal
The analog current output signal (TB3-9) is a 0
-10V signal scaled to represent a 0-200µA
current output range (20µA/1V or approximate-
ly 1uA/50mV). The current signal provided can
easily be integrated with common systems like
PLCs.
Relay Contact Outputs
The relay contact outputs are the HV On and
Fault outputs that were previously described in
the Signal Interface - Local Mode section.
Their descriptions are duplicated here for
completeness.
CP-13-05.3