Ransburg HV Controller A12311 - Manual (Page 17)

CONTROL CONDITIONS
Power Up
On power up, the system does several checks to
determine hardware status. It checks various sig-
nals to determine that there are no faults, including
feedback from the Variable Voltage Output and
High Voltage Inputs to determine system status.
If it determines that it is OK to start, the Check
display on the run menu changes from NoGo to
OK and System Status changes to OK.
HV On
When the HV On signal is received, the system
status changes to "Starting" and the Variable Volt-
age Output is increased until the Indpendent Value
rises to within a tolerance window (currently +/-3)
of the setpoint value. Then the System Status
changes to "Running".
Setpoint Changed
If the setpoint changes outside the control window,
the status changes to "Rising" or "Falling" until the
Independent Value again reaches the window at
which point it returns to "Running".
HV Off
On HV Off the system immediately sets the Vari-
able Voltage Output to zero volts, disables the
HV Relay and goes to Stop Mode. The System
Check goes to NoGo until the High Voltage and
Variable Voltage Output feedback again reach the
pre-determined value.
SYSTEM STATUS (STS)
OK
System is off and ready to start.
Starting/Rising/Falling
System is changing from one voltage/current value
to another. Di/dt and dv/dt checks are disabled.
Running
System is attempting to keep a steady value on
Setpoint (the Independent Value). All enabled
checks are active.
Stopping
System is off and waiting to transient voltages/
currents to stop.
Warning
System has detected a current or voltage condi-
tion within 10% of the limit settings.
Fault
System has detected a fault condition, stopped
and will not allow starting until the fault is cleared.
If the fault condition has not been cleared, it may
immediately fault without starting.
SYSTEM CHECK (CHK)
OK
System has passed the checks and is ready to start.
NoGo
System has detected excessive voltage on the
High Voltage or Variable Voltage Output Feedbacks
and will not allow a start.
High Voltage Controller - Operation
15
Ransburg
LN-9623-00.1