Ransburg HV Controller A12311 - Manual (Page 8)

INTRODUCTION
GENERAL DESCRIPTION
The Ransburg High Voltage Controller (A12311-
00 or FRA # EE-4526-300), in conjunction with an
appropriate cascade (A12295-00 [FRA# EE-4526-
800] or A12296-00 [FRA# EE- 4626-801]), is used
to provide high voltage for electrostatic application
equipment. The controller is packaged in a single
package measuring 5.5" tall X 7.5" wide X 3.5 “
deep. The controller can operate in “Local” and
“Remote” conditions with either “Voltage Mode” or
“Current Mode” of high voltage operation.
The Ransburg High Voltage Controller uses a
combination of proven high voltage generation
technology including microprocessor-based con-
trol with diagnostic and communication functions.
It uses a variable voltage output to drive a cas-
cade that amplifies the voltage to a high value. It
also uses feedback with both current and voltage
information to attempt to maintain actual value at
set point. The processor circuitry provides the
maximum in applicator transfer efficiency, while
maintaining the maximum safety.
SAFETY FEATURES
When used with the appropriate applicators and
cascades, the Ransburg High Voltage Controller
provides the ultimate in operational safety. The
protections include Overvoltage, Overcurrent, Di/
Dt and Dv/Dt. The microprocessor circuits allow
the use of the output load curve control, which
limits the high voltage output to safe levels when
the controls are set responsibly and safe distances
are observed and followed.
Figure 1: High Voltage Controller
DISPLAY
The front panel displays the high voltage and
current output from the cascade as true readings.
They are derived from feedback signals in the
low voltage cable between the controller and the
cascade.
High Voltage Controller - Introduction
6
Ransburg
LN-9623-00.1