PTV MANUAL
5
118012-001 REV B
Chapter 3
Operating Instructions
3.1 Operation
WARNING
THIS EQUIPMENT GENERATES
DANGEROUS VOLTAGES THAT MAY BE
FATAL. PROPER GROUNDING OF ALL HIGH
VOLTAGE EQUIPMENT IS ESSENTIAL.
IMPORTANT:
Before connecting the power supply to the
AC line, follow this step-by-step procedure.
Do not connect the power supply to the AC
line until Step G is reached.
Failure to follow these procedures may void
the warranty.
A)
Insure that the high voltage cable is properly
terminated to the load. Insure that all circuits connected
to the high voltage output are safely interlocked against
accidental contact. Insure external load is discharged.
B)
Check the input voltage rating on the serial
nameplate of the supply and make certain that this is the
rating of the available power source. PTV modules
operate on 115VAC unless ordered with a different input
voltage option.
C)
PROPER GROUNDING TECHNIQUE:
The
chassis of high voltage power supplies must be grounded,
preferably to a water system ground using copper pipe or
other earth ground. See Figure 3.1 for a typical operating
setup. The return line from the load should be connected
to the power supply chassis. Using a separate external
ground at the load is not recommended. An IEC 320
connector is provided for connection to the line voltage
source. A standard three prong line cord is also provided.
D)
Options Note
: See section 5 for hook up and
operating instructions for the options on your unit.
Custom models may also require set up changes.
E)
Hook-up:
Connect control and monitoring
connections as described in this manual.
F)
For initial turn-on, program the voltage and
current for zero output. Connect the enable/disable signal
to disable.
G)
The input power cable may now be connected to
the AC power line.
H)
Enable the power supply via the enable/disable
logic signal.
I)
Slowly program the output voltage and current
to desired level. Monitor the output voltage and current
via the monitoring test points. Note equipment operation
is normal, i.e. Load is behaving as predicted.
J)
To turn high voltage off, use the enable/disable
signal. If equipment is to be kept off for extended
periods, disconnect power supply from line voltage
source.
Note:
If an over voltage condition occurs, the power
supply will latch off. To reset the power supply, remove
the line voltage and reconnect.
WARNING
AFTER TURNOFF, DO NOT HANDLE THE LOAD
UNTIL THE CAPACITANCE HAS BEEN
DISCHARGED!
LOAD CAPACITANCE MAY BE DISCHARGED BY
SHORTING TO GROUND.
WARNING
THE VOLTAGE MONITOR ON THE POWER
SUPPLY FRONT PANEL DOES NOT READ THE
OUTPUT VOLTAGE WHEN THE POWER IS
TURNED OFF, EVEN IF A CHARGE STILL
EXISTS ON THE LOAD.
CAUTION
ALWAYS OPERATE THE UNIT WITH THE COVER
ON. DO NOT ATTEMPT TO ACCESS OR REPAIR
ANY INTERNAL CIRCUITS. DANGEROUS AND
LETHAL VOLTAGES ARE GENERATED INSIDE
THE MODULE.
