SL2KW SERIES MANUAL
2
118088-001 REV C
1.2 Standard Features
The SL2KW Series incorporates several standard features
designed to optimize user satisfaction and safety.
SLOW START:
This feature provides a gradual
increase in high voltage until the preset operating
point is reached. The slow start time is factory set
for 6 seconds. Other slow start times are available as
an option.
ARC DETECT / ARC QUENCH / ARC COUNT
:
These features allow the user to tailor the power
supply to meet specific needs in dynamic load
applications. If an arc occurs, the output is inhibited
for approximately one second, then the output is
ramped up to the preset level with the slow-start
circuitry. See Chapter 3 for operating details and
information for user customization of these features.
INTERNAL FAULT PROTECTION
: The SL
Series continually monitors internal circuits critical to
the proper operation of the power supply. In the
event that one of these circuits does not function
correctly, the fault detection circuit latches the
appropriate fault on the front panel display and turns
off the output and reverts the unit to the POWER
DOWN mode.
INDICATOR LAMPS
: LINE POWER, HIGH
VOLTAGE OFF AND HIGH VOLTAGE ON
indicators.
OUTPUT CABLE:
All models are provided with a
ten foot shielded high voltage output cable. The
cables are designed with a plug arrangement so that
they can be easily removed from the mating
receptacle located on the rear of the chassis.
1.2.1 Remote Operating Features
REMOTE PROGRAMMING
: Allows remote
adjustment of the output voltage and current via an
external voltage source.
REMOTE MONITOR
: Allows remote monitoring
of the output voltage and current.
REMOTE HIGH VOLTAGE CONTROL
:
Allows remote control of HIGH VOLTAGE ON and
HIGH VOLTAGE OFF. Signals are also provided
for remote indication of HV ON or HV OFF status.
EXTERNAL INHIBIT
: A control signal that will
inhibit the high voltage output is provided on the
external interface. A logic low, ground, will inhibit
the high voltage output and a logic high, open, will
restore the high voltage output to the preset level.
NOTE:
The External Inhibit circuit should NOT be used
for protection against injury or for safety interlock.
See External Interlock for this type of safety control.
EXTERNAL INTERLOCK:
Interlock connections
are provided on the external interface on the rear of
the chassis for connection to a safety switch. The
unit will not operate unless the interlock circuit is
closed. During high voltage operation, opening the
interlock circuit will cause the High Voltage to shut
off. This circuit should be used for safety interlock
circuits.
1.2.2 System Status and Fault
Diagnostic Display
“Dead Front” type indictors are provided to give the user
complete indication of system operation and fault
conditions. If a fault occurs, the power supply will revert
to the POWER DOWN mode. This is indicated by both
the HV ON and HV OFF lamps turning off. To reset,
depress the HV OFF switch.
VOLTAGE (CONTROL):
Indicates the output
voltage regulator circuit is maintaining voltage
regulation.
CURRENT (CONTROL):
Indicates the output
current regulator circuit is maintaining current
regulation.
HV INHIBIT:
Indicates that the high voltage
supply is being inhibited by either the EXTERNAL
INHIBIT or internal protection circuitry.
INTLK CLSD:
Indicates the EXTERNAL
INTERLOCK connections are in the closed position.
This also indicates closure of internal power supply
interlocks.
