SL2KW SERIES MANUAL
20
118088-001 REV C
Chapter 5
O
PTIONS
he options available for this power supply are
described in this section. Interface diagrams are
shown where required. Options are specified by
including the option code in the model number as
described in Section 1.5.
5.1 AOL - Adjustable Overload
Trip
A control board jumper is moved to make the power
supply shut down if it ever operates in current mode.
This allows the user to set the current programming level
as a trip point that will turn the power supply off with an
Over Current fault if it ever tries to operate in Current
Mode.
5.2 APT – Adjustable Power Trip
A third control loop is installed in the power supply, a
power loop. This power loop uses an analog multiplier
chip to multiply the voltage and current feedback signals
to create a power feedback signal. Programming and
feedback scaling is 0- 10Vdc = 0-100% of rated power.
The circuit is configured to trip the power supply off with
an Over Power fault if the power loop ever tries to
regulate.
5.3 ARC – Arc Sense
A signal is provided on a spare pin (TB1-21) that changes
state whenever the power supply detects an arc.
5.4 AT – Arc Trip
A control board jumper is moved such that the first arc
sensed will shut the power supply off with an ARC fault.
5.5 BPM/BPS – Bipolar
Master/Slave
The Bipolar Master/Slave option allows two supplies of
the same voltage rating but opposite polarities to
functions as a single tracking bipolar power supply. The
positive supply is configured as the Master, the negative
supply is configured as the Slave. This is accomplished
by connecting the Voltage Test Point of the positive
(Master) unit to the Voltage Programming of the negative
(Slave) unit. See Figure 5.4. The Master’s voltage
programming signal will provide control of both power
supplies from zero to rated output voltage. The negative
polarity will track the positive polarity within ±1% from
10% to full rated output. Performance specifications are
governed by individual unit characteristics. The two units
must be connected independently to their respective loads
and ground.
5.6 CMS – Current Mode Select
A front panel switch is provided to allow the power
supply to either regulate in current mode or create an over
current fault when operated in current mode, which will
shut down the supply. This is basically a switch
selectable AOL option.
5.7 CPC – Constant Power Control
Identical to the APT Option with the exception the power
supply will run and regulate when the power loop
becomes active.
5.8 DPM4 - Digital Panel Meter, 4.5
Digits
The standard 3.5 digit front panel meters are replaced
with 4.5 digit panel meters.
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