AMETEK Lx Series II - Manual (Page 80)

User Manual Lx / Ls Series II
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ENTRY DESCRIPTION
stay off until re-engaged. In CC mode, the voltage will be reduced to
maintain the set current level.
4.2.5 CONTROL Menus
Figure 4-5: CONTROL Menus
The CONTROL menu is shown in Figure 4-5 and can be reached by selecting the Menu key,
selecting the CONTROL entry using the DOWN cursor key and then pressing the Enter key.
The CONTROL menu is used to change secondary output parameters. The following choices are
available in the CONTROL menus:
ENTRY DESCRIPTION
SENSE Selects internal or external remote sense mode. If INT is selected,
the voltage is sensed at the output terminal block. If EXT is selected,
the voltage is sensed at the external sense connector. If external
sense is selected, care must be taken to connect the external sense
lines at the load. For sense leads longer than 1 meter, twisted pairs
should be used.
SYNC Selects the external sync mode if available. Default is internal sync,
which means a free running time base. The timebase can be
synchronized to either the AC line frequency (-LNS option) or an
external sync signal (-EXS option) depending on the installed option.
CLOCK Selects internal or external clock source. The Lx/Ls Series controller
uses an open-air crystal time base with an accuracy of 100 ppm. The
external clock mode is used to support the
–LKS option. For use as
an auxiliary unit in a clock and lock system, this field must be set to
EXT. A unit with
–LKS option can be used stand-alone if needed by
setting the INT clock mode.
INT Default, internal clock.
EXT Auxiliary unit (-LKS) driven by master (-LKM) clock
input.
Note: When selecting EXT mode, make sure the
Clock and Lock BNC cables are connected to the
Master (-LKM) unit. If not, there will be no output on
the
–LKS unit. See section 3.9 for connection
information.