User manual

User Manual – Rev B FCS Series II
ENTRY DESCRIPTION
information.
MODE mode. The following two modes can be selected. Power on clock
LKM option installed, this field is
fixed to CLK/LOCK.
STAND Power up in INT (internal) clock mode for stand-
alone operation. This is the only mode for FCS units
without the –LKS option.
For units with the –
For units with the –LKS option installed, this field
can be changed to CLK/LOCK for use as an
auxiliary unit in a clock and lock system or to
STAND for use as a stand alone unit.
cannot be changed if the –LKM
option is installed.
e
CLK/LOCK Fixed on master (-LKM) unit configuration in a clock
and lock system. Power up with EXT (external)
clock mode on unit with –LKS option. (See OPTION
menu section.).
Note that this field
The frequency resolution below 81.9 Hz in MAST
clock and lock mode is reduced to 0.1 Hz from th
normal 0.01 Hz.
If the –HF option is installed, frequency resolution
on the –LKM unit is fixed at 1 Hz.
ALC STATE Sets the Auto Level Control (ALC) mode. This mode uses the
three modes of operation:
output regulation.
ion cannot be
maintained and the programmed output voltage is 10Vrms
or higher. No error is generated for settings below 10 volt.
In most situations, the ALC mode should be set to REG or ON for
optimal performance.
Note: The ALC mode only functions for programmed output
voltages above 10 Vrms.
internal measurement system to zero regulate the output. There are
OFF No measurement based
REG Output regulation is enabled. AC source will continuously
regulate output but will not trip off output.
(Note: This mode
requires firmware revision 0.98 or higher).
ON Output regulation is enabled and output will fault (trip off)
with Error 801 “Output Voltage fault” if regulat
VOLT REF Selects internal or external voltage programming. Select INT for
programming of voltage from the front panel or over the bus. Select
EXT to use the RPV. The RPV input expects a 0-10 Vdc signal for 0
to full-scale voltage.
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