User Manual AMETEK Programmable Power
RS Series 56
3.9.2 Clock/Lock Initialization Settings
The mode of operation of the RS-LKS auxiliary unit is determined by the Clock mode set in the
PROGRAM2 screen. Since most clock and lock systems are permanently used in this
configuration, the clock mode can be set to EXT (External) at power on by using the INITIAL
SETUP3 screen.
Available initial settings and their relationship to the Clock and Lock mode of operation are
shown in the table below.
Description
CLK/LOC STAND Normal stand alone mode of operation. For
standard RS power source with no clock and
lock mode of operation.
MASTER For master (-LKM) power source in clock and
lock mode of operation.
AUX For auxiliary (-LKS) power source in clock and
lock mode of operation. Powers up with clock
mode set to external.
Table 3-13: Clock and Lock Initialization settings
3.9.3 Clock/Lock and External Sync Mode
Note that an RS-LKM auxiliary unit is factory configured to operate in Clock and Lock mode
when EXT clock mode is selected in the PROGRAM2 screen. This means that a RS-LKS
cannot be used in normal external sync mode. However, the RS-LKM master unit can be
operated in external sync mode. Note: External sync mode not available with the FC option
Furthermore, since the RS-LKM master unit is factory set for Master mode of operation, it in turn
cannot be used as an Auxiliary source in a clock and lock configuration.
3.9.4 Remote Programming of Clock and Lock systems
Since clock and lock systems have multiple autonomous controllers that are synchronized in
frequency, remote programming of these systems requires that the application program deals
with all RS controllers. This often precludes the use of RS232C as generally not enough serial
ports are available. The use of GPIB instead also offers the advantage of using the Group
Execute Trigger (GET) capability to effect output changes on all phases (RS's) simultaneously
which is otherwise difficult to do.
To set up a GPIB remote controlled clock and lock systems, the GPIB addresses for the
individual RS's must be set to different address values in the UTILITY1, GPIB/RS232 SETUP
screen.
Note: This mode of operation is not supported by the RSGUI Windows software
supplied with each RS unit.
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