Table 3-12: Clock And Lock Initialization Settings - Ametek California Instruments MX15 Series User Manual

Ac and dc power source

Table of Contents

3.10.2 Clock/Lock Initialization Settings

The mode of operation of the MX15 is determined by the MODE setting in the CONTROL menu.

If the clock and lock option is enabled, three choices will be available for this field: STAN,

MAST, and AUX. Changing the MODE to either MAST or AUX will cause the power source to

power on in clock and lock mode.

Available initial settings and their relationship to the Clock and Lock mode of operation are

shown in the table below.

INITIAL SETUP 3 Field

CLK /LOC

3.10.3 Clock/Lock and External Sync Mode

Note that an MX15-LKS auxiliary unit is factory configured to operate in Clock and Lock mode

when EXT clock mode is selected. This means that an MX15-LKS cannot be used in normal

external sync mode. However, the MX15-LKM master unit can be operated in external sync

mode.

Furthermore, since the MX15-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.

Note: When the clock and lock option is enabled, each power source will have all three settings

available in the MODE field. The master box must be set to either STAN or MAST and the

auxiliary box must be set to either STAN or AUX or the clock and lock feature will not work

correctly.

3.10.4 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 deal

with all MX 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 (MX'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 MX's must be set to different address values in the CONFIGURATION menu.

Note:

This mode of operation is not supported by the VIRTUAL PANELS Windows

software supplied with each MX15 unit.

Parameter

STA N

Normal stand alone mode of operation. For standard M X 15

power source with no clock and lock mode of operation.

M A ST

For master (-LK M ) power source in clock and lock mode of

operation.

A UX

For auxiliary (-LK S) power source in clock and lock mode of

operation. Powers up with clock mode set to external.