Agilent Technologies N6700 manual Synchronizing Output Turn-on Delays, Tutorial

Appendix D Output On/Off Synchronization

Synchronizing Output Turn-on Delays

Tutorial

All N6700 Power Modules that are installed in an Agilent N6700 mainframe exhibit a minimum delay offset that applies from the time that a command to turn on the output is received until the output actually turns on. If you specify a user-programmed turn-on delay, this delay will be added to the minimum delay offset, resulting in a turn-on delay that is actually longer than the one you programmed. The minimum delay offset is shown in the following table.

Power Modules	Options and Mode	Minimum
		Delay Offset
N673xB, N674xB, N677xA	Without relays	32 ms
	With relay option 760	58 ms
N6751A, N6752A	Without relays	25 ms
	With relay option 760	51 ms
N6753A, N6754A	Without relays	18 ms
	With relay option 760	44 ms
N6761A, N6762A	Without relays	32 ms
	With relay option 760	58 ms
	Without relays; Current priority	23 ms
	With relay option 760; Current priority	45 ms

To determine which power modules are installed in your mainframe, select System\About\Module from the front panel. This identifies the power module and the installed options. If N676xA power modules are installed, send the OUTP:PMODE? query to determine if Current priority mode has been set.

To determine the actual turn-on delay between the “on” event (such as pressing the Output On key or sending an Output On command), you must add the programmed turn-on delay to the minimum delay offset as shown in the following example. In this example, if you program delay values of 10 ms, 20 ms, 30 ms, and 40 ms for output channels 1 through 4 respectively, the actual output delays will be 68 ms, 45 ms, 81 ms, and 72 ms for output channels 1 through 4.

N6731B w/relays (1)		58			10
N6751A (2)
		25	20
N6751A w/relays	(3)
		51		30
N6761A	(4)
		32	40

									milliseconds
10	20	30	40	50	60	70	80	90
ON	= internal delay offset
	= programmed turn-on delay

To synchronize power modules with different minimum delay offsets as shown above, you can specify a common delay offset parameter.

100 Series N6700 User’s Guide