ADCMT 6253 - Restrictions on Tp, Tp (Ext), Th, and Th (Ext); TA Value

6253 DC Voltage Current Source/Monitor Operation Manual
4.2.10 External Control Signals
4-63
4.2.10.1 Restrictions on Using External Trigger
This section describes restrictions on using the external trigger (TRIGGER IN signal).
The TRIGGER IN signal controls the source and measurement timings to synchronize with external
devices as the slave channels.
Confirm the following restrictions before using the external trigger to prevent any malfunctions in source
and measurement.
Restrictions:
1. Do not input the TRIGGER IN signal in the Standby status, or when switching between Operate,
Suspend, and Standby.
2. Ensure that the TRIGGER IN signal, trigger from the TRIG key and remote trigger (*TRG) do not
overlap.
3. Restrictions on setting the setting period Tp and hold time Th
When the external trigger (TRIGGER IN signal) is used, there are restrictions on setting the period
Tp and the hold time Th. (See Table 4-13 and Table 4-14.)
4. Restrictions on the time Thp (ext) from sweep start to the next trigger signal input
For the sweep source mode, there are restrictions on setting the time Thp (ext) from the trigger signal
input for sweep start to the trigger signal input for the next step. (See Table 4-13 and Table 4-14.)
5. Restrictions on the required time Top from specifying Operate to inputting the external trigger
The minimum time is required for the time Top from specifying Operate by a remote command or the
external signal (OPERATE IN signal) to inputting the external trigger. (See Table 4-15.)
6. Allow the 6253 at least 10 ms after completion of the previous sweep to input the TRIGGER IN signal
for sweep start.
7. If the TRIGGER IN signal timing and the measured value display timing match, synchronization may
be lost. In this case, set the display OFF or perform BUSY/OUT control.
Table 4-13 Restrictions on Tp, Tp (ext), Th, and Th (ext)
Measurement
Tp, Tp (ext) Tp (ext) min Th, Th (ext) Thp (ext)
OFF 0.1 ms Tp Tp (ext)-TA 0.7 ms
0 ms Th Th (ext)-0.1 ms
0.1 ms Th (ext)
Thp (ext)
=Th (ext)+Tp (ext)
ON 0.5 ms Tp Tp (ext)-TA 1 ms
Table 4-14 TA Value
TA value Tp setting time
1 ms 0.050 msto 60.000 ms
1 ms 60.01 ms to 600.00 ms
1 ms 600.1 ms to 6000.0 ms
2 ms 6001 ms to 60000 ms