Prodigit 3260A Series - Initial Setting Parameter of 3260 A Series High Power Electronic Load; Fig.3-6 Description of Sync

PRODIGIT 3260A Series Operation Manual 25
3.4.3 SYNC Selection:
3.4.3.1 Exterior SYNC Signal(SYNC ON)
The user can input a SYNC signal to the Analog Programming Input BNC
terminal of the back plate of 3260A. Based on this exterior SYNC signal,
3260A Series High Power Electronic Load can be conversed to SYNC
trigger signal via internal isolated circuit thus controlling the SYNC of the
load current and voltage, in other words, the phase of load current will vary
with SYNC trigger signal.
Note：The SYNC signal input from exterior must be the signal of which the
duty cycle is 50%.
3.4.3.2 Internal SYNC signal(SYNC OFF):
The internal SYNC signal source of 3260A Series High Power Electronic
Load is taken from the signal at the end of input connector for generating
current SYNC signal via internal zero crossing circuit and isolation circuit.
Zero Crossing
SYNC
Input
SYNC "OFF"
+5V
330Ω
SYNC
EXT+
EXT-
SYNC "ON"
Fig.3-6 Description of Sync.
3-5 Initial setting parameter of 3260A Series High Power Electronic
Load
The initial setting parameters of 3260A Series High Power Electronic Load are described
from Table 3-3 to 3-11 respectively.
3.5.1 Last Setting
All 3260A Series High Power Electronic Loads have the function for simplifying the
setting procedures. This function is called〝Last Setting〞e.g., All 3260A Series High
Power Electronic Load, undergone the initial inspection program procedure (Power
on), can be immediately changed back to the setting condition prior to Machine OFF
thus simplifying the procedures for re-setting after machine being turned off.
3.5.2 Reset
If the memory data of 3260A Series High Power Electronic Load has been sabotaged,
for example, unstable power source or noises will result in possible error of
information in NVRAM (such as the indication on the front panel is different from the
actual condition), under such a case, reset shall be made to correct the errors.
For reset of 3260A Series High Power Electronic Load,〝SENSE〞and〝PRES〞
button shall be depressed simultaneously. In such a case, the front panel monitor will
display model number and edition repeatedly and initialize the setting parameter of
3260A Series High Power Electronic Load as shown in Tables 3-3 ～ 3-10 until the