GW Instek APS-1102A User Manual - Manual (Page 169)

5 MENUS
APS-1102A 5-35
5.5.5 Setting range limiter (LIMIT)
The setting range limiter indicates the LIMIT screen, enabling the setting range of output voltage and
output frequency to be limited when the signal source mode is the internal signal source mode (AC-INT,
AC+DC-INT) or internal + external signal source mode (AC-ADD, AC+DC-ADD), and the setting range
of the output voltage to be limited when in the external sync mode (AC-SYNC, AC+DC+SYNC).
The numeric values shown in Table5-23 are set on this screen.
See b) Using s etting range limit in “3.4.7 Using limiter functions”.
Table5-23. Setting Range Limit (LIMIT)
Setting
Name
Setting
Output
Voltage
Range
Setting Range Resolution
Initial
value
Unit
+Vo
Positive voltage
setting limit
100 V
+0.1 to +220.0
0.1 +220.0 V
200 V
+0.1 to +440.0
0.1 +440.0 V

Vo
Negative voltage
setting limit
100 V 
220.0 to

0.1
0.1

220.0 V
200 V 
440.0 to

0.1
0.1

440.0 V
F Up Frequency setting upper limit
1.0 to 550.0
0.1 550.0 Hz
F Lo
Frequency setting lower limit
1.0 to 550.0
0.1 1.0 Hz
 The setting range limit sets the limit for AC peak value + DC.
For example, when +Vo limit is +200.0 V, and the DC setting has already been set to 100.0 V, the
AC limit setting becomes 70.7 Vrms (100.0 Vpk).
 The voltage setting range limit that does not include an output voltage already set cannot be set.
 The same setting range limit is used for all output modes. Not only the currently selected output
mode setting, but the settings for all other modes are restricted by this limit. (The APS-1102A
stores the setting for each output mode.)
The following describes an example where the selected output mode is AC -INT and the limit is
set to prevent the output voltage from exceeding 100.0 Vrms.
In this case, the output limit range must be set to

141.4 V (100.0 Vrms), but this setting cannot
be made unless the output voltage setting is 100.0 Vrms or less for the other output modes where
the output voltage can be set, i.e., the AC-ADD, AC-SYNC, AC+DC-INT, AC+DC-ADD, and
AC+DC-SYNC modes. If the setting for AC-ADD is 110.0 Vrms, the setting range limit cannot
be set within

155.5 V (110.0 Vrms), even if the setting for the selected AC-INT is 100.0 Vrms.
Memory and sequences are not subject to setting range limits.