YASKAWA GPD-506V

5-37
Continued
G. Ref Sample Hold (24 ) : Sample/Hold Command
This function applies only to an analog voltage or current input used as a frequency
reference at terminals FV or FI.
If the Sample/Hold command is present (contact is closed) for more than 0.1 sec., the
frequency reference will follow (sample) the analog signal, e.g. if 5V corresponds to 50%
frequency, a 5V analog signal will produce 50% frequency reference if the Sample/Hold
command is present.
If the Sample/Hold command is removed (contact is opened) while the Drive is still in Run
condition, the frequency reference is held at the level it was at the time the Sample/Hold
command was removed, e.g. the frequency reference would remain at 50%, even though
the analog signal increased to 8V.
5.19 MULTI-FUNCTION INPUT TERMINALS (Term. S2-S6)
Sample/Hold Function Timing
SAMPLE/
HOLD CMD
Open
10V
100%
80%
50%
8V
5V
t1
0.11
sec.
0.1
sec.
t2
0.05
sec.
t3
0.15
sec.
Closed
ANALOG INPUT
FREQ. REF.
0.1
sec.