Yaskawa J7 Drive - Manual (Page 58)

5-23
Continued
C. Data 13 : External Base Block by N.C. Contact
Base block operation is the same as described above, except that the Base Block contact must be
open to be recognized.
D. Data 14 : Speed Search From Max Frequency
Data 15 : Speed Search From Set Frequency
A multi-function input terminal is utilized to activate speed search. When the external speed search
command is closed, the base is blocked for the min. base block time, then the speed search is
made. The operation depends on the set value.
IMPORTANT
Set values 14 and 15 CANNOT be selected in combination.
• When 14 is set, the speed search begins with the maximum frequency.
• When 15 is set, the speed search begins with the frequency command
command that has been set after the search command was received.
RUN
SIGNAL
SPEED SEARCH
MAX FREQ., OR FREQ.
REF. WHEN SPEED
SEARCH IS INPUTTED
OUTPUT FREQUENCY
VOLTAGE AT
SPEED SEARCH
OUTPUT VOLTAGE
MIN.
BASE
BLOCK
TIME
SPEED SEARCH
OPERATION
WITHIN 0.5 SEC
NOTE: When continuous operation mode at momentary stop function is selected,
the Speed Search command must be enabled.
Speed Search Operation Timing
SPEED COINCIDENCE
POINT
RETURN TO
NORMAL V/f
OUTPUT
5.17 MULTI-FUNCTION INPUT TERMINALS (Term. S1-S5)