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2-55
PA 7300
PART II: OPERATION MANUAL
SEARCH
COMMAND
FWD (REV) RUN
COMMAND
AGREED SPEED
DETECTION
MAX. FREQUENCY OR
FREQUENCY REF. VALUE
WHEN SEARCH
COMMAND IS ASSERTED
OUTPUT
FREQUENCY
MIN. BASEBLOCK
TIME
VOLTAGE AT
SPEED SEARCH
OUTPUT
VOLTAGE
SPEED SEARCH
OPERATION
RETURN TO
THE VOLTAGE
AT NORMAL
RUN CONDITIONS
SEACH
COMMAND
FWD / REV RUN
COMMAND
<
Example of Sequence
>
RELAY 1
RELAY 2
RELAY 1
SEARCH
COMMAND
FWD (REV) RUN
COMMAND
AGREED SPEED
DETECTION
MAX. FREQUENCY OR
FREQUENCY REF. VALUE
WHEN SEARCH
COMMAND IS ASSERTED
OUTPUT
FREQUENCY
MIN. BASEBLOCK
TIME
VOLTAGE AT
SPEED SEARCH
OUTPUT
VOLTAGE
SPEED SEARCH
OPERATION
RETURN TO
THE VOLTAGE
AT NORMAL
RUN CONDITIONS
SEACH
COMMAND
FWD / REV RUN
COMMAND
<
Example of Sequence
>
RELAY 1
RELAY 2
RELAY 1
The following shows the time chart where the speed search command is asserted.
Notes:
1. During momentary power loss operation continuation mode, the speed search operation is
performed beginning with the current output frequency, regardless of the setting for the
search command. After completion of the speed search, the operation is performed according
to the run command.
2. Determine a sequence so that the FWD/REV run command starts at the same time or later
than search command.
3. More than two search commands with set values 61 and 62 cannot be set.
15
Integral value reset (set value = 65)
• Integral value, I, is reset to 0 when an integral value reset command is asserted from the
multifunction contact inputs (terminal 5 ~ 8, set 65 either to Sn-15 to 18)
16
PID control cancel (set value = 66)
• The PID control circuit can be canceled by the multifunction contact input signal. Set 66 on
either Sn-15 to 18 and close the contact (terminals 5 to 8) during run. Then the PID
control circuit is canceled and the set point signal is used as a frequency reference signal
without being changed. In this case, the signal input level is 0 the 10V (or 4 to 20mA)/0 to 100%.
Содержание PA7300 Series
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