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The output frequency is retained internally, so the same frequency will be output again when the base-
D
block command is cleared. The output frequency will change in a step pattern when the output re-
sumes, so take some safety precaution such as turning OFF the run command - - especially if the base-
block command was input when the motor was operating at high speed. (When the run command is
turned OFF, the internally retained output frequency is reset to zero.)
After a baseblock command is cleared, the voltage will be restored in the voltage recovery time set in
D
L2-04.
Run/stop command
Baseblock command
Frequency reference
Output frequency
Fig
Baseblock Command
7.17
Acceleration/Deceleration Ramp Hold (Setting: A)
OFF
Normal operation or restart acceleration/deceleration.
ON
Pause acceleration/deceleration and maintain the present frequency.
With this setting, the multi-function input pauses acceleration or deceleration and maintains (holds)
D
the output frequency.
Acceleration/deceleration is restarted when the acceleration/deceleration ramp hold input is turned
D
OFF.
The motor will be stopped if a stop command is input while the acceleration/deceleration ramp hold
D
input is ON.
When constant d4-01 (the frequency reference hold function selector) is set to 1, the held frequency
D
will be stored in memory. This stored frequency will be retained even after a power loss and the motor
will be restarted at this frequency when a run command is input again.
Run/stop command
Acceleration/deceleration
ramp hold
Frequency reference
Output frequency
Fig
Acceleration/Deceleration Ramp Hold
7.18
When d4-01 is set to 1, the held output frequency will be retained. To operate at this frequency even
D
after the Inverter is stopped, input the run command with the acceleration/deceleration ramp hold input
ON.
When d4-01 is set to 0, the output frequency will be held at zero if the run command is input with the
D
acceleration/deceleration ramp hold input ON.
OH2 Alarm Signal (Setting: B)
OFF
Normal operation
ON
Normal operation (The warning message "OH2" will be displayed on the Digital Operator.)
The message "OH2" will be displayed on the Digital Operator while the multi-function input is ON
D
and the display will revert to its previous status when the input is turned OFF. (It isn't necessary to reset
the alarm.) The Inverter will continue operation without detecting a fault.
OFF
ON
Input
OFF ON
OFF
ON
OFF
Hold
- 33
7.3 C ommon Functions
Cleared
The retained output frequency
is output in a step pattern.
Coasting
OFF
ON
ON
Hold
7
d4-01=1
d4-01=0
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