Omron VARISPEED F7 User Manual

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Current Detection
Speed Search at Startup
The time chart when speed search at startup or external speed search command is selected is shown below.
Fig 6.61 Speed Search at Startup (Current Detection)
Speed Search after Power Loss
• Loss time shorter than minimum baseblock time
Fig 6.62 Speed Search after Power Loss Time < L2-03
•
Loss time longer than minimum baseblock time
Fig 6.63 Speed Search after Power Loss with Loss Time > L2-03
OFF
ON
Run command
Output frequency
Output current
* Lower limit is set using Speed Search Time (b3-05).
Deceleration time set in b3-03
b3-02
Set frequency ref-
erence
Maximum output
frequency or
set frequency
Minimum baseblock time*
(L2-03)
OFF
ON
AC power supply
Output frequency
Output current
Set frequency ref-
erence
Minimum baseblock time (L2-03)
*1
*2
Output frequency before power loss
speed search operating current
Deceleration time set
in b3-03
*1Baseblock time may be reduced by the output frequency immediately
before baseblock.
*2After AC power supply recovery, the inverter waits for the minimum
Speed Search Wait Time (b2-03).
b3-02
Minimum baseblock time
(L2-03)
OFF
ON
AC power supply
Output frequency
Output current
Set frequency ref-
erence
Speed search operating time
b3-02
Deceleration speed set in b3-03
Output frequency before power loss
Speed search wait time (b3-05)

Omron VARISPEED F7 Specifications

General

Brand	Omron
Model	VARISPEED F7
Category	Inverter
Language	English