Automatic Restart
6-39
îš‹ Speed Search
The speed search function finds the actual speed of a motor that is coasting and then starts smoothly from that
speed. It is also activated after momentary power loss detection when L2-01 is set to 1 or 2.
îš„Related Parameters
Multi-function Digital Inputs
Parameter
Number
Name
Setting
Range
Factory
Setting
Change
during
Operation
Access
Level
b3-01
Speed search selection (current detection or speed
calculation)
0 to 3 2 No A
b3-02 Speed search operating current (current detection)
0 to
200
120% No A
b3-03 Speed search deceleration time (current detection)
0.1 to
10.0
2.0 sec. No A
b3-05
Speed search wait time (current detection or speed
calculation)
0.0 to
20.0
0.2 sec. No A
b3-14 Bi-directional speed search selection 0 or 1 1 No A
L2-03 Min. baseblock time 0.1 to 5.0 0.1 sec. No A
L2-04 Voltage recovery time
0.0 to
5.0
0.3 sec.
*1
*1. The factory setting depends on the Inverter capacity. The value for a 200 V class Inverter of 0.4kW is given.
No A
Set Value Function
61
External speed search command 1
OFF: Speed search disabled (Acceleration starts from FMIN)
ON: Speed calculation (Calculates the motor speed and starts search from the calculated speed)
Current detection (Starts speed search from maximum output frequency)
62
External speed search command 2
OFF: Speed search disabled (Acceleration starts from FMIN)
ON: Speed calculation (Calculates the motor speed and starts search from the calculated speed)
(Same operation as external speed search command 1)
Current detection: Starts speed search from set frequency
(reference frequency when speed search command was input).
64
External speed search command 3
OFF: Inverter is base blocked
ON: Inverter starts operation using speed search (same operation as speed search 2)
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