Yaskawa iQpump Micro - Manual (Page 142)

Status Description
Open Output frequency or motor speed and frequency reference are not both within the range of L4-01 ±L4-02.
Closed Output frequency or motor speed and the frequency reference are both within the range of L4-01 ±L4-02.
Note: Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.
Frequency reference
Frequency reference + L4-02
Frequency reference – L4-02
L4-01
L4-01 + L4-02
L4-01 – L4-02
Frequency reference
Frequency reference + L4-02
Frequency reference – L4-02
–L4-01
–L4-01 + L4-02
–L4-01 – L4-02
During
Forward
During Reverse
Output frequency
0 Hz
OFF OFF OFF ON ON ON ON
Output frequency
User Set
Speed Agree 1
Figure 4.46 User Set Speed Agree 1 Time Chart
Setting 4: Frequency Detection 1
The output opens when the output frequency rises above the detection level set in L4-01 plus the detection width set in L4-02.
The terminal remains open until the output frequency or motor speed fall below the level set in L4-01.
Status Description
Open Output frequency or motor speed exceeded L4-01 + L4-02.
Closed Output frequency or motor speed is below L4-01 or has not exceeded L4-01 + L4-02.
Note: Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.
L4-02
Frequency
detection 1
ON OFF
L4-02
L4-01
L4-01
Output Frequency
or Motor Speed
Figure 4.47 Frequency Detection 1 Time Chart
Setting 5: Frequency Detection 2
The output closes when the output frequency is above the detection level set in L4-01. The terminal remains closed until the
output frequency or motor speed fall below L4-01 minus the setting of L4-02.
Status Description
Open Output frequency or motor speed is below L4-01 minus L4-02 or has not exceeded L4-01.
Closed Output frequency or motor speed exceeded L4-01.
Note: Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.
4.8 Detailed iQpump Parameter Descriptions
142 YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual