5.7 H: Terminal Functions
170
YASKAWA ELECTRIC
SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Note:
The detection works in both forward and reverse. The value of L4-01 will be used as the detection level for both directions.
Figure 5.47
Figure 5.47 User Set Speed Agree 1 Time Chart
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 195
for details on setting the
detection width.
Setting 4: Frequency Detection 1
Output is closed as long as the output frequency is below the detection level set in L4-01 plus the hysteresis set in L4-02.
It closes when the output frequency falls below L4-01.
Note:
The detection works in both forward and reverse. The value of L4-01 will be used as the detection level for both directions.
Figure 5.48
Figure 5.48 Frequency Detection 1 Time Chart
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 195
for details on setting the
detection width.
Setting 5: Frequency Detection 2
Output closes whenever the output frequency is equal to or above the detection level set in L4-01. The output opens when
the output frequency falls below L4-01 minus the hysteresis set in L4-02.
Note:
The detection works in both forward and reverse. The value of L4-01 will be used as the detection level for both directions.
Status
Description
Open
Output frequency or frequency reference are outside the range of L4-01 ± L4-02.
Closed
Output frequency and the frequency reference are both with in the range of L4-01 ± L4-02.
Status
Description
Open
Output frequency exceeded L4-01 + L4-02.
Closed
Output frequency is below L4-01 or has not exceeded L4-01 + L4-02.
Status
Description
Open
Output frequency is below L4-01 minus L4-02 or has not exceeded L4-01.
Closed
Output frequency exceeded L4-01.
Output
frequency
User Set
Speed Agree 1
OFF
ON
Frequency
reference
OFF
ON
Frequency
reference
Output
frequency
L4-01
+/- L4-02
L4-01
+/- L4-02
Output
frequency
L4-02
Frequency
detection 1
ON
OFF
L4-02
L4-01
L4-01
