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 1.43 User Set Speed Agree 1 Time Chart
Refer to L4-01, L4-02: Speed Agree Detection Level and Detection Width on page 116
for more instructions.
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 fall below the level set in L4-01.
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.
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
Figure 1.44 Frequency Detection 1 Time Chart
Refer to L4-01, L4-02: Speed Agree Detection Level and Detection Width on page 116
for more details.
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 fall below L4-01 minus the setting of 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.
Note:
Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.
1.7 H: Terminal Functions
90
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
