Yaskawa AC Drive-P1000 Industrial Fan - Manual (Page 220)

Setting 15: Frequency Detection 3
The output opens when the output frequency rises above the detection level set in L4-03 plus the detection with set in L4-04.
The terminal remains open until the output frequency or motor speed falls below the level set in L4-03. The detection level
L4-03 is a signed value; detection works in the specified direction only.
Status Description
Open Output frequency or motor speed exceeded L4-03 plus L4-04.
Closed Output frequency or motor speed is below L4-03 or has not exceeded L4-03 plus L4-04.
L4-04
Frequency
detection 3
ON OFF
L4-03
Output Frequency
or Motor Speed
Figure 5.53 Frequency Detection 3 Example with a Positive L3-04 Value
Refer to L4-03, L4-04: Speed Agreement Detection Level and Detection Width (+/-) on page 252 for more details.
Setting 16: Frequency Detection 4
The output closes when the output frequency is above the detection level set in L4-03. The terminal remains closed until the
output frequency or motor speed falls below L4-03 minus the setting of L4-04.
Status Description
Open Output frequency or motor speed is below L4-03 minus L4-04 or has not exceeded L4-03.
Closed Output frequency or motor speed exceeded L4-03.
Note: The detection level L4-03 is a signed value; detection works in the specified direction only.
L4-04
Frequency
Detection 4
ON OFF
L4-03
Output Frequency
or Motor Speed
Figure 5.54 Frequency Detection 4 Example with Positive L3-04 Value
Refer to L4-03, L4-04: Speed Agreement Detection Level and Detection Width (+/-) on page 252 for more details.
Setting 1A: During Reverse
A digital output set for “During reverse” closes when the drive is running the motor in the reverse direction.
Status Description
Open Motor is being driven in the forward direction or stopped.
Closed Motor is being driven in reverse.
5.7 H: Terminal Functions
220 YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual