YASKAWA iQpump Series Programming Manual page 64

Function: Fref/Set Agree 1 (Setting: 3)
The "Fref/Set Agree 1" output will close whenever the actual output frequency and the Speed Command are within the Speed Agree
Width (L4-02) of the programmed Speed Agree Level (L4-01).
Figure 1.52
Frequency
Speed Command
Reference
Output Frequency
Frequency/Set Agree 1 Frequency Agree
Signal Signal
Function: Freq Detect 1 (Setting: 4)
A "Freq Detect 1" output will be closed whenever the output frequency is equal to or below the value of the programmed Speed Agree
Level (L4-01). The Speed Agree Width (L4-02) is the hysteresis to the Freq Detect 1 function. Whenever the output frequency
approaches the Speed Agree Level while accelerating it will need to be equal to or exceed the Speed Agree Level (L4-01) plus the Speed
Agree Width (L4-02) before the Freq Detect 1 output will energize.
As the output frequency approaches the Speed Agree Level while decelerating, the Freq Detect 1 output will de-energize exactly at the
Speed Agree Level.
The Freq Detect 1 function is effective during both forward and reverse operation.
Figure 1.53
Output
Frequency
Frequency
Detection 1 Signal Detection Signal
64
a
a - Speed Agree Width (L4-02) X2
a
D t ti Width (L4 02) X 2
Figure 52 Fref/Set Agree 1 Timing Diagram
a a
a - Speed Agree Width (L4-02)
a
- Detection Width (L4-02)
Figure 53 Freq Detect 1 Timing Diagram
t
Speed Agree Level
(L4-01)
t
ON (CLOSED)
t
OFF (OPEN)
TIME
L4-01
TIME
YASKAWA TM.iQp.02 iQpump Drive Programming Manual
t
t
ON (CLOSED)
OFF (OPEN)