Yaskawa iQpump Programming Manual - Manual (Page 65)

YASKAWA TM.iQp.02 iQpump Drive Programming Manual 65
Function: Freq Detect 2 (Setting: 5)
A Freq Detect 2 output will be closed whenever the output frequency is equal to or above the value of the programmed Speed Agree
Level (L4-01). The Speed Agree Width (L4-02) is the hysteresis to the Freq Detect 2 function. Whenever the output frequency
approaches the Speed Agree Level (L4-01) while accelerating it will de-energize exactly at the Speed Agree Level.
As the output frequency approaches the Speed Agree Level while decelerating, the Freq Detect 2 output will de-energize when the output
frequency is equal to or below the Speed Agree Level (L4-01) minus the Speed Agree Width (L4-02).
The Freq Detect 2 function is effective during both forward and reverse operation.
Figure 1.54
Figure 54 Freq Detect 2 Timing Diagram
Function: Inverter Ready (Setting: 6)
The Inverter Ready output will be closed whenever the iQpump drive is not in a fault state and not being programmed. If b1-08 = “1:
Enabled,” an iQpump drive that is in an active Run state that is also being programmed will have the Inverter Ready output closed.
Function: DC Bus Undervolt (Setting: 7)
The DC Bus Undervolt output will close whenever the main circuit DC Bus voltage or control circuit power supply drop below their
respective trip level. The undervoltage trip level is determined by parameter L2-05. An open soft charge contactor answer back signal
will also cause the DC Bus Undervolt output to close.
Function: BaseBlk 1 (Setting: 8)
A BaseBlk 1 programmed output will close to indicate that the iQpump drive is in baseblocked state. While in a baseblock state the
Drive’s output transistors are prevented from firing. A BaseBlk 1 output contact can also serve as notice that the iQpump drive has a
charged DC Bus, no fault and can start at any time.
Function: Option Reference (Setting: 9)
When an output is configured as an Option Reference output, the output will close to show that the speed command is being sourced from
the digital operator. If the Option Reference output is open, it indicates the speed command is coming from the control circuit terminals
or an optional communications card.
Function: Remote/Auto Operation (Setting: A)
When an output is configured as a Remote Operation output, the output will close to show that the Run command is being sourced from
the digital operator. If the Remote Operation output is open, it indicates the Run command is coming from the control circuit terminals or
an optional communications card.
Frequency Detection Signal
Output Frequency
t
a - Detection Width (L4-02)
a
L4-01
t
a - Speed Agree Width (L4-02)
Frequency Detection 2 Signal
a
OFF (OPEN)
ON (CLOSED)
TIME