Setting
Function
83
Alternate Multi-Setpoint (Q1-02)
84
Alternate Multi-Setpoint (Q1-03)
85
Alternate Multi-Setpoint (Q1-04)
88
Volute-Thermostat Normally Open
89
Volute-Thermostat Normally Closed
8C
Disable Pre-Charge
8D
Multi Setpoint 1
8E
Multi Setpoint 2
8F
Low Water Level
Setting
Function
90
High Water Level
92
Reset Accum
95
Remove Drive Disable
A8
Secondary PI Disable (N.O.)
A9
Secondary PI Disable (N.C.)
AA
Secondary PI Inverse Operation
AB
Secondary PI Integral Reset
AC
Secondary PI Integral Hold
AD
Select Secondary PI Parameters
Setting 0: 3-Wire Sequence
The digital input programmed for 3-Wire control becomes the forward/reverse directional input, S1 becomes the Run command
input, and S2 becomes the Stop command input.
The drive starts the motor when the input S1 set for the Run command closes for longer than 2 ms. The drive stops the operation
when the Stop input S2 releases for 2 ms. When the digital input programmed for a forward/reverse operation is open, the
drive is set for forward operation. When the digital input is closed, the drive is set for reverse operation.
Note:
Input the Run and Stop commands via S1 and S2 when selecting a 3-Wire sequence.
S1
S2
S5
SN
Run Command (Runs when Closed)
DRIVE
Stop Switch
(N.C.)
Run Switch
(N.O.)
Stop Command (Stops when Open)
FWD/REV (Multi-Function Input)
(H1-05 = 0)
Standard Digital Input Common
Figure 4.25 3-Wire Sequence Wiring Diagram
2 ms minimum
Run command
OFF (stopped)
Can be either ON or OFF
OFF (forward)
Motor speed
Forward/reverse
command
Stop command
Stop
Reverse
Stop
Foward
TIME
Forward
ON (reverse)
Figure 4.26 3-Wire Sequence
Note:
1.
The Run command must be closed for more than 2 ms.
2.
If the Run command is active at power up and b1-17 = 0 (Run command at power up not accepted), the Run LED will flash to indicate
that protective functions are operating. If required by the application, set b1-17 to 1 to automatically issue the Run command upon drive
power up.
WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before applying
power to the drive. Failure to comply could result in death or serious injury from moving equipment.
WARNING! Sudden Movement Hazard. The drive may start unexpectedly in reverse direction after power up if it is wired for 3-Wire sequence
but set up for 2-Wire sequence (default). Make sure b1-17 is set to “0” (drive does not accept a Run command active at power up). When
initializing the drive use 3-Wire initialization. Failure to comply could result in death or serious injury from moving equipment.
4.7 Basic U1000 iQpump Setup and Application Preset Parameters
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YASKAWA TOEPYAIUPW01A YASKAWA AC Drive - U1000 iQpump Matrix Drive User Manual