Yaskawa AC Drive Z1000 AC Drive HVAC Fan - Manual (Page 73)

Setting Function Page
A6 BP BAS Interlock 81
A7 BP Customer Safeties 81
A8 PI2 Disable (N.O.) 81
A9 PI2 Disable (N.C.) 81
AA PI2 Inverse Operation 81
AB PI2 Integral Reset 81
AC PI2 Integral Hold 82
Setting Function Page
AD Select PI2 Parameters 82
AE BP Bypass Run 82
AF Emergency Override Forward Run 82
B0 Emergency Override Reverse Run 82
B1 Customer Safeties 82
B2 BAS Interlock 82
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 is released. 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 1.30 3-Wire Sequence Wiring Diagram
Figure 5.61
2 ms min.
Run command
Can be
ON or OFF
2 ms min.
ON (reverse)
d r a w o F p o t S e s r e v e R p o t S
Can be either ON or OFF
OFF (forward)
Forward
Motor speed
Forward/reverse
command
Stop command
Figure 1.31 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.
Settings 3 and 4: Multi-Step Speed Reference 1 and 2
Switches multi-step speed frequency references d1-01 to d1-04 by digital inputs. Refer to d1: Frequency Reference on page
56 for details.
Setting 6: Jog Reference Selection
The Jog frequency set in parameter d1-17 becomes the frequency reference when the input terminal closes. Refer to d1:
Frequency Reference on page 56 for details.
1.7 H: Terminal Functions
YASKAWA ELECTRIC SIEP YAIZ1U 03A YASKAWA AC Drive – Z1000 Programming Manual 73
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Parameter Details