Yaskawa Z1000 AC Drive HVAC - Manual (Page 284)

H1 Multi-Function Digital Input Selections
H1-
Setting
Function LCD Display Description Page
7B KEB Ride-Thru 2 (N.O.) KEB Ridethru2NO
Closed: KEB Ride-Thru 2 enabled. Drive disregards L2-29 and performs Single
Drive KEB Ride-Thru 2.
–
7C
Short circuit braking
(N.O.)
SC Brake (NO) Closed: Short Circuit Braking enabled –
7D
Short circuit braking
(N.C.)
SC Brake (NC)
OLV/PM OLV/PM
Open: Short Circuit Braking enabled
–
A4 BP Customer Safeties BP Emg Override Closed: Indicates that customer safeties are in place. –
A5 BP Drive/Bypass Select BP Drv/Bypss Sel
Open: Bypass mode.
Closed: Drive mode.
–
A6 BP BAS Interlock Input BP BAS Interlock Closed: Indicates that the dampers are open –
A7 BP Customer Safeties BP Cust Safeties Closed: Indicates that customer safeties are in place. –
A8
Secondary PI Disable
(N.O.)
PI2 Disable N.O.
Closed: Disables the secondary PI controller. Output behavior depends on the
setting of S3-12.
–
A9
Secondary PI Disable
(N.C.)
PI2 Disable N.C.
Closed: Enables the secondary PI controller. Output behavior depends on the
setting of S3-12 when open.
–
AA
Secondary PI Inverse
Operation
PI2 Invert
Closed: Changes the sign of the secondary PI controller input (reverse acting PI
control).
–
AB
Secondary PI Integral
Reset
PI2 Intgrl Reset Closed: Resets the secondary PI controller integral value. –
AC
Secondary PI Integral
Hold
PI2 Intgrl Hold Closed: Locks the value of the secondary PI controller integral value. –
AD
Select Secondary PI
Parameters
Select PI2 Parms
Closed: Uses the secondary PI controller Proportional and Integral adjustments
(S3-06 and S3-07) instead of the primary PI controller Proportional and Integral
adjustments (b5-02 and b5-03). Only valid when S3-01 = 0 (secondary PI
controller disabled).
Note: This multi-function input has no effect on the secondary PI
controller. It is only used for the primary PI controller (b5-).
–
AE BP Bypass Run BP Bypass Run
Closed: Commands a Run (via closing the BP Bypass Relay multi-function output)
when in Bypass mode.
–
AF
Emergency Override
Forward Run
EmergOverrideFWD Closed: Emergency Override Forward Run –
B0
Emergency Override
Reverse Run
EmergOverrideREV Closed: Emergency Override Reverse Run –
B1 Customer Safeties CustomerSafeties
The functionality is identical to Drive Enable 2 (H1- = 70), except for the
following characteristics:
• The stopping method is forced to Coast to Stop when the input is open
• The drive will display a “SAFE” alarm if the input is open when a Run command
is present. It will not display “dnE”.
Open: Customer Safeties are open. Drive will not run. Stopping method is Coast
to Stop.
Closed: Customer Safeties are in place.
–
B2 BAS Interlock BAS Interlock
Open: Damper interlock is not closed. Drive output is shut off (baseblocked). The
drive displays an "inTLK" message if a Run command is present. It will not display
"dnE".
Closed: Damper interlock is closed. Drive operates normally.
Note: The state of the BAS Interlock multi-function input has no effect on
the Emergency Override multi-function inputs (H1- = AF, B0).
The Emergency Override command is accepted when the BAS
Interlock digital input is open or closed.
–
B.7 H Parameters: Multi-Function Terminals
284 YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual