YASKAWA Z1000 CIMR-ZU*A Series Programming Manual page 149

Fwd Run
Bypass Run
Drive Enable-Customer
Safeties
Override (Smoke Purge)
Drive/Bypass Select
BAS Interlock
BP Drive Relay Contact
Output
BP Bypass Relay Contact
Output
BP BAS Interlock Contact
Output
SFS Output Frequency
n
S4-01: BP Auto Transfer on Fault Enable
Enables Auto-Transfer when a fault occurs.
No.
S4-01
Setting 0: No Transfer after Fault
Setting 1: Transfer to Bypass after Fault
n S4-02: BP Energy Save Bypass Trigger Level
Delta used to determine when to switch into Energy Save Bypass. This allows for lower frequency output values to also trigger
Energy Save Bypass functionality. A transfer to bypass occurs after the drive reaches the programmed output frequency (E1-04
to S4-02) for the time specified in the BP Energy Save Bypass Timer (S4-03). Additionally, if frequency input is set below
E1-04 to S4-02, the drive exits Energy Save Bypass. Setting S4-02 to 0 disables Energy Save Bypass functionality.
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
BP Energy Save
Bypass Timer
Figure 1.81 Energy Savings Mode
Name
BP Auto Transfer on Fault Enable
Speed
Search
<2>
Occurs
<1>
L2-03
S4-03
Frequency Commanded to less than
E1-04 minus S4-02 (BP Energy Save
Bypass Trigger Level)
Setting Range
1.11 S: Special Parameters
L2-03
Default
0 or 1 0
1
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