YASKAWA HV600 Technical Reference page 446

Ac drive bypass for hvac fan and pump applications
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5.14 Z: Bypass Parameters
30: External Overload Motor 2 (NC)
Setting Value
Function
30
External Overload Motor 2
(NC)
31: HAND Select
Setting Value
Function
31
HAND Select
If you set both HAND and AUTO functions to come from digital inputs, the HOA function will be OFF because both
inputs are not active. The OFF key on the HOA operator will always put the HOA function into the OFF state.
32: AUTO Select
Setting Value
Function
32
AUTO Select
If you set both HAND and AUTO functions to come from digital inputs, the HOA function will be OFF because both
inputs are not active. The OFF key on the HOA operator will always put the HOA function into the OFF state.
33: Drive/Bypass Select
Setting Value
Function
33
Drive/Bypass Select
34: Fault Reset
Setting Value
Function
34
Fault Reset
Resets faults.
35: External Fault (EF0)
Setting Value
Function
35
External Fault (EF0)
36: External Fault (EFB)
Setting Value
Function
36
External Fault (EFB)
37: Run Reverse (AUTO)
Setting Value
Function
37
Run Reverse (AUTO)
38: Fire Stat Switch (NC)
Setting Value
Function
38
Fire Stat Switch (NC)
39: Freeze Stat Switch (NC)
Setting Value
Function
39
Freeze Stat Switch (NC)
40: Smoke Alarm (NC)
Setting Value
Function
40
Smoke Alarm (NC)
446
When input is open, it will trigger an oL fault and open bypass (K3) contactors.
The HAND function command will come from a digital input and the unit ignores the HAND key on the HOA operator.
The AUTO function command will come from a digital input and the unit ignores the AUTO key on the HOA operator.
The DRIVE/BYPASS select function command will come from a digital input, and the unit ignores the DRV/BYP key on the HOA
operator.
Resets any faults that are present.
Issues external fault EF0 from the bypass to the drive.
Triggers external fault EFB on the bypass.
Starts and stops the bypass in reverse.
Stops the drive from running and shows "Fire Stat" on the keypad.
Stops the drive from running and shows "Freeze Stat" on the keypad.
Stops the drive from running and shows "Smoke Alarm" on the keypad.
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YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference

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