YASKAWA HV600 Technical Reference page 450

Ac drive bypass for hvac fan and pump applications
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5.14 Z: Bypass Parameters
13: Drive Mode Selected
Setting Value
Function
13
Drive Mode Selected
ON : Drive Mode is selected
OFF : Bypass Mode is selected
14: Bypass Mode Selected
Setting Value
Function
14
Bypass Mode Selected
ON : Bypass Mode is selected
OFF : Drive Mode is selected
15: Fault Active
Setting Value
Function
15
Fault Active
16: Drive Fault Active
Setting Value
Function
16
Drive Fault Active
The digital output activates when the HV600 drive is in a faulted condition, including during an FB10 – Loss of Drive
Communications fault.
17: Bypass Fault Active
Setting Value
Function
17
Bypass Fault Active
The digital output activates when there is a bypass control fault. This includes all FBxx faults (except FB10). The
HV600 drive is NOT in a faulted condition.
18: Auto Transfer Active
Setting Value
Function
18
Auto Transfer Active
The digital output activates when a drive fault causes the system to transfer to Bypass Mode. This is applicable only
when Z1-05 = 1 [Auto Transfer To Bypass = Enabled].
19: Serial Run Active
Setting Value
Function
19
Serial Run Active
The digital output activates when serial communications (RS-485 – Terminal TB3) is commanding a RUN and b1-02
= 2 or 8 [ Run Command Selection 1 = Serial Communications or AUTO Command + Serial Run].
20: Damper Actuator Output
Setting Value
Function
20
Damper Actuator Output
This is a digital output for connection to an actuator that will open a damper. The output should activate when the
system is going to run. Parameters Z1-12 to Z1-15 determine the operation of this digital output. Refer to
with Preset Speed Examples on page 431
450
The digital output activates when Drive Mode is selected. It stays active during Remote Transfer to Bypass, Emergency Override
Bypass, Energy Savings, Fault condition, and when the system is not running.
The digital output activates when Bypass Mode is selected. It stays active during Emergency Override Drive, Fault condition, and
when the system is not running.
Set when there is an active Drive fault or Bypass fault.
There is a fault in the HV600 drive.
There is a fault in the bypass.
There is a drive fault that activated Auto Transfer to Bypass.
Serial Communications is commanding a RUN.
System commanded to RUN in Drive Mode or Bypass Mode.
for information.
Description
Description
Description
Description
Description
Description
Description
Description
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Run Delay

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