YASKAWA HV600 Technical Reference page 451

Ac drive bypass for hvac fan and pump applications
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21: ON Always
Setting Value
Function
21
ON Always
This input indicates when power is applied to the system. This input can be useful for troubleshooting and
commissioning.
22: Loss of Load Detected
Setting Value
Function
22
Loss of Load Detected
The digital output activates when the system detects a loss of load condition. It is also active when there is an [FB13
– Loss of Load Detected] fault. Parameters Z1-31 to Z1-36 set loss of load detection.
23: Run Verify Active
Setting Value
Function
23
Run Verify Active
24: Soft Starter Run Command
Setting Value
Function
24
Soft Starter Run Command
25: Safeties Closed
Setting Value
Function
25
Safeties Closed
The digital output activates when ALL of the digital inputs programmed safety signals are satisfied. This includes
digital input settings: [22 – Run Eable – Safety (NC)], [38 – fire Stat Switch (NC)], [39 – Freeze Stat Switch (NC)],
[40 – Smoke Alarm (NC)], [41 – Overpressure Switch (NC)], [42 – Low Suction Switch (NC)] and [43 – Vibration
Switch].
26: Mirror HV600 M1-M2
Setting Value
Function
26
Mirror HV600 M1-M2
Use H2-01 [Term H2-01 – M1-M2 Function Selection] to set the M1-M2 digital output. Refer to
on page 619
for more information about setting values.
Note:
When the drive unit is OFF (in Bypass Mode in a 3-contactor configured bypass), this output will be OFF.
ON : Digital Output M1-M2 on HV600 is closed
OFF : Digital Output M1-M2 on HV600 is open
27: Mirror HV600 M3-M4
Setting Value
Function
27
Mirror HV600 M3-M4
Use H2-02 [Term H2-02 – M3-M4 Function Selection] to set the M3-M4 digital output. Refer to
on page 619
for more information about setting values.
Note:
When the drive unit is OFF (in Bypass Mode in a 3-contactor configured bypass), this output will be OFF.
ON : Digital Output M3-M4 on HV600 is closed
OFF : Digital Output M3-M4 on HV600 is open
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
This digital output is always active.
The motor current is less than the set value/values.
The digital output closes when the drive or bypass output current is more than 10% of E2-01.
Controls the soft starter Run command to ramp down the soft starter before it opens bypass contactor K3.
All of the programmed safety digital inputs are satisfied.
The digital output activates when the HV600 drive digital output (M1-M2) is closed.
The digital output activates when the HV600 drive digital output (M3-M4) is closed.
5.14 Z: Bypass Parameters
Description
Description
Description
Description
Description
Description
H2: Digital Outputs
Description
H2: Digital Outputs
5
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