YASKAWA H6B1A002 Technical Reference Download

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9.17 Z: Bypass Parameters

666

YASKAWA

SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference

No.

(Hex.)

Name

Description

Default

(Range)

Ref.

Z1-20

(85D9)

Energy Savings Out Freq
Deadband

Sets the tolerance around the drive output frequency value during comparisons to enter or
exit Energy Savings Mode.

Note:

Units, default, and range are different for different

o1-03 [Frequency Display Unit

Selection]

values.

0.50 Hz

(0.00 - 5.00 Hz)

435

Z1-21

(85DA)

Energy Savings Out Cur
Deadband

Sets the tolerance around the drive output current value during comparisons to enter or exit
Energy Savings Mode as a percentage of motor rated current.

15.0%

(0.0 - 30.0%)

435

Z1-22

(85DB)

Energy Savings Mode
Time

Sets the length of time that the drive frequency reference and drive output frequency must
be in the set limits before transferring to Energy Savings Mode.

30 s

(10 - 3600 s)

435

Z1-23

(85DC)

Energy Savings Freq Ref
Increase

Sets the value to add to the drive Frequency Reference when transferring to Bypass Energy
Savings Mode.

Note:

Units, default, and range are different for different

o1-03 [Frequency Display Unit

Selection]

values.

6.00 Hz

(0.00 - 10.00 Hz)

435

Z1-24

(85DD)

Contactor Open Delay

Sets the time to delay after commanding the drive output contactor K2 or bypass contactor
K3 or 2-Motor OR/AND contactors K4 and K5 to open to let the contacts open.

0.2 s

(0.0 - 5.0 s)

435

Z1-25

(85DE)

Contactor Close Delay

Sets the time to delay after commanding the drive output contactor K2 or bypass contactor
K3 or 2-Motor OR/AND contactors K4 and K5 to close to let the contacts close.

0.2 s

(0.0 - 5.0 s)

435

Z1-27

(85E0)

Brownout Voltage Level

Sets the voltage level below which is a brownout condition.

98 V

(0 - 150 V)

436

Z1-28

(85E1)

Brownout Detection Time Sets the length of time that the Bypass voltage must be less than the Brownout Voltage

Level before the Bypass will trigger a Brownout fault.

3.0 s

(1.0 - 300.0 s)

436

Z1-29

(85E2)

Blackout Voltage Level

Sets the voltage level below which is a blackout condition. When the input voltage is less
than this level, the Bypass will trigger a Blackout fault.

75 V

(0 - 150 V)

436

Z1-31

(85E4)

Loss of Load Detection
Select

Sets the function to detect loss of load.

0 : Disabled

1 : Enable and Fault

2 : Enable and Alarm

(0 - 2)

436

Z1-32

(85E5)

Loss of Load Drive
Frequency

Sets the value to which the drive output frequency must be equal to or more than for the
drive to detect a loss of load.

60.00 Hz

(0.00 - Max Freq.)

436

Z1-33

(85E6)

Loss of Load Drive Out
Current

The drive output frequency must be equal to or more than this level for the drive to detect a
loss of load.

0.0 A

(0.0 - 999.9 A)

436

Z1-34

(85E7)

Loss of Load Drive Det
Time

The loss of load conditions must be met for the length of time in this parameter before the
bypass will detect a loss of load in Drive Mode.

1.0 s

(0.0 - 300.0 s)

436

Z1-35

(85E8)

Loss of Load Bypass
Current

The motor current must be equal to or less than this value to detect a loss of load.

0.0 A

(0.0 - 999.9 A)

436

Z1-36

(85E9)

Loss of Load Bypass Det
Time

The motor current must be equal to or less than this value to detect a loss of load.

1.0 s

(0.0 - 300.0 s)

437

Z1-39

(85EC)

Drive/Bypass Source
Select

Sets the function to select the Drive or the Bypass as the source of Drive/Bypass Mode
selection.

0 : Keypad

1 : Digital Input

2 : Serial Communications

3 : Option PCB

(0 - 3)

437

Z1-40

(85ED)

Auto Transfer Delay
Time

When you enable Auto Transfer and the bypass detects a drive fault, the bypass controller
will wait for the length of time set in this parameter before it switches to bypass.

0.0 s

(0.0 - 300.0 s)

437

Z1-42

(85EF)

Soft Starter Selection

Selects the soft starter device type when you use it with a bypass.

0 : Not Installed

–

Contactor Only

1 : Installed

–