4.21 Parameter Group 31-** Bypass Option
Parameter 31-00 Bypass Mode
Table 722: Parameter 31-00 Bypass Mode
31-00 Bypass Mode
Default Value: [0] Drive
Parameter Type: Option
Setup: All set-ups
Conversion Index: -
Data Type: Uint8
Change during operation: True
Select the bypass operating mode.
Option
Name
Description
[0]*
Drive
The drive operates the motor.
[1]
Bypass
The motor is operated at full speed during bypass mode.
Parameter 31-01 Bypass Start Time Delay
Table 723: Parameter 31-01 Bypass Start Time Delay
31-01 Bypass Start Time Delay
Default Value: 30 s
Parameter Type: Range, 0 - 60 s
Setup: All set-ups
Conversion Index: 0
Data Type: Uint16
Change during operation: True
Setting the time delay to pass from the bypass receives a run command until it starts the motor at full speed. A countdown timer
shows the remaining time.
Parameter 31-02 Bypass Trip Time Delay
Table 724: Parameter 31-02 Bypass Trip Time Delay
31-02 Bypass Trip Time Delay
Default Value: 0 s
Parameter Type: Range, 0 - 300 s
Setup: All set-ups
Conversion Index: 0
Data Type: Uint16
Change during operation: True
Setting the time delay to pass from the drive experiences an alarm that stops it and until the motor is automatically switched to
bypass control. If the delay is set to 0, a drive alarm does not automatically switch the motor to bypass control.
Parameter 31-03 Test Mode Activation
Table 725: Parameter 31-03 Test Mode Activation
31-03 Test Mode Activation
Default Value: [0] Disabled
Parameter Type: Option
Setup: All set-ups
Conversion Index: -
Data Type: Uint8
Change during operation: True
Option Name
Description
[0]*
Disabled Test mode is disabled.
[1]
Enabled
The motor runs in bypass while the drive can be tested into an open circuit. In this mode, keypad does not
control start/stop of bypass.
AU373327181955en-000101 / 130R1208 | 341
Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide
