Danfoss VACON 100 FLOW Series Application Manual page 169

VACON® 100 FLOW
Application Guide
To activate the function, set the parameter P3.1.2.6 to the value Enabled. The drive stops automatically when the motor switch is
opened, and the drive starts automatically when the motor switch is closed. The drive does not trip when using the Motor switch
function.
0 1
A
Illustration 35: The Motor Switch Between the Drive and the Motor
A The motor switch
B Mains
11.3.2.6 (ID 607) Overvoltage Control
Location in the menu: P3.1.2.10
Use this parameter to set the overvoltage controller out of operation.
The function is necessary when
• the supply voltage changes, for example, between -15% and +10%, and
• the controlled process does not have the tolerance for the changes that the undervoltage controller and the overvoltage con-
troller make to the output frequency of the drive.
The overvoltage controller increases the output frequency of the drive
• to keep the DC link voltage in the permitted limits, and
• to make sure that the drive does not trip because of an overvoltage fault.
The drive can trip when the overvoltage and undervoltage controllers are disabled.
11.3.2.7 (ID 608) Undervoltage Control
Location in the menu: P3.1.2.11
Use this parameter to set the undervoltage controller out of operation.
The function is necessary when
• the supply voltage changes, for example, between -15% and +10%, and
• the controlled process does not have the tolerance for the changes that the undervoltage controller and the overvoltage con-
troller make to the output frequency of the drive.
The undervoltage controller decreases the output frequency of the drive
• to get energy from the motor to keep the DC-link voltage at a minimum level when the voltage is near the lowest permitted
limit, and
• to make sure that the drive does not trip because of an undervoltage fault.
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N O T I C E
Parameter Descriptions
AB298035655957en-000201 / DPD01083 | 169