Parameters: 4-** Main Menu - Limits/Warnings - Danfoss VLT FC 102 Programming Manual

Parameter Descriptions
3.6 Parameters: 4-** Main Menu - Limits/
Warnings
3.6.1 4-1* Motor Limits
Define torque, current, and speed limits for the motor, and
the reaction of the frequency converter when the limits are
exceeded.
A limit may generate a message in the display. A warning
always generates a message in the display or on the
fieldbus. A monitoring function may initiate a warning or a
trip, after which the frequency converter stops and
generates an alarm message.
4-10 Motor Speed Direction
Option: Function:
NOTICE
The setting in
parameter 4-10 Motor Speed
Direction has impact on the
flying start in
parameter 1-73 Flying Start.
Selects the motor speed direction
required.
Use this parameter to prevent
unwanted reversing.
[0] Clockwise Only operation in clockwise
direction is allowed.
[2] Both Operation in both clockwise and
*
directions counterclockwise direction is
allowed.
4-11 Motor Speed Low Limit [RPM]
Range: Function:
Size [ 0 - par. 4-13 Enter the minimum limit for motor
related RPM] speed in RPM. The motor speed low
*
limit can be set to correspond to
the minimum motor speed
recommended by the manufacturer.
The motor speed low limit must
not exceed the setting in
parameter 4-13 Motor Speed High
Limit [RPM].
4-12 Motor Speed Low Limit [Hz]
Range: Function:
Size [ 0 - par. 4-14 Enter the minimum limit for motor
related Hz] speed in Hz. The motor speed low
*
limit can be set to correspond to
the minimum output frequency of
the motor shaft. The speed low
limit must not exceed the setting in
parameter 4-14 Motor Speed High
Limit [Hz].
M0010001
Programming Guide
4-13 Motor Speed High Limit [RPM]
Range:
Size
related
*
4-14 Motor Speed High Limit [Hz]
Range:
Size
related
*
Danfoss A/S © 10/2019 All rights reserved.
Function:
NOTICE
[ par. 4-11 -
60000 RPM]
Any changes in
parameter 4-13 Motor Speed
High Limit [RPM] reset the
value in
parameter 4-53 Warning Speed
High to the value set in
parameter 4-13 Motor Speed
High Limit [RPM].
NOTICE
Maximum output frequency
cannot exceed 10% of the
inverter switching frequency
(parameter 14-01 Switching
Frequency).
Enter the maximum limit for motor
speed in RPM. The motor speed
high limit can be set to correspond
to the manufacturer's maximum
rated motor. The motor speed high
limit must exceed the setting in
parameter 4-11 Motor Speed Low
Limit [RPM].
The parameter name appears as
either parameter 4-11 Motor Speed
Low Limit [RPM] or
parameter 4-12 Motor Speed Low
Limit [Hz], depending on:
•
The settings of other
parameters in the Main
Menu.
•
Default settings based on
geographical location.
Function:
[ par. 4-12 - Enter the maximum limit for motor
par. 4-19 Hz] speed in Hz. Parameter 4-14 Motor
Speed High Limit [Hz] can be set to
correspond to the manufacturer's
recommended maximum motor
speed. The motor speed high limit
must exceed the value in
parameter 4-12 Motor Speed Low
Limit [Hz]. The output frequency
must not exceed 10% of the
switching frequency
(parameter 14-01 Switching
Frequency).
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