Main Menu - Limits/Warnings - Group; Motor Limits; Adj. Warnings - Danfoss VLT HVAC Basic Drive FC 100 Series Programming Manual

Parameters

3.5 Main Menu - Limits/Warnings - Group 4

3.5.1 4-1* Motor Limits

Define current and speed limits for the motor, and the
reaction of the adjustable frequency drive when the limits
are exceeded.
4-10 Motor Speed Direction
Option: Function:
[0] Clockwise Only operation in a clockwise direction will
be allowed.
[2] Both directions Operation in both a clockwise and counter-
clockwise direction will be allowed.
NOTE!
The setting in 4-10 Motor Speed Direction has impact on
1-73 Flying Start.
4-12 Motor Speed Low Limit [Hz]
Range: Function:
0 Hz [ 0 - 400.0 Enter the minimum limit for motor speed.
*
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
4-14 Motor Speed High Limit [Hz].
4-14 Motor Speed High Limit [Hz]
Range: Function:
65 Hz [ 0.1 - Enter the maximum limit for motor speed.
*
400.0 Hz] 4-14 Motor Speed High Limit [Hz] can be set
to match the manufacturer's recommended
max. motor speed. The Motor Speed High
Limit must exceed the value in 4-12 Motor
Speed Low Limit [Hz].
NOTE!
Max. output frequency cannot exceed 10% of the inverter
switching frequency (14-01 Switching Frequency).
NOTE!
Motor Speed High Limit cannot be set higher than
4-19 Max Output Frequency.
4-18 Current Limit
Range:
110 % [0 - 300 %]
*
4-19 Max Output Frequency
Range:
Size related [ 0.0 - 400 Hz]
*
®
VLT HVAC Basic Drive Programming Guide
3.5.2 4-4* Adjustable Warnings 2
4-40 Warning Frequency Low
Range:
0.00
Hz
4-41 Warning Frequency High
Range:
400.0
Hz

3.5.3 4-5* Adj. Warnings

Define adjustable warning limits for current. Warnings are
shown on the display, programmed output or serial bus.
4-50 Warning Current Low
Range:
0 A
4-51 Warning Current High
Range:
Size
related
Function:
Function:
®
MG18B222 - VLT is a registered Danfoss trademark
Function:
[0.0 Hz- Use this parameter to set a lower limit
Depends on the for the frequency range.
*
value of 4-41 When the motor speed falls below this
Warning limit, the display reads SPEED LOW.
Frequency High] Warning bit 10 is set in 16-94 Ext.
Status Word. Output Relay can be
configured to indicate this warning.
LCP warning light does not light when
this parameter set limit is reached.
Function:
[Depends on Use this parameter to set a higher
the value of 4-40 limit for the frequency range.
*
Warning When the motor speed exceeds this
Frequency Low - limit, the display reads SPEED HIGH.
400.0 Hz] Warning bit 9 is set in 16-94 Ext.
Status Word. Output Relay can be
configured to indicate this warning.
LCP warning light does not light
when this parameter set limit is
reached.
Function:
[ 0 - 194.0 Enter the I value. When the motor current
*
LOW
A] falls below this limit, a bit in the drive's status
word will be set. This value can also be
programmed to produce a signal on the
digital output or the relay output.
Function:
[ 0.0 - Enter the I
194.0 A] current exceeds this limit, a bit in the
*
drive's status word will be set. This
value can also be programmed to
produce a signal on the digital output
or the relay output.
value. When the motor
HIGH
3-17
3 3