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 frequency converter when the limits are
exceeded.
4-10 Motor Speed Direction
Option:
Function:
[0]
Clockwise
Only operation in clockwise direction is
allowed.
[2]
*
Both
directions
Operation in both clockwise and anti-
clockwise direction are allowed.
NOTICE
The setting in
has impact on
1-73 Flying Start
.
4-12 Motor Speed Low Limit [Hz]
Range:
Function:
0 Hz
*
[ 0 -
400.0 Hz]
Enter the minimum limit for motor speed. 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]
Range:
Function:
65 Hz
*
[ 0.1 -
400.0 Hz]
Enter the maximum limit for motor speed.
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
.
NOTICE
Max. output frequency cannot exceed 10% of the
inverter switching frequency (
).
NOTICE
Motor Speed High Limit cannot be set higher
than
4-18 Current Limit
Range:
Function:
110
%
*
[0 -
300
%]
Enter the current limit for motor and generator
operation (in % of rated motor current. If the
value is higher than maximum rated output from
frequency converter, current is still limited to the
frequency converters maximum output current).
If a setting in
to
is changed,
4-18 Current Limit
Range:
Function:
is not automatically reset to
the default setting.
4-19 Max Output Frequency
Range:
Function:
Size
related
*
[ 0.0 -
400
Hz]
Enter the max. output frequency value.
specifies the
absolute limit on the frequency converter
output frequency for improved safety in
applications where accidental over-speeding
must be avoided. This absolute limit applies
to all configurations and is independent of
the setting in
.
3.5.2 4-4* Adjustable Warnings 2
4-40 Warning Frequency Low
Range:
Function:
0.00
Hz
*
[0.0 Hz-
Depend on the
value of
4-41
Warning
Frequency High
]
Use this parameter to set a lower limit
for the frequency range.
When the motor speed falls below this
limit, the display reads SPEED LOW.
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.
4-41 Warning Frequency High
Range:
Function:
400.0
Hz
*
[Depend on
the value of
4-40 Warning
Frequency Low
-400.0 Hz]
Use this parameter to set a higher
limit for the frequency range.
When the motor speed exceeds this
limit, the display reads SPEED HIGH.
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.
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:
Function:
0 A
*
[ 0 -
194.0 A]
Enter the I
LOW
value. When the motor current
falls below this limit, a bit in the statusword is
set. This value can also be programmed to
produce a signal on the digital output or the
relay output.
Parameters
VLT
®
HVAC Basic Drive FC 101 Programming Guide
MG18B302 - Rev. 2013-09-02
35
3
3
Summary of Contents for VLT HVAC Basic Drive FC 101
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